Subject: Re: [Fot] A-Type Overdrive Testing

From: Greg Blake via Fot <[email-masked]>
Date: Tue, 24 Dec 2019 11:47:38 -0600

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If this is for a race car, you might consider shiming the accumulator spring=
 to get closer to 500psi.=20

Sent from my iPhone

> On Dec 24, 2019, at 10:51 AM, David Gott via Fot <[email-masked]> wrot=
e:
>=20
> =EF=BB=BF I was able to test my overdrive by chucking a 1/2=E2=80=9D elect=
ric drill on the input shaft and turning the whole transmission.  (Make sure=
 to spin the right direction!). Pretty sure I used 4th gear.   I was able to=
 determine that my OD pressure is at 350 psi, so I=E2=80=99ll have to shim t=
he spring I guess.
>=20
> Secondary question; the OD seemed to stick on me, but I did not have a loa=
d on the output flange, due to being on the bench; I=E2=80=99m assuming this=
 might be an issue?  Or would a load coax the OD to releasing as appropriate=
?
>=20
> Hopefully I don=E2=80=99t hijack your thread too much!
>=20
> Thanks,
> Dave Gott
> 62 TR4 (=E2=80=9CA=E2=80=9D type on the bench)
>=20
> Sent from Yahoo Mail for iPhone
>=20
> On Tuesday, December 24, 2019, 11:25 AM, Jack Wheeler via Fot <[email-masked]=
eam.net> wrote:
>=20
> I have tested overdrives like this for years.  My drive motor only spins i=
n one direction, which makes sure the output shaft only spins in the same di=
rection the shaft would be spinning when the car is driven in a forward spee=
d.  Therefore, I don't know what would happen if you spun it in the wrong di=
rection.
>=20
> Jack
>=20
> On Monday, December 23, 2019, 10:05:53 PM EST, Glenn Franco via Fot <fot@a=
utox.team.net> wrote:
>=20
>=20
> Merry Christmas
> Quick Question
> A friend of mine started testing his A-Type Overdrives by back spinning th=
e output flange (to the prop shaft) with a pulley and electric motor.
> I've seen this done by spinning the transmission INPUT shaft with a pulley=
 and electric motor but not from the rear.
> Any chance of damaging the overdrive since the overrunning clutch is only g=
oing to spin in the one direction, can it lock up the overdrive?
> Thanks in advance
> Glenn
>=20
> _______________________________________________
> [email-masked]
>=20
> http://www.fot-racing.com
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/jwheeler1947=
@yahoo.com
>=20
>=20
> _______________________________________________
> [email-masked]
>=20
> http://www.fot-racing.com
>=20
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ahoo.com
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>=20
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>=20
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>=20
>=20

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">If this is for a race car, you might consid=
er shiming the accumulator spring to get closer to 500psi.&nbsp;<br><br><div=
 dir=3D"ltr">Sent from my iPhone</div><div dir=3D"ltr"><br><blockquote type=3D=
"cite">On Dec 24, 2019, at 10:51 AM, David Gott via Fot &lt;[email-masked]=
et&gt; wrote:<br><br></blockquote></div><blockquote type=3D"cite"><div dir=3D=
"ltr">=EF=BB=BF<!--[if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG=
/><o:PixelsPerInch>96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![e=
ndif]-->
I was able to test my overdrive by chucking a 1/2=E2=80=9D electric drill on=
 the input shaft and turning the whole transmission. &nbsp;(Make sure to spi=
n the right direction!). Pretty sure I used 4th gear. &nbsp; I was able to d=
etermine that my OD pressure is at 350 psi, so I=E2=80=99ll have to shim the=
 spring I guess.<div><br></div><div>Secondary question; the OD seemed to sti=
ck on me, but I did not have a load on the output flange, due to being on th=
e bench; I=E2=80=99m assuming this might be an issue? &nbsp;Or would a load c=
oax the OD to releasing as appropriate?</div><div><br></div><div>Hopefully I=
 don=E2=80=99t hijack your thread too much!</div><div><br></div><div>Thanks,=
</div><div>Dave Gott<br>62 TR4 (=E2=80=9CA=E2=80=9D type on the bench)<br><b=
r><a href=3D"https://overview.mail.yahoo.com/?.src=3DiOS">Sent from Yahoo Ma=
il for iPhone</a><br><br><p class=3D"yahoo-quoted-begin" style=3D"font-size:=
 15px; color: #715FFA; padding-top: 15px; margin-top: 0">On Tuesday, Decembe=
r 24, 2019, 11:25 AM, Jack Wheeler via Fot &lt;[email-masked]&gt; wrote:=
</p><blockquote class=3D"iosymail"><div id=3D"yiv6260932080"><div><div class=
=3D"yiv6260932080ydp7dbf0fe6yahoo-style-wrap" style=3D"font-family:Helvetica=
 Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div></div>
        <div dir=3D"ltr">I have tested overdrives like this for years.&nbsp;=
 My drive motor only spins in one direction, which makes sure the output sha=
ft only spins in the same direction the shaft would be spinning when the car=
 is driven in a forward speed.&nbsp; Therefore, I don't know what would happ=
en if you spun it in the wrong direction.</div><div dir=3D"ltr"><br clear=3D=
"none"></div><div dir=3D"ltr">Jack<br clear=3D"none"></div><div><br clear=3D=
"none"></div>
       =20
        </div><div class=3D"yiv6260932080ydpfd023d29yahoo_quoted" id=3D"yiv6=
260932080ydpfd023d29yahoo_quoted_7545444271">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, sa=
ns-serif;font-size:13px;color:#26282a;">
               =20
                <div class=3D"yiv6260932080yqt9559972606" id=3D"yiv626093208=
0yqt71890"><div>
                    On Monday, December 23, 2019, 10:05:53 PM EST, Glenn Fra=
nco via Fot &lt;[email-masked]&gt; wrote:
                </div>
                <div><br clear=3D"none"></div>
                <div><br clear=3D"none"></div>
                <div><div id=3D"yiv6260932080ydpfd023d29yiv2459643629"><div d=
ir=3D"ltr"><div>Merry Christmas</div><div>Quick Question</div><div>A friend o=
f mine started testing his A-Type Overdrives by back spinning the output fla=
nge (to the prop shaft) with a pulley and electric motor.</div><div>I've see=
n this done by spinning the transmission&nbsp;INPUT shaft with a pulley and e=
lectric motor but not from the rear.</div><div>Any chance of damaging the ov=
erdrive since the overrunning clutch is only going to spin in the one direct=
ion, can it lock up the overdrive?</div><div>Thanks in advance</div><div>Gle=
nn</div><div><br clear=3D"none"></div></div></div>__________________________=
_____________________<br clear=3D"none"><a rel=3D"nofollow" shape=3D"rect" y=
mailto=3D"mailto:[email-masked]" target=3D"_blank" href=3D"mailto:fot@au=
tox.team.net">[email-masked]</a><br clear=3D"none"><br clear=3D"none"><a=
 rel=3D"nofollow" shape=3D"rect" target=3D"_blank" href=3D"http://www.fot-ra=
cing.com">http://www.fot-racing.com</a><br clear=3D"none"><br clear=3D"none"=
>Donate: <a rel=3D"nofollow" shape=3D"rect" target=3D"_blank" href=3D"http:/=
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t" ymailto=3D"mailto:[email-masked]" href=3D"mailto:[email-masked]">=
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tox.team.net</span><br><span></span><br><span>http://www.fot-racing.com</spa=
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_______________________________________________
[email-masked]

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Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot

--===============0583359499354447347==--

---

From: David Gott via Fot <[email-masked]>
Date: Tue, 24 Dec 2019 18:49:53 +0000 (UTC)

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Speaking of spinning the OD backwards, which it won=E2=80=99t do, what happ=
ens if you spin the car while overdrive is engaged? =C2=A0 Probably my bigg=
est concern for running one of these in a race car... =C2=A0 I was thinking=
 I=E2=80=99d use it on track and maybe autocross, but I think that is ill a=
dvised now that I bring up that question. =C2=A0 Has anyone ever spun and r=
olled backwards, with OD engaged?
Dave G

On Tuesday, December 24, 2019, 12:47 PM, Greg Blake <[email-masked]=
> wrote:

If this is for a race car, you might consider shiming the accumulator sprin=
g to get closer to 500psi.=C2=A0

Sent from my iPhone

On Dec 24, 2019, at 10:51 AM, David Gott via Fot <[email-masked]> wrote=
:

=EF=BB=BFI was able to test my overdrive by chucking a 1/2=E2=80=9D electri=
c drill on the input shaft and turning the whole transmission. =C2=A0(Make =
sure to spin the right direction!). Pretty sure I used 4th gear. =C2=A0 I w=
as able to determine that my OD pressure is at 350 psi, so I=E2=80=99ll hav=
e to shim the spring I guess.
Secondary question; the OD seemed to stick on me, but I did not have a load=
 on the output flange, due to being on the bench; I=E2=80=99m assuming this=
 might be an issue? =C2=A0Or would a load coax the OD to releasing as appro=
priate?
Hopefully I don=E2=80=99t hijack your thread too much!
Thanks,Dave Gott
62 TR4 (=E2=80=9CA=E2=80=9D type on the bench)

On Tuesday, December 24, 2019, 11:25 AM, Jack Wheeler via Fot <[email-masked]=
am.net> wrote:

 I have tested overdrives like this for years.=C2=A0 My drive motor only sp=
ins in one direction, which makes sure the output shaft only spins in the s=
ame direction the shaft would be spinning when the car is driven in a forwa=
rd speed.=C2=A0 Therefore, I don't know what would happen if you spun it in=
 the wrong direction.
Jack

    On Monday, December 23, 2019, 10:05:53 PM EST, Glenn Franco via Fot <fo=
[email-masked]> wrote: =20
=20
 Merry ChristmasQuick QuestionA friend of mine started testing his A-Type O=
verdrives by back spinning the output flange (to the prop shaft) with a pul=
ley and electric motor.I've seen this done by spinning the transmission=C2=
=A0INPUT shaft with a pulley and electric motor but not from the rear.Any c=
hance of damaging the overdrive since the overrunning clutch is only going =
to spin in the one direction, can it lock up the overdrive?Thanks in advanc=
eGlenn
_______________________________________________
[email-masked]

yahoo.com

hoo.com

cloud.com

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<html xmlns=3D"http://www.w3.org/1999/xhtml" xmlns:v=3D"urn:schemas-microso=
ft-com:vml" xmlns:o=3D"urn:schemas-microsoft-com:office:office"><head><!--[=
if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>=
96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]--></head><bo=
dy>
Speaking of spinning the OD backwards, which it won=E2=80=99t do, what happ=
ens if you spin the car while overdrive is engaged? &nbsp; Probably my bigg=
est concern for running one of these in a race car... &nbsp; I was thinking=
 I=E2=80=99d use it on track and maybe autocross, but I think that is ill a=
dvised now that I bring up that question. &nbsp; Has anyone ever spun and r=
olled backwards, with OD engaged?<div><br></div><div>Dave G<br><br><br><a h=
ref=3D"https://overview.mail.yahoo.com/?.src=3DiOS">Sent from Yahoo Mail fo=
r iPhone</a><br><br><p class=3D"yahoo-quoted-begin" style=3D"font-size: 15p=
x; color: #715FFA; padding-top: 15px; margin-top: 0">On Tuesday, December 2=
4, 2019, 12:47 PM, Greg Blake &lt;[email-masked]&gt; wrote:</p><blo=
ckquote class=3D"iosymail"><div id=3D"yiv0957845862"><div>If this is for a =
race car, you might consider shiming the accumulator spring to get closer t=
o 500psi.&nbsp;<br clear=3D"none"><br clear=3D"none"><div dir=3D"ltr">Sent =
from my iPhone</div><div dir=3D"ltr"><br clear=3D"none"><blockquote type=3D=
"cite">On Dec 24, 2019, at 10:51 AM, David Gott via Fot &lt;[email-masked].=
net&gt; wrote:<br clear=3D"none"><br clear=3D"none"></blockquote></div><blo=
ckquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF
I was able to test my overdrive by chucking a 1/2=E2=80=9D electric drill o=
n the input shaft and turning the whole transmission. &nbsp;(Make sure to s=
pin the right direction!). Pretty sure I used 4th gear. &nbsp; I was able t=
o determine that my OD pressure is at 350 psi, so I=E2=80=99ll have to shim=
 the spring I guess.<div><br clear=3D"none"></div><div>Secondary question; =
the OD seemed to stick on me, but I did not have a load on the output flang=
e, due to being on the bench; I=E2=80=99m assuming this might be an issue? =
&nbsp;Or would a load coax the OD to releasing as appropriate?</div><div><b=
r clear=3D"none"></div><div>Hopefully I don=E2=80=99t hijack your thread to=
o much!</div><div><br clear=3D"none"></div><div>Thanks,</div><div>Dave Gott=
<br clear=3D"none">62 TR4 (=E2=80=9CA=E2=80=9D type on the bench)<br clear=
=3D"none"><br clear=3D"none"><a rel=3D"nofollow" shape=3D"rect" target=3D"_=
blank" href=3D"https://overview.mail.yahoo.com/?.src=3DiOS">Sent from Yahoo=
 Mail for iPhone</a><br clear=3D"none"><br clear=3D"none"><p class=3D"yiv09=
57845862yahoo-quoted-begin" style=3D"font-size:15px;color:#715FFA;padding-t=
op:15px;margin-top:0;">On Tuesday, December 24, 2019, 11:25 AM, Jack Wheele=
r via Fot &lt;[email-masked]&gt; wrote:</p><blockquote class=3D"yiv0957=
845862iosymail"><div id=3D"yiv0957845862"><div><div class=3D"yiv0957845862y=
dp7dbf0fe6yahoo-style-wrap" style=3D"font-family:Helvetica Neue, Helvetica,=
 Arial, sans-serif;font-size:13px;"><div></div>
        <div dir=3D"ltr">I have tested overdrives like this for years.&nbsp=
; My drive motor only spins in one direction, which makes sure the output s=
haft only spins in the same direction the shaft would be spinning when the =
car is driven in a forward speed.&nbsp; Therefore, I don't know what would =
happen if you spun it in the wrong direction.</div><div dir=3D"ltr"><br cle=
ar=3D"none"></div><div dir=3D"ltr">Jack<br clear=3D"none"></div><div><br cl=
ear=3D"none"></div>
       =20
        </div><div class=3D"yiv0957845862ydpfd023d29yahoo_quoted" id=3D"yiv=
0957845862ydpfd023d29yahoo_quoted_7545444271">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div class=3D"yiv0957845862yqt9559972606" id=3D"yiv09578458=
62yqt71890"><div>
                    On Monday, December 23, 2019, 10:05:53 PM EST, Glenn Fr=
anco via Fot &lt;[email-masked]&gt; wrote:
                </div>
                <div><br clear=3D"none"></div>
                <div><br clear=3D"none"></div>
                <div><div id=3D"yiv0957845862ydpfd023d29yiv2459643629"><div=
 dir=3D"ltr"><div>Merry Christmas</div><div>Quick Question</div><div>A frie=
nd of mine started testing his A-Type Overdrives by back spinning the outpu=
t flange (to the prop shaft) with a pulley and electric motor.</div><div>I'=
ve seen this done by spinning the transmission&nbsp;INPUT shaft with a pull=
ey and electric motor but not from the rear.</div><div>Any chance of damagi=
ng the overdrive since the overrunning clutch is only going to spin in the =
one direction, can it lock up the overdrive?</div><div>Thanks in advance</d=
iv><div>Glenn</div><div><br clear=3D"none"></div></div></div>______________=
_________________________________<br clear=3D"none"><a rel=3D"nofollow" sha=
pe=3D"rect" ymailto=3D"mailto:[email-masked]" target=3D"_blank" href=3D=
"mailto:[email-masked]">[email-masked]</a><br clear=3D"none"><br cl=
ear=3D"none"><a rel=3D"nofollow" shape=3D"rect" target=3D"_blank" href=3D"h=
ttp://www.fot-racing.com">http://www.fot-racing.com</a><br clear=3D"none"><=
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iv0957845862yqt09620">_______________________________________________<br cl=
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From: Tony Drews via Fot <[email-masked]>
Date: Tue, 24 Dec 2019 13:01:44 -0600

This is a multi-part message in MIME format.
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I didn't spin but I did lock up one rear wheel with a Detroit Locker 
diff.  Large bang, it didn't like that.  Detroit Locker was OK, but the 
one way clutch / roller arrangement in the OD broke into multiple 
pieces.  What's funny is that it still worked perfectly.  I had some 
debris fall out later when I changed the tranny oil so I took the OD 
apart and the inner part of the one way roller assembly came out in 3 or 
4 pieces.

Cheers, Tony

On 12/24/2019 12:49 PM, David Gott via Fot wrote:
> Speaking of spinning the OD backwards, which it won’t do, what happens 
> if you spin the car while overdrive is engaged?   Probably my biggest 
> concern for running one of these in a race car...   I was thinking I’d 
> use it on track and maybe autocross, but I think that is ill advised 
> now that I bring up that question.   Has anyone ever spun and rolled 
> backwards, with OD engaged?
>
> Dave G
>
>
> <https://overview.mail.yahoo.com/?.src=iOS>
>
> On Tuesday, December 24, 2019, 12:47 PM, Greg Blake 
> <[email-masked]> wrote:
>
>     If this is for a race car, you might consider shiming the
>     accumulator spring to get closer to 500psi.
>
>     Sent from my iPhone
>
>>     On Dec 24, 2019, at 10:51 AM, David Gott via Fot
>>     <[email-masked]> wrote:
>>
>>      I was able to test my overdrive by chucking a 1/2” electric
>>     drill on the input shaft and turning the whole transmission.
>>      (Make sure to spin the right direction!). Pretty sure I used 4th
>>     gear.   I was able to determine that my OD pressure is at 350
>>     psi, so I’ll have to shim the spring I guess.
>>
>>     Secondary question; the OD seemed to stick on me, but I did not
>>     have a load on the output flange, due to being on the bench; I’m
>>     assuming this might be an issue?  Or would a load coax the OD to
>>     releasing as appropriate?
>>
>>     Hopefully I don’t hijack your thread too much!
>>
>>     Thanks,
>>     Dave Gott
>>     62 TR4 (“A” type on the bench)
>>
>>     <https://overview.mail.yahoo.com/?.src=iOS>
>>
>>     On Tuesday, December 24, 2019, 11:25 AM, Jack Wheeler via Fot
>>     <[email-masked]> wrote:
>>
>>         I have tested overdrives like this for years.  My drive motor
>>         only spins in one direction, which makes sure the output
>>         shaft only spins in the same direction the shaft would be
>>         spinning when the car is driven in a forward speed.
>>         Therefore, I don't know what would happen if you spun it in
>>         the wrong direction.
>>
>>         Jack
>>
>>         On Monday, December 23, 2019, 10:05:53 PM EST, Glenn Franco
>>         via Fot <[email-masked]> wrote:
>>
>>
>>         Merry Christmas
>>         Quick Question
>>         A friend of mine started testing his A-Type Overdrives by
>>         back spinning the output flange (to the prop shaft) with a
>>         pulley and electric motor.
>>         I've seen this done by spinning the transmission INPUT shaft
>>         with a pulley and electric motor but not from the rear.
>>         Any chance of damaging the overdrive since the overrunning
>>         clutch is only going to spin in the one direction, can it
>>         lock up the overdrive?
>>         Thanks in advance
>>         Glenn
>>
>>         Archive: http://autox.team.net/archive
>>         <http://autox.team.net/archive >http://www.team.net/pipermail/fot
>>         Unsubscribe/Manage:
>>         http://autox.team.net/mailman/options/fot/[email-masked]
>>
>>
>>         Archive: http://autox.team.net/archive
>>         <http://autox.team.net/archive >http://www.team.net/pipermail/fot
>>         Unsubscribe/Manage:
>>         http://autox.team.net/mailman/options/fot/[email-masked]
>>
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>>
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>
> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/[email-masked]
>
>

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<html>
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    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  </head>
  <body text="#000000" bgcolor="#FFFFFF">
    <p>I didn't spin but I did lock up one rear wheel with a Detroit
      Locker diff.  Large bang, it didn't like that.  Detroit Locker was
      OK, but the one way clutch / roller arrangement in the OD broke
      into multiple pieces.  What's funny is that it still worked
      perfectly.  I had some debris fall out later when I changed the
      tranny oil so I took the OD apart and the inner part of the one
      way roller assembly came out in 3 or 4 pieces.</p>
    <p>Cheers, Tony<br>
    </p>
    <div class="moz-cite-prefix">On 12/24/2019 12:49 PM, David Gott via
      Fot wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:[email-masked]">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      <!--[if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]-->
      Speaking of spinning the OD backwards, which it won’t do, what
      happens if you spin the car while overdrive is engaged?   Probably
      my biggest concern for running one of these in a race car...   I
      was thinking I’d use it on track and maybe autocross, but I think
      that is ill advised now that I bring up that question.   Has
      anyone ever spun and rolled backwards, with OD engaged?
      <div><br>
      </div>
      <div>Dave G<br>
        <br>
        <br>
        <a href="https://overview.mail.yahoo.com/?.src=iOS"
          moz-do-not-send="true">Sent from Yahoo Mail for iPhone</a><br>
        <br>
        <p class="yahoo-quoted-begin" style="font-size: 15px; color:
          #715FFA; padding-top: 15px; margin-top: 0">On Tuesday,
          December 24, 2019, 12:47 PM, Greg Blake
          <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a> wrote:</p>
        <blockquote class="iosymail">
          <div id="yiv0957845862">
            <div>If this is for a race car, you might consider shiming
              the accumulator spring to get closer to 500psi. <br
                clear="none">
              <br clear="none">
              <div dir="ltr">Sent from my iPhone</div>
              <div dir="ltr"><br clear="none">
                <blockquote type="cite">On Dec 24, 2019, at 10:51 AM,
                  David Gott via Fot <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a> wrote:<br
                    clear="none">
                  <br clear="none">
                </blockquote>
              </div>
              <blockquote type="cite">
                <div dir="ltr">
                  I was able to test my overdrive by chucking a 1/2”
                  electric drill on the input shaft and turning the
                  whole transmission.  (Make sure to spin the right
                  direction!). Pretty sure I used 4th gear.   I was able
                  to determine that my OD pressure is at 350 psi, so
                  I’ll have to shim the spring I guess.
                  <div><br clear="none">
                  </div>
                  <div>Secondary question; the OD seemed to stick on me,
                    but I did not have a load on the output flange, due
                    to being on the bench; I’m assuming this might be an
                    issue?  Or would a load coax the OD to releasing as
                    appropriate?</div>
                  <div><br clear="none">
                  </div>
                  <div>Hopefully I don’t hijack your thread too much!</div>
                  <div><br clear="none">
                  </div>
                  <div>Thanks,</div>
                  <div>Dave Gott<br clear="none">
                    62 TR4 (“A” type on the bench)<br clear="none">
                    <br clear="none">
                    <a rel="nofollow" shape="rect" target="_blank"
                      href="https://overview.mail.yahoo.com/?.src=iOS"
                      moz-do-not-send="true">Sent from Yahoo Mail for
                      iPhone</a><br clear="none">
                    <br clear="none">
                    <p class="yiv0957845862yahoo-quoted-begin"
                      style="font-size:15px;color:#715FFA;padding-top:15px;margin-top:0;">On
                      Tuesday, December 24, 2019, 11:25 AM, Jack Wheeler
                      via Fot <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a> wrote:</p>
                    <blockquote class="yiv0957845862iosymail">
                      <div id="yiv0957845862">
                        <div>
                          <div
                            class="yiv0957845862ydp7dbf0fe6yahoo-style-wrap"
                            style="font-family:Helvetica Neue,
                            Helvetica, Arial,
                            sans-serif;font-size:13px;">
                            <div dir="ltr">I have tested overdrives like
                              this for years.  My drive motor only spins
                              in one direction, which makes sure the
                              output shaft only spins in the same
                              direction the shaft would be spinning when
                              the car is driven in a forward speed. 
                              Therefore, I don't know what would happen
                              if you spun it in the wrong direction.</div>
                            <div dir="ltr"><br clear="none">
                            </div>
                            <div dir="ltr">Jack<br clear="none">
                            </div>
                            <div><br clear="none">
                            </div>
                          </div>
                          <div
                            class="yiv0957845862ydpfd023d29yahoo_quoted"
id="yiv0957845862ydpfd023d29yahoo_quoted_7545444271">
                            <div style="font-family:'Helvetica Neue',
                              Helvetica, Arial,
                              sans-serif;font-size:13px;color:#26282a;">
                              <div class="yiv0957845862yqt9559972606"
                                id="yiv0957845862yqt71890">
                                <div> On Monday, December 23, 2019,
                                  10:05:53 PM EST, Glenn Franco via Fot
                                  <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a> wrote: </div>
                                <div><br clear="none">
                                </div>
                                <div><br clear="none">
                                </div>
                                <div>
                                  <div
                                    id="yiv0957845862ydpfd023d29yiv2459643629">
                                    <div dir="ltr">
                                      <div>Merry Christmas</div>
                                      <div>Quick Question</div>
                                      <div>A friend of mine started
                                        testing his A-Type Overdrives by
                                        back spinning the output flange
                                        (to the prop shaft) with a
                                        pulley and electric motor.</div>
                                      <div>I've seen this done by
                                        spinning the transmission INPUT
                                        shaft with a pulley and electric
                                        motor but not from the rear.</div>
                                      <div>Any chance of damaging the
                                        overdrive since the overrunning
                                        clutch is only going to spin in
                                        the one direction, can it lock
                                        up the overdrive?</div>
                                      <div>Thanks in advance</div>
                                      <div>Glenn</div>
                                      <div><br clear="none">
                                      </div>
                                    </div>
                                  </div>
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                      <div class="yiv0957845862yqt9559972606"
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
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From: "John H. Hasty via Fot" <[email-masked]>
Date: Tue, 24 Dec 2019 19:18:36 +0000

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From: Jack Wheeler via Fot <[email-masked]>
Date: Tue, 24 Dec 2019 20:48:37 +0000 (UTC)

--===============6655702153536252016==
	boundary="----=_Part_3882398_171955985.1577220517947"

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 I always said those things were stout.=C2=A0 Raced one for 25 years withou=
t a failure.
Jack

    On Tuesday, December 24, 2019, 2:21:33 PM EST, Tony Drews via Fot <fot@=
autox.team.net> wrote: =20
=20
 =20
I didn't spin but I did lock up one rear wheel with a Detroit Locker diff.=
=C2=A0 Large bang, it didn't like that.=C2=A0 Detroit Locker was OK, but th=
e one way clutch / roller arrangement in the OD broke into multiple pieces.=
=C2=A0 What's funny is that it still worked perfectly.=C2=A0 I had some deb=
ris fall out later when I changed the tranny oil so I took the OD apart and=
 the inner part of the one way roller assembly came out in 3 or 4 pieces.
=20
Cheers, Tony
=20
 On 12/24/2019 12:49 PM, David Gott via Fot wrote:
 =20
=20
 Speaking of spinning the OD backwards, which it won=E2=80=99t do, what hap=
pens if you spin the car while overdrive is engaged? =C2=A0 Probably my big=
gest concern for running one of these in a race car... =C2=A0 I was thinkin=
g I=E2=80=99d use it on track and maybe autocross, but I think that is ill =
advised now that I bring up that question. =C2=A0 Has anyone ever spun and =
rolled backwards, with OD engaged?=20
  Dave G
=20
=20
 Sent from Yahoo Mail for iPhone
=20
=20
On Tuesday, December 24, 2019, 12:47 PM, Greg Blake <[email-masked]=
> wrote:
=20
  If this is for a race car, you might consider shiming the accumulator spr=
ing to get closer to 500psi.=C2=A0
=20
 Sent from my iPhone=20
=20
On Dec 24, 2019, at 10:51 AM, David Gott via Fot <[email-masked]> wrote=
:
=20
=20
 =20
 =EF=BB=BF I was able to test my overdrive by chucking a 1/2=E2=80=9D elect=
ric drill on the input shaft and turning the whole transmission. =C2=A0(Mak=
e sure to spin the right direction!). Pretty sure I used 4th gear. =C2=A0 I=
 was able to determine that my OD pressure is at 350 psi, so I=E2=80=99ll h=
ave to shim the spring I guess.=20
  Secondary question; the OD seemed to stick on me, but I did not have a lo=
ad on the output flange, due to being on the bench; I=E2=80=99m assuming th=
is might be an issue? =C2=A0Or would a load coax the OD to releasing as app=
ropriate?=20
  Hopefully I don=E2=80=99t hijack your thread too much!=20
  Thanks, Dave Gott
 62 TR4 (=E2=80=9CA=E2=80=9D type on the bench)
=20
 Sent from Yahoo Mail for iPhone
=20
=20
On Tuesday, December 24, 2019, 11:25 AM, Jack Wheeler via Fot <[email-masked]=
am.net> wrote:
=20
    I have tested overdrives like this for years.=C2=A0 My drive motor only=
 spins in one direction, which makes sure the output shaft only spins in th=
e same direction the shaft would be spinning when the car is driven in a fo=
rward speed.=C2=A0 Therefore, I don't know what would happen if you spun it=
 in the wrong direction.=20
  Jack
 =20
       On Monday, December 23, 2019, 10:05:53 PM EST, Glenn Franco via Fot =
<[email-masked]> wrote: =20
 =20
     Merry Christmas Quick Question A friend of mine started testing his A-=
Type Overdrives by back spinning the output flange (to the prop shaft) with=
 a pulley and electric motor. I've seen this done by spinning the transmiss=
ion=C2=A0INPUT shaft with a pulley and electric motor but not from the rear=
. Any chance of damaging the overdrive since the overrunning clutch is only=
 going to spin in the one direction, can it lock up the overdrive? Thanks i=
n advance Glenn=20
   _______________________________________________
 [email-masked]
=20
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=20
 Donate: http://www.team.net/donate.html
 Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
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<html><head></head><body><div class=3D"ydp25a12aa6yahoo-style-wrap" style=
=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px=
;"><div></div>
        <div dir=3D"ltr" data-setdir=3D"false">I always said those things w=
ere stout.&nbsp; Raced one for 25 years without a failure.</div><div dir=3D=
"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false=
">Jack<br></div><div><br></div>
       =20
        </div><div id=3D"ydp7580742fyahoo_quoted_8061009992" class=3D"ydp75=
80742fyahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Tuesday, December 24, 2019, 2:21:33 PM EST, Tony Dre=
ws via Fot &lt;[email-masked]&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id=3D"ydp7580742fyiv7831776079"><div>
    <p>I didn't spin but I did lock up one rear wheel with a Detroit
      Locker diff.&nbsp; Large bang, it didn't like that.&nbsp; Detroit Loc=
ker was
      OK, but the one way clutch / roller arrangement in the OD broke
      into multiple pieces.&nbsp; What's funny is that it still worked
      perfectly.&nbsp; I had some debris fall out later when I changed the
      tranny oil so I took the OD apart and the inner part of the one
      way roller assembly came out in 3 or 4 pieces.</p>
    <p>Cheers, Tony<br clear=3D"none">
    </p>
    <div class=3D"ydp7580742fyiv7831776079moz-cite-prefix">On 12/24/2019 12=
:49 PM, David Gott via
      Fot wrote:<br clear=3D"none">
    </div>
    <blockquote type=3D"cite">
      </blockquote></div><div>
      Speaking of spinning the OD backwards, which it won=E2=80=99t do, wha=
t
      happens if you spin the car while overdrive is engaged? &nbsp; Probab=
ly
      my biggest concern for running one of these in a race car... &nbsp; I
      was thinking I=E2=80=99d use it on track and maybe autocross, but I t=
hink
      that is ill advised now that I bring up that question. &nbsp; Has
      anyone ever spun and rolled backwards, with OD engaged?
      <div><br clear=3D"none">
      </div>
      <div>Dave G<br clear=3D"none">
        <br clear=3D"none">
        <br clear=3D"none">
        <a shape=3D"rect" href=3D"https://overview.mail.yahoo.com/?.src=3Di=
OS" rel=3D"nofollow" target=3D"_blank">Sent from Yahoo Mail for iPhone</a><=
br clear=3D"none">
        <br clear=3D"none">
        <p class=3D"ydp7580742fyiv7831776079yahoo-quoted-begin" style=3D"fo=
nt-size:15px;color:#715FFA;padding-top:15px;margin-top:0;">On Tuesday,
          December 24, 2019, 12:47 PM, Greg Blake
          <a shape=3D"rect" class=3D"ydp7580742fyiv7831776079moz-txt-link-r=
fc2396E" href=3D"mailto:[email-masked]" rel=3D"nofollow" target=3D"=
_blank">&lt;[email-masked]&gt;</a> wrote:</p>
        <blockquote class=3D"ydp7580742fyiv7831776079iosymail">
          <div id=3D"ydp7580742fyiv7831776079">
            <div>If this is for a race car, you might consider shiming
              the accumulator spring to get closer to 500psi.&nbsp;<br clea=
r=3D"none">
              <br clear=3D"none">
              <div dir=3D"ltr">Sent from my iPhone</div>
              <div dir=3D"ltr"><br clear=3D"none">
                <blockquote type=3D"cite">On Dec 24, 2019, at 10:51 AM,
                  David Gott via Fot <a shape=3D"rect" class=3D"ydp7580742f=
yiv7831776079moz-txt-link-rfc2396E" href=3D"mailto:[email-masked]" rel=
=3D"nofollow" target=3D"_blank">&lt;[email-masked]&gt;</a> wrote:<br cl=
ear=3D"none">
                  <br clear=3D"none">
                </blockquote>
              </div>
              <blockquote type=3D"cite">
                <div dir=3D"ltr">=EF=BB=BF
                  I was able to test my overdrive by chucking a 1/2=E2=80=
=9D
                  electric drill on the input shaft and turning the
                  whole transmission. &nbsp;(Make sure to spin the right
                  direction!). Pretty sure I used 4th gear. &nbsp; I was ab=
le
                  to determine that my OD pressure is at 350 psi, so
                  I=E2=80=99ll have to shim the spring I guess.
                  <div><br clear=3D"none">
                  </div>
                  <div>Secondary question; the OD seemed to stick on me,
                    but I did not have a load on the output flange, due
                    to being on the bench; I=E2=80=99m assuming this might =
be an
                    issue? &nbsp;Or would a load coax the OD to releasing a=
s
                    appropriate?</div>
                  <div><br clear=3D"none">
                  </div>
                  <div>Hopefully I don=E2=80=99t hijack your thread too muc=
h!</div>
                  <div><br clear=3D"none">
                  </div>
                  <div>Thanks,</div>
                  <div>Dave Gott<br clear=3D"none">
                    62 TR4 (=E2=80=9CA=E2=80=9D type on the bench)<br clear=
=3D"none">
                    <br clear=3D"none">
                    <a shape=3D"rect" href=3D"https://overview.mail.yahoo.c=
om/?.src=3DiOS" rel=3D"nofollow" target=3D"_blank">Sent from Yahoo Mail for
                      iPhone</a><br clear=3D"none">
                    <br clear=3D"none">
                    <p class=3D"ydp7580742fyiv7831776079yahoo-quoted-begin"=
 style=3D"font-size:15px;color:#715FFA;padding-top:15px;margin-top:0;">On
                      Tuesday, December 24, 2019, 11:25 AM, Jack Wheeler
                      via Fot <a shape=3D"rect" class=3D"ydp7580742fyiv7831=
776079moz-txt-link-rfc2396E" href=3D"mailto:[email-masked]" rel=3D"nofo=
llow" target=3D"_blank">&lt;[email-masked]&gt;</a> wrote:</p>
                    <blockquote class=3D"ydp7580742fyiv7831776079iosymail">
                      <div id=3D"ydp7580742fyiv7831776079">
                        <div>
                          <div class=3D"ydp7580742fyiv7831776079ydp7dbf0fe6=
yahoo-style-wrap" style=3D"font-family:Helvetica Neue, Helvetica, Arial, sa=
ns-serif;font-size:13px;">
                            <div dir=3D"ltr">I have tested overdrives like
                              this for years.&nbsp; My drive motor only spi=
ns
                              in one direction, which makes sure the
                              output shaft only spins in the same
                              direction the shaft would be spinning when
                              the car is driven in a forward speed.&nbsp;
                              Therefore, I don't know what would happen
                              if you spun it in the wrong direction.</div>
                            <div dir=3D"ltr"><br clear=3D"none">
                            </div>
                            <div dir=3D"ltr">Jack<br clear=3D"none">
                            </div>
                            <div><br clear=3D"none">
                            </div>
                          </div>
                          <div class=3D"ydp7580742fyiv7831776079ydpfd023d29=
yahoo_quoted" id=3D"ydp7580742fyiv7831776079ydpfd023d29yahoo_quoted_7545444=
271">
                            <div style=3D"font-family:'Helvetica Neue', Hel=
vetica, Arial, sans-serif;font-size:13px;color:#26282a;">
                              <div class=3D"ydp7580742fyiv7831776079yqt9559=
972606" id=3D"ydp7580742fyiv7831776079yqt71890">
                                <div> On Monday, December 23, 2019,
                                  10:05:53 PM EST, Glenn Franco via Fot
                                  <a shape=3D"rect" class=3D"ydp7580742fyiv=
7831776079moz-txt-link-rfc2396E" href=3D"mailto:[email-masked]" rel=3D"=
nofollow" target=3D"_blank">&lt;[email-masked]&gt;</a> wrote: </div>
                                <div><br clear=3D"none">
                                </div>
                                <div><br clear=3D"none">
                                </div>
                                <div>
                                  <div id=3D"ydp7580742fyiv7831776079ydpfd0=
23d29yiv2459643629">
                                    <div dir=3D"ltr">
                                      <div>Merry Christmas</div>
                                      <div>Quick Question</div>
                                      <div>A friend of mine started
                                        testing his A-Type Overdrives by
                                        back spinning the output flange
                                        (to the prop shaft) with a
                                        pulley and electric motor.</div>
                                      <div>I've seen this done by
                                        spinning the transmission&nbsp;INPU=
T
                                        shaft with a pulley and electric
                                        motor but not from the rear.</div>
                                      <div>Any chance of damaging the
                                        overdrive since the overrunning
                                        clutch is only going to spin in
                                        the one direction, can it lock
                                        up the overdrive?</div>
                                      <div>Thanks in advance</div>
                                      <div>Glenn</div>
                                      <div><br clear=3D"none">
                                      </div>
                                    </div>
                                  </div>
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580742fyiv7831776079yqtfd28886">
   =20
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------=_Part_3882398_171955985.1577220517947--

--===============6655702153536252016==
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--===============6655702153536252016==--

---

From: Greg Blake via Fot <[email-masked]>
Date: Tue, 24 Dec 2019 18:00:23 -0600

--===============6792754312895486754==
Content-Transfer-Encoding: 7bit

--Apple-Mail-96A194D5-E2D1-426F-88D1-F35F2DDAEE2E
	charset=utf-8
Content-Transfer-Encoding: quoted-printable

Whenever you start to spin it=E2=80=99s two feet in. I=E2=80=99ve been in a f=
ew situations where other drivers have tried to save a spin by not following=
 this advice and they always come rolling across the track backwards followi=
ng an unpredictable path usually collecting a few unsuspecting racers along t=
he way.  Always go two feet in.=20

Sent from my iPhone

> On Dec 24, 2019, at 12:50 PM, David Gott <[email-masked]> wrote:
>=20
> =EF=BB=BF Speaking of spinning the OD backwards, which it won=E2=80=99t do=
, what happens if you spin the car while overdrive is engaged?   Probably my=
 biggest concern for running one of these in a race car...   I was thinking I=
=E2=80=99d use it on track and maybe autocross, but I think that is ill advi=
sed now that I bring up that question.   Has anyone ever spun and rolled bac=
kwards, with OD engaged?
> On Tuesday, December 24, 2019, 12:47 PM, Greg Blake <[email-masked]=
m> wrote:
>=20
> If this is for a race car, you might consider shiming the accumulator spri=
ng to get closer to 500psi.=20
>=20
> Sent from my iPhone
>=20
>>> On Dec 24, 2019, at 10:51 AM, David Gott via Fot <[email-masked]> wr=
ote:
>>>=20
>> =EF=BB=BF I was able to test my overdrive by chucking a 1/2=E2=80=9D elec=
tric drill on the input shaft and turning the whole transmission.  (Make sur=
e to spin the right direction!). Pretty sure I used 4th gear.   I was able t=
o determine that my OD pressure is at 350 psi, so I=E2=80=99ll have to shim t=
he spring I guess.
>> Secondary question; the OD seemed to stick on me, but I did not have a lo=
ad on the output flange, due to being on the bench; I=E2=80=99m assuming thi=
s might be an issue?  Or would a load coax the OD to releasing as appropriat=
e?
>> On Tuesday, December 24, 2019, 11:25 AM, Jack Wheeler via Fot <fot@autox.=
>>=20
>> Jack
>>=20
>> On Monday, December 23, 2019, 10:05:53 PM EST, Glenn Franco via Fot <fot@=
autox.team.net> wrote:
>>=20
>>=20
>> Merry Christmas
>> Quick Question
>> A friend of mine started testing his A-Type Overdrives by back spinning t=
he output flange (to the prop shaft) with a pulley and electric motor.
>> I've seen this done by spinning the transmission INPUT shaft with a pulle=
y and electric motor but not from the rear.
>> Any chance of damaging the overdrive since the overrunning clutch is only=
 going to spin in the one direction, can it lock up the overdrive?
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/jwheeler194=
[email-masked]
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--Apple-Mail-96A194D5-E2D1-426F-88D1-F35F2DDAEE2E
	charset=utf-8
Content-Transfer-Encoding: quoted-printable

<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">Whenever you start to spin it=E2=80=99s two=
 feet in. I=E2=80=99ve been in a few situations where other drivers have tri=
ed to save a spin by not following this advice and they always come rolling a=
cross the track backwards following an unpredictable path usually collecting=
 a few unsuspecting racers along the way. &nbsp;Always go two feet in.&nbsp;=
<br><br><div dir=3D"ltr">Sent from my iPhone</div><div dir=3D"ltr"><br><bloc=
kquote type=3D"cite">On Dec 24, 2019, at 12:50 PM, David Gott &lt;triumphsix=
@yahoo.com&gt; wrote:<br><br></blockquote></div><blockquote type=3D"cite"><d=
iv dir=3D"ltr">=EF=BB=BF<!--[if gte mso 9]><xml><o:OfficeDocumentSettings><o=
:AllowPNG/><o:PixelsPerInch>96</o:PixelsPerInch></o:OfficeDocumentSettings><=
/xml><![endif]-->
Speaking of spinning the OD backwards, which it won=E2=80=99t do, what happe=
ns if you spin the car while overdrive is engaged? &nbsp; Probably my bigges=
t concern for running one of these in a race car... &nbsp; I was thinking I=E2=
=80=99d use it on track and maybe autocross, but I think that is ill advised=
 now that I bring up that question. &nbsp; Has anyone ever spun and rolled b=
ackwards, with OD engaged?<div><br></div><div>Dave G<br><br><br><a href=3D"h=
ttps://overview.mail.yahoo.com/?.src=3DiOS">Sent from Yahoo Mail for iPhone<=
/a><br><br><p class=3D"yahoo-quoted-begin" style=3D"font-size: 15px; color: #=
715FFA; padding-top: 15px; margin-top: 0">On Tuesday, December 24, 2019, 12:=
47 PM, Greg Blake &lt;[email-masked]&gt; wrote:</p><blockquote class=
=3D"iosymail"><div id=3D"yiv0957845862"><div>If this is for a race car, you m=
ight consider shiming the accumulator spring to get closer to 500psi.&nbsp;<=
br clear=3D"none"><br clear=3D"none"><div dir=3D"ltr">Sent from my iPhone</d=
iv><div dir=3D"ltr"><br clear=3D"none"><blockquote type=3D"cite">On Dec 24, 2=
019, at 10:51 AM, David Gott via Fot &lt;[email-masked]&gt; wrote:<br cl=
ear=3D"none"><br clear=3D"none"></blockquote></div><blockquote type=3D"cite"=
I was able to test my overdrive by chucking a 1/2=E2=80=9D electric drill on=
 the input shaft and turning the whole transmission. &nbsp;(Make sure to spi=
n the right direction!). Pretty sure I used 4th gear. &nbsp; I was able to d=
etermine that my OD pressure is at 350 psi, so I=E2=80=99ll have to shim the=
 spring I guess.<div><br clear=3D"none"></div><div>Secondary question; the O=
D seemed to stick on me, but I did not have a load on the output flange, due=
 to being on the bench; I=E2=80=99m assuming this might be an issue? &nbsp;O=
r would a load coax the OD to releasing as appropriate?</div><div><br clear=3D=
"none"></div><div>Hopefully I don=E2=80=99t hijack your thread too much!</di=
v><div><br clear=3D"none"></div><div>Thanks,</div><div>Dave Gott<br clear=3D=
"none">62 TR4 (=E2=80=9CA=E2=80=9D type on the bench)<br clear=3D"none"><br c=
lear=3D"none"><a rel=3D"nofollow" shape=3D"rect" target=3D"_blank" href=3D"h=
ttps://overview.mail.yahoo.com/?.src=3DiOS">Sent from Yahoo Mail for iPhone<=
/a><br clear=3D"none"><br clear=3D"none"><p class=3D"yiv0957845862yahoo-quot=
ed-begin" style=3D"font-size:15px;color:#715FFA;padding-top:15px;margin-top:=
0;">On Tuesday, December 24, 2019, 11:25 AM, Jack Wheeler via Fot &lt;fot@au=
tox.team.net&gt; wrote:</p><blockquote class=3D"yiv0957845862iosymail"><div i=
d=3D"yiv0957845862"><div><div class=3D"yiv0957845862ydp7dbf0fe6yahoo-style-w=
rap" style=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-=
size:13px;"><div></div>
        <div dir=3D"ltr">I have tested overdrives like this for years.&nbsp;=
 My drive motor only spins in one direction, which makes sure the output sha=
ft only spins in the same direction the shaft would be spinning when the car=
 is driven in a forward speed.&nbsp; Therefore, I don't know what would happ=
en if you spun it in the wrong direction.</div><div dir=3D"ltr"><br clear=3D=
"none"></div><div dir=3D"ltr">Jack<br clear=3D"none"></div><div><br clear=3D=
"none"></div>
       =20
        </div><div class=3D"yiv0957845862ydpfd023d29yahoo_quoted" id=3D"yiv0=
957845862ydpfd023d29yahoo_quoted_7545444271">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, sa=
ns-serif;font-size:13px;color:#26282a;">
               =20
                <div class=3D"yiv0957845862yqt9559972606" id=3D"yiv095784586=
2yqt71890"><div>
                    On Monday, December 23, 2019, 10:05:53 PM EST, Glenn Fra=
nco via Fot &lt;[email-masked]&gt; wrote:
                </div>
                <div><br clear=3D"none"></div>
                <div><br clear=3D"none"></div>
                <div><div id=3D"yiv0957845862ydpfd023d29yiv2459643629"><div d=
ir=3D"ltr"><div>Merry Christmas</div><div>Quick Question</div><div>A friend o=
f mine started testing his A-Type Overdrives by back spinning the output fla=
nge (to the prop shaft) with a pulley and electric motor.</div><div>I've see=
n this done by spinning the transmission&nbsp;INPUT shaft with a pulley and e=
lectric motor but not from the rear.</div><div>Any chance of damaging the ov=
erdrive since the overrunning clutch is only going to spin in the one direct=
ion, can it lock up the overdrive?</div><div>Thanks in advance</div><div>Gle=
nn</div><div><br clear=3D"none"></div></div></div>__________________________=
_____________________<br clear=3D"none"><a rel=3D"nofollow" shape=3D"rect" y=
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<span>_______________________________________________</span><br clear=3D"non=
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---

From: Bill Tobin via Fot <[email-masked]>
Date: Tue, 24 Dec 2019 19:07:16 -0500

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Another variation on the saying: If you're going around it's both feet down.

Merry Christmas.

Bill

On 12/24/2019 7:00 PM, Greg Blake via Fot wrote:
> Whenever you start to spin it’s two feet in. I’ve been in a few 
> situations where other drivers have tried to save a spin by not 
> following this advice and they always come rolling across the track 
> backwards following an unpredictable path usually collecting a few 
> unsuspecting racers along the way.  Always go two feet in.
>
> Sent from my iPhone
>
>> happens if you spin the car while overdrive is engaged? Probably my 
>> biggest concern for running one of these in a race car...   I was 
>> thinking I’d use it on track and maybe autocross, but I think that is 
>> ill advised now that I bring up that question.   Has anyone ever spun 
>> and rolled backwards, with OD engaged?
>>
>> Dave G
>>
>>
>>>      (Make sure to spin the right direction!). Pretty sure I used
>>>     4th gear.   I was able to determine that my OD pressure is at
>>>     350 psi, so I’ll have to shim the spring I guess.
>>>
>>>         I have tested overdrives like this for years.  My drive
>>>         motor only spins in one direction, which makes sure the
>>>         output shaft only spins in the same direction the shaft
>>>         would be spinning when the car is driven in a forward
>>>         speed.  Therefore, I don't know what would happen if you
>>>         spun it in the wrong direction.
>>>
>>>         Jack
>>>
>>>         <http://autox.team.net/archive
>>>         >http://www.team.net/pipermail/fot
>>>         Unsubscribe/Manage:
>>>         <http://autox.team.net/archive
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>>>
>>>     Unsubscribe/Manage:
> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/[email-masked]
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<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  </head>
  <body text="#000000" bgcolor="#FFFFFF">
    <p>Another variation on the saying: If you're going around it's both
      feet down.</p>
    <p>Merry Christmas.</p>
    <p>Bill<br>
    </p>
    <div class="moz-cite-prefix">On 12/24/2019 7:00 PM, Greg Blake via
      Fot wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:[email-masked]">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      Whenever you start to spin it’s two feet in. I’ve been in a few
      situations where other drivers have tried to save a spin by not
      following this advice and they always come rolling across the
      track backwards following an unpredictable path usually collecting
      a few unsuspecting racers along the way.  Always go two feet in. <br>
      <br>
      <div dir="ltr">Sent from my iPhone</div>
      <div dir="ltr"><br>
        <blockquote type="cite">On Dec 24, 2019, at 12:50 PM, David Gott
          <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a> wrote:<br>
          <br>
        </blockquote>
      </div>
      <blockquote type="cite">
        <div dir="ltr"><!--[if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]-->
          Speaking of spinning the OD backwards, which it won’t do, what
          happens if you spin the car while overdrive is engaged?  
          Probably my biggest concern for running one of these in a race
          car...   I was thinking I’d use it on track and maybe
          autocross, but I think that is ill advised now that I bring up
          that question.   Has anyone ever spun and rolled backwards,
          with OD engaged?
          <div><br>
          </div>
          <div>Dave G<br>
            <br>
            <br>
            <a href="https://overview.mail.yahoo.com/?.src=iOS"
              moz-do-not-send="true">Sent from Yahoo Mail for iPhone</a><br>
            <br>
            <p class="yahoo-quoted-begin" style="font-size: 15px; color:
              #715FFA; padding-top: 15px; margin-top: 0">On Tuesday,
              December 24, 2019, 12:47 PM, Greg Blake
              <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a> wrote:</p>
            <blockquote class="iosymail">
              <div id="yiv0957845862">
                <div>If this is for a race car, you might consider
                  shiming the accumulator spring to get closer to
                  500psi. <br clear="none">
                  <br clear="none">
                  <div dir="ltr">Sent from my iPhone</div>
                  <div dir="ltr"><br clear="none">
                    <blockquote type="cite">On Dec 24, 2019, at 10:51
                      AM, David Gott via Fot <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a>
                      wrote:<br clear="none">
                      <br clear="none">
                    </blockquote>
                  </div>
                  <blockquote type="cite">
                    <div dir="ltr">
                      I was able to test my overdrive by chucking a 1/2”
                      electric drill on the input shaft and turning the
                      whole transmission.  (Make sure to spin the right
                      direction!). Pretty sure I used 4th gear.   I was
                      able to determine that my OD pressure is at 350
                      psi, so I’ll have to shim the spring I guess.
                      <div><br clear="none">
                      </div>
                      <div>Secondary question; the OD seemed to stick on
                        me, but I did not have a load on the output
                        flange, due to being on the bench; I’m assuming
                        this might be an issue?  Or would a load coax
                        the OD to releasing as appropriate?</div>
                      <div><br clear="none">
                      </div>
                      <div>Hopefully I don’t hijack your thread too
                        much!</div>
                      <div><br clear="none">
                      </div>
                      <div>Thanks,</div>
                      <div>Dave Gott<br clear="none">
                        62 TR4 (“A” type on the bench)<br clear="none">
                        <br clear="none">
                        <a rel="nofollow" shape="rect" target="_blank"
                          href="https://overview.mail.yahoo.com/?.src=iOS"
                          moz-do-not-send="true">Sent from Yahoo Mail
                          for iPhone</a><br clear="none">
                        <br clear="none">
                        <p class="yiv0957845862yahoo-quoted-begin"
                          style="font-size:15px;color:#715FFA;padding-top:15px;margin-top:0;">On
                          Tuesday, December 24, 2019, 11:25 AM, Jack
                          Wheeler via Fot <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a>
                          wrote:</p>
                        <blockquote class="yiv0957845862iosymail">
                          <div id="yiv0957845862">
                            <div>
                              <div
                                class="yiv0957845862ydp7dbf0fe6yahoo-style-wrap"
                                style="font-family:Helvetica Neue,
                                Helvetica, Arial,
                                sans-serif;font-size:13px;">
                                <div dir="ltr">I have tested overdrives
                                  like this for years.  My drive motor
                                  only spins in one direction, which
                                  makes sure the output shaft only spins
                                  in the same direction the shaft would
                                  be spinning when the car is driven in
                                  a forward speed.  Therefore, I don't
                                  know what would happen if you spun it
                                  in the wrong direction.</div>
                                <div dir="ltr"><br clear="none">
                                </div>
                                <div dir="ltr">Jack<br clear="none">
                                </div>
                                <div><br clear="none">
                                </div>
                              </div>
                              <div
                                class="yiv0957845862ydpfd023d29yahoo_quoted"
id="yiv0957845862ydpfd023d29yahoo_quoted_7545444271">
                                <div style="font-family:'Helvetica
                                  Neue', Helvetica, Arial,
                                  sans-serif;font-size:13px;color:#26282a;">
                                  <div
                                    class="yiv0957845862yqt9559972606"
                                    id="yiv0957845862yqt71890">
                                    <div> On Monday, December 23, 2019,
                                      10:05:53 PM EST, Glenn Franco via
                                      Fot <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a>
                                      wrote: </div>
                                    <div><br clear="none">
                                    </div>
                                    <div><br clear="none">
                                    </div>
                                    <div>
                                      <div
                                        id="yiv0957845862ydpfd023d29yiv2459643629">
                                        <div dir="ltr">
                                          <div>Merry Christmas</div>
                                          <div>Quick Question</div>
                                          <div>A friend of mine started
                                            testing his A-Type
                                            Overdrives by back spinning
                                            the output flange (to the
                                            prop shaft) with a pulley
                                            and electric motor.</div>
                                          <div>I've seen this done by
                                            spinning the
                                            transmission INPUT shaft
                                            with a pulley and electric
                                            motor but not from the rear.</div>
                                          <div>Any chance of damaging
                                            the overdrive since the
                                            overrunning clutch is only
                                            going to spin in the one
                                            direction, can it lock up
                                            the overdrive?</div>
                                          <div>Thanks in advance</div>
                                          <div>Glenn</div>
                                          <div><br clear="none">
                                          </div>
                                        </div>
                                      </div>
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      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <pre class="moz-quote-pre" wrap="">_______________________________________________
<a class="moz-txt-link-abbreviated" href="mailto:[email-masked]">[email-masked]</a>

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From: Jack Wheeler via Fot <[email-masked]>
Date: Wed, 25 Dec 2019 02:03:58 +0000 (UTC)

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 I can attest to that.=C2=A0 Just under the bridge at Road Atlanta (Runoffs=
 1993) a Porsche 914 spun in front of me, then came whipping across the tra=
ck backwards, right in front of me.=C2=A0 At least 5 cars involved, and the=
y red flagged the race.=C2=A0 I went both feet in and the overdrive was abo=
ut the only piece of my car that remained in tact after that!=C2=A0 There a=
re some videos around.=C2=A0 Ouch!!

Jack

    On Tuesday, December 24, 2019, 7:00:26 PM EST, Greg Blake <gblake58tr3@=
icloud.com> wrote: =20
=20
 Whenever you start to spin it=E2=80=99s two feet in. I=E2=80=99ve been in =
a few situations where other drivers have tried to save a spin by not follo=
wing this advice and they always come rolling across the track backwards fo=
llowing an unpredictable path usually collecting a few unsuspecting racers =
along the way. =C2=A0Always go two feet in.=C2=A0

Sent from my iPhone

=EF=BB=BFSpeaking of spinning the OD backwards, which it won=E2=80=99t do, =
what happens if you spin the car while overdrive is engaged? =C2=A0 Probabl=
y my biggest concern for running one of these in a race car... =C2=A0 I was=
 thinking I=E2=80=99d use it on track and maybe autocross, but I think that=
 is ill advised now that I bring up that question. =C2=A0 Has anyone ever s=
pun and rolled backwards, with OD engaged?
Dave G

Sent from my iPhone

 =20
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<html><head></head><body><div class=3D"ydp7b6b9b5yahoo-style-wrap" style=3D=
"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;">=
<div></div>
        <div dir=3D"ltr" data-setdir=3D"false">I can attest to that.&nbsp; =
Just under the bridge at Road Atlanta (Runoffs 1993) a Porsche 914 spun in =
front of me, then came whipping across the track backwards, right in front =
of me.&nbsp; At least 5 cars involved, and they red flagged the race.&nbsp;=
 I went both feet in and the overdrive was about the only piece of my car t=
hat remained in tact after that!&nbsp; There are some videos around.&nbsp; =
Ouch!!<br></div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=
=3D"ltr" data-setdir=3D"false">Jack<br></div><div><br></div>
       =20
        </div><div id=3D"ydp7a459152yahoo_quoted_7456430901" class=3D"ydp7a=
459152yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Tuesday, December 24, 2019, 7:00:26 PM EST, Greg Bla=
ke &lt;[email-masked]&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id=3D"ydp7a459152yiv6957167361"><div>Whenever you=
 start to spin it=E2=80=99s two feet in. I=E2=80=99ve been in a few situati=
ons where other drivers have tried to save a spin by not following this adv=
ice and they always come rolling across the track backwards following an un=
predictable path usually collecting a few unsuspecting racers along the way=
. &nbsp;Always go two feet in.&nbsp;<br clear=3D"none"><br clear=3D"none"><=
div dir=3D"ltr">Sent from my iPhone</div><div dir=3D"ltr"><div class=3D"ydp=
7a459152yiv6957167361yqt7481193174" id=3D"ydp7a459152yiv6957167361yqtfd3925=
0"><br clear=3D"none"><blockquote type=3D"cite">On Dec 24, 2019, at 12:50 P=
M, David Gott &lt;[email-masked]&gt; wrote:<br clear=3D"none"><br cle=
ar=3D"none"></blockquote></div></div><div class=3D"ydp7a459152yiv6957167361=
yqt7481193174" id=3D"ydp7a459152yiv6957167361yqtfd42248"><blockquote type=
=3D"cite"><div dir=3D"ltr">=EF=BB=BF
Speaking of spinning the OD backwards, which it won=E2=80=99t do, what happ=
ens if you spin the car while overdrive is engaged? &nbsp; Probably my bigg=
est concern for running one of these in a race car... &nbsp; I was thinking=
 I=E2=80=99d use it on track and maybe autocross, but I think that is ill a=
dvised now that I bring up that question. &nbsp; Has anyone ever spun and r=
olled backwards, with OD engaged?<div><br clear=3D"none"></div><div>Dave G<=
br clear=3D"none"><br clear=3D"none"><br clear=3D"none"><a shape=3D"rect" h=
ref=3D"https://overview.mail.yahoo.com/?.src=3DiOS" rel=3D"nofollow" target=
=3D"_blank">Sent from Yahoo Mail for iPhone</a><br clear=3D"none"><br clear=
=3D"none"><p class=3D"ydp7a459152yiv6957167361yahoo-quoted-begin" style=3D"=
font-size:15px;color:#715FFA;padding-top:15px;margin-top:0;">On Tuesday, De=
cember 24, 2019, 12:47 PM, Greg Blake &lt;[email-masked]&gt; wrote:=
</p><blockquote class=3D"ydp7a459152yiv6957167361iosymail"><div id=3D"ydp7a=
459152yiv6957167361"><div>If this is for a race car, you might consider shi=
ming the accumulator spring to get closer to 500psi.&nbsp;<br clear=3D"none=
"><br clear=3D"none"><div dir=3D"ltr">Sent from my iPhone</div><div dir=3D"=
ltr"><br clear=3D"none"><blockquote type=3D"cite">On Dec 24, 2019, at 10:51=
 AM, David Gott via Fot &lt;[email-masked]&gt; wrote:<br clear=3D"none"=
><br clear=3D"none"></blockquote></div><blockquote type=3D"cite"><div dir=
=3D"ltr">=EF=BB=BF
I was able to test my overdrive by chucking a 1/2=E2=80=9D electric drill o=
n the input shaft and turning the whole transmission. &nbsp;(Make sure to s=
pin the right direction!). Pretty sure I used 4th gear. &nbsp; I was able t=
o determine that my OD pressure is at 350 psi, so I=E2=80=99ll have to shim=
 the spring I guess.<div><br clear=3D"none"></div><div>Secondary question; =
the OD seemed to stick on me, but I did not have a load on the output flang=
e, due to being on the bench; I=E2=80=99m assuming this might be an issue? =
&nbsp;Or would a load coax the OD to releasing as appropriate?</div><div><b=
r clear=3D"none"></div><div>Hopefully I don=E2=80=99t hijack your thread to=
o much!</div><div><br clear=3D"none"></div><div>Thanks,</div><div>Dave Gott=
<br clear=3D"none">62 TR4 (=E2=80=9CA=E2=80=9D type on the bench)<br clear=
=3D"none"><br clear=3D"none"><a shape=3D"rect" href=3D"https://overview.mai=
l.yahoo.com/?.src=3DiOS" rel=3D"nofollow" target=3D"_blank">Sent from Yahoo=
 Mail for iPhone</a><br clear=3D"none"><br clear=3D"none"><p class=3D"ydp7a=
459152yiv6957167361yahoo-quoted-begin" style=3D"font-size:15px;color:#715FF=
A;padding-top:15px;margin-top:0;">On Tuesday, December 24, 2019, 11:25 AM, =
Jack Wheeler via Fot &lt;[email-masked]&gt; wrote:</p><blockquote class=
=3D"ydp7a459152yiv6957167361iosymail"><div id=3D"ydp7a459152yiv6957167361">=
<div><div class=3D"ydp7a459152yiv6957167361ydp7dbf0fe6yahoo-style-wrap" sty=
le=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13=
px;"><div></div>
        <div dir=3D"ltr">I have tested overdrives like this for years.&nbsp=
; My drive motor only spins in one direction, which makes sure the output s=
haft only spins in the same direction the shaft would be spinning when the =
car is driven in a forward speed.&nbsp; Therefore, I don't know what would =
happen if you spun it in the wrong direction.</div><div dir=3D"ltr"><br cle=
ar=3D"none"></div><div dir=3D"ltr">Jack<br clear=3D"none"></div><div><br cl=
ear=3D"none"></div>
       =20
        </div><div class=3D"ydp7a459152yiv6957167361ydpfd023d29yahoo_quoted=
" id=3D"ydp7a459152yiv6957167361ydpfd023d29yahoo_quoted_7545444271">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div class=3D"ydp7a459152yiv6957167361yqt9559972606" id=3D"=
ydp7a459152yiv6957167361yqt71890"><div>
                    On Monday, December 23, 2019, 10:05:53 PM EST, Glenn Fr=
anco via Fot &lt;[email-masked]&gt; wrote:
                </div>
                <div><br clear=3D"none"></div>
                <div><br clear=3D"none"></div>
                <div><div id=3D"ydp7a459152yiv6957167361ydpfd023d29yiv24596=
43629"><div dir=3D"ltr"><div>Merry Christmas</div><div>Quick Question</div>=
<div>A friend of mine started testing his A-Type Overdrives by back spinnin=
g the output flange (to the prop shaft) with a pulley and electric motor.</=
div><div>I've seen this done by spinning the transmission&nbsp;INPUT shaft =
with a pulley and electric motor but not from the rear.</div><div>Any chanc=
e of damaging the overdrive since the overrunning clutch is only going to s=
pin in the one direction, can it lock up the overdrive?</div><div>Thanks in=
 advance</div><div>Glenn</div><div><br clear=3D"none"></div></div></div>___=
____________________________________________<br clear=3D"none"><a shape=3D"=
rect" href=3D"mailto:[email-masked]" rel=3D"nofollow" target=3D"_blank"=
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ct" href=3D"http://www.fot-racing.com" rel=3D"nofollow" target=3D"_blank">h=
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        </div></div></div><div class=3D"ydp7a459152yiv6957167361yqt95599726=
06" id=3D"ydp7a459152yiv6957167361yqt09620">_______________________________=
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ox.team.net" rel=3D"nofollow" target=3D"_blank">[email-masked]</a><br c=
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e"><br clear=3D"none"></div></div><div class=3D"ydp7a459152yiv6957167361yqt=
8286556591" id=3D"ydp7a459152yiv6957167361yqtfd00235"><blockquote></blockqu=
ote></div></blockquote></div><div class=3D"ydp7a459152yiv6957167361yqt82865=
56591" id=3D"ydp7a459152yiv6957167361yqtfd45638">
<span>_______________________________________________</span><br clear=3D"no=
ne"><span>[email-masked]</span><br clear=3D"none"><span></span><br clea=
r=3D"none"><span>http://www.fot-racing.com</span><br clear=3D"none"><span><=
/span><br clear=3D"none"><span>Donate: http://www.team.net/donate.html</spa=
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anage: http://autox.team.net/mailman/options/fot/[email-masked]</sp=
an><div class=3D"ydp7a459152yiv6957167361yqt8286556591" id=3D"ydp7a459152yi=
v6957167361yqtfd71519"><br clear=3D"none"><span></span><br clear=3D"none"><=
span></span><br clear=3D"none"></div></div></blockquote></div></div><blockq=
uote></blockquote></blockquote></div>
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From: marty via Fot <[email-masked]>
Date: Thu, 26 Dec 2019 01:57:29 +0000

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From: Tony Drews via Fot <[email-masked]>
Date: Wed, 25 Dec 2019 23:38:51 -0600

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Another two feet in video - skip to about 2:45.  This has nothing to do 
with the original Overdrive question, but shows how hard braking keeps 
the car from going in unpredictable directions... Took me a mental 
second to realize I wasn't going to catch this one, seems like much less 
than a second watching the video.

https://www.youtube.com/watch?v=SFQUYNxwIMI

Cheers, Tony

On 12/25/2019 7:57 PM, marty via Fot wrote:
> If you go to the 6:47 point in this video you can see John showing off 
> the brake and clutch to the floor technique. 🙂
>
> https://youtu.be/uyZNmn-5SpA
>
>
> Marty
>
> ------------------------------------------------------------------------
> *From:* Fot <[email-masked]> on behalf of John H. Hasty 
> via Fot <[email-masked]>
> *Sent:* Tuesday, December 24, 2019 2:18 PM
> *To:* David Gott <[email-masked]>
> *Cc:* FOT List <[email-masked]>; Glenn Franco <[email-masked]>
> *Subject:* Re: [Fot] A-Type Overdrive Testing
> Yep...brake & clutch to the floor... also can be wired to disengage 
> ... ask Steve Yott...
>
> Sent from my iPhone
>
>> On Dec 24, 2019, at 1:50 PM, David Gott via Fot <[email-masked]> 
>> wrote:
>>
>>>         <http://www.team.net/donate.html>
>> http://autox.team.net/mailman/options/fot/[email-masked]
>>
>>
>

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    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  </head>
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    <p>Another two feet in video - skip to about 2:45.  This has nothing
      to do with the original Overdrive question, but shows how hard
      braking keeps the car from going in unpredictable directions... 
      Took me a mental second to realize I wasn't going to catch this
      one, seems like much less than a second watching the video.</p>
    <p><a href="https://www.youtube.com/watch?v=SFQUYNxwIMI">https://www.youtube.com/watch?v=SFQUYNxwIMI</a></p>
    <p><br>
    </p>
    <p>Cheers, Tony<br>
    </p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">On 12/25/2019 7:57 PM, marty via Fot
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:[email-masked]">
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
      <div style="color: rgb(0, 0, 0); font-family:
        Calibri,Helvetica,sans-serif; font-size: 12pt;">
        <span>If you go to the 6:47 point in this video you can see John
          showing off the brake and clutch to the floor technique.
          <span id="🙂">🙂</span></span></div>
      <div style="color: rgb(0, 0, 0); font-family:
        Calibri,Helvetica,sans-serif; font-size: 12pt;">
        <span><br>
        </span></div>
      <div style="color: rgb(0, 0, 0); font-family:
        Calibri,Helvetica,sans-serif; font-size: 12pt;">
        <a id="LPlnk655470" href="https://youtu.be/uyZNmn-5SpA"
          moz-do-not-send="true">https://youtu.be/uyZNmn-5SpA</a></div>
      <div style="color: rgb(0, 0, 0); font-family:
        Calibri,Helvetica,sans-serif; font-size: 12pt;">
        <br>
      </div>
      <div style="color: rgb(0, 0, 0); font-family:
        Calibri,Helvetica,sans-serif; font-size: 12pt;">
        <br>
      </div>
      <div style="color: rgb(0, 0, 0); font-family:
        Calibri,Helvetica,sans-serif; font-size: 12pt;">
        Marty</div>
      <div style="color: rgb(0, 0, 0); font-family:
        Calibri,Helvetica,sans-serif; font-size: 12pt;">
        <span> </span></div>
      <div>
        <div style="color:rgb(0,0,0);
          font-family:Calibri,Helvetica,sans-serif; font-size:12pt">
          <br>
        </div>
        <hr tabindex="-1" style="display:inline-block; width:98%">
        <div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
            face="Calibri, sans-serif" color="#000000"><b>From:</b> Fot
            <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a> on behalf of John H.
            Hasty via Fot <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a><br>
            <b>Sent:</b> Tuesday, December 24, 2019 2:18 PM<br>
            <b>To:</b> David Gott <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a><br>
            <b>Cc:</b> FOT List <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a>; Glenn Franco
            <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a><br>
            <b>Subject:</b> Re: [Fot] A-Type Overdrive Testing</font>
          <div> </div>
        </div>
        <div dir="auto">Yep...brake &amp; clutch to the floor... also
          can be wired to disengage ... ask Steve Yott...<br>
          <br>
          <div dir="ltr">Sent from my iPhone</div>
          <div dir="ltr"><br>
            <blockquote type="cite">On Dec 24, 2019, at 1:50 PM, David
              Gott via Fot <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a> wrote:<br>
              <br>
            </blockquote>
          </div>
          <blockquote type="cite">
            <div dir="ltr"> Speaking of spinning the OD backwards,
              which it won’t do, what happens if you spin the car while
              overdrive is engaged?   Probably my biggest concern for
              running one of these in a race car...   I was thinking I’d
              use it on track and maybe autocross, but I think that is
              ill advised now that I bring up that question.   Has
              anyone ever spun and rolled backwards, with OD engaged?
              <div><br>
              </div>
              <div>Dave G<br>
                <br>
                <br>
                <a href="https://overview.mail.yahoo.com/?.src=iOS"
                  moz-do-not-send="true">Sent from Yahoo Mail for iPhone</a><br>
                <br>
                <p class="x_yahoo-quoted-begin" style="font-size:15px;
                  color:#715FFA; padding-top:15px; margin-top:0">
                  On Tuesday, December 24, 2019, 12:47 PM, Greg Blake
                  <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a> wrote:</p>
                <blockquote class="x_iosymail">
                  <div id="x_yiv0957845862">
                    <div>If this is for a race car, you might consider
                      shiming the accumulator spring to get closer to
                      500psi. <br clear="none">
                      <br clear="none">
                      <div dir="ltr">Sent from my iPhone</div>
                      <div dir="ltr"><br clear="none">
                        <blockquote type="cite">On Dec 24, 2019, at
                          10:51 AM, David Gott via Fot
                          <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a> wrote:<br
                            clear="none">
                          <br clear="none">
                        </blockquote>
                      </div>
                      <blockquote type="cite">
                        <div dir="ltr"> I was able to test my overdrive
                          by chucking a 1/2” electric drill on the input
                          shaft and turning the whole transmission.
                           (Make sure to spin the right direction!).
                          Pretty sure I used 4th gear.   I was able to
                          determine that my OD pressure is at 350 psi,
                          so I’ll have to shim the spring I guess.
                          <div><br clear="none">
                          </div>
                          <div>Secondary question; the OD seemed to
                            stick on me, but I did not have a load on
                            the output flange, due to being on the
                            bench; I’m assuming this might be an issue?
                             Or would a load coax the OD to releasing as
                            appropriate?</div>
                          <div><br clear="none">
                          </div>
                          <div>Hopefully I don’t hijack your thread too
                            much!</div>
                          <div><br clear="none">
                          </div>
                          <div>Thanks,</div>
                          <div>Dave Gott<br clear="none">
                            62 TR4 (“A” type on the bench)<br
                              clear="none">
                            <br clear="none">
                            <a
                              href="https://overview.mail.yahoo.com/?.src=iOS"
                              target="_blank" rel="nofollow"
                              shape="rect" moz-do-not-send="true">Sent
                              from Yahoo Mail for iPhone</a><br
                              clear="none">
                            <br clear="none">
                            <p class="x_yiv0957845862yahoo-quoted-begin"
                              style="font-size:15px; color:#715FFA;
                              padding-top:15px; margin-top:0">
                              On Tuesday, December 24, 2019, 11:25 AM,
                              Jack Wheeler via Fot
                              <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a> wrote:</p>
                            <blockquote class="x_yiv0957845862iosymail">
                              <div id="x_yiv0957845862">
                                <div>
                                  <div
                                    class="x_yiv0957845862ydp7dbf0fe6yahoo-style-wrap"
                                    style="font-family:Helvetica
                                    Neue,Helvetica,Arial,sans-serif;
                                    font-size:13px">
                                    <div dir="ltr">I have tested
                                      overdrives like this for years. 
                                      My drive motor only spins in one
                                      direction, which makes sure the
                                      output shaft only spins in the
                                      same direction the shaft would be
                                      spinning when the car is driven in
                                      a forward speed.  Therefore, I
                                      don't know what would happen if
                                      you spun it in the wrong
                                      direction.</div>
                                    <div dir="ltr"><br clear="none">
                                    </div>
                                    <div dir="ltr">Jack<br clear="none">
                                    </div>
                                    <div><br clear="none">
                                    </div>
                                  </div>
                                  <div
                                    class="x_yiv0957845862ydpfd023d29yahoo_quoted"
id="x_yiv0957845862ydpfd023d29yahoo_quoted_7545444271">
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                                      Neue',Helvetica,Arial,sans-serif;
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                                      <div
                                        class="x_yiv0957845862yqt9559972606"
                                        id="x_yiv0957845862yqt71890">
                                        <div>On Monday, December 23,
                                          2019, 10:05:53 PM EST, Glenn
                                          Franco via Fot
                                          <a class="moz-txt-link-rfc2396E" href="mailto:[email-masked]">&lt;[email-masked]&gt;</a>
                                          wrote:
                                        </div>
                                        <div><br clear="none">
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                                        </div>
                                        <div>
                                          <div
                                            id="x_yiv0957845862ydpfd023d29yiv2459643629">
                                            <div dir="ltr">
                                              <div>Merry Christmas</div>
                                              <div>Quick Question</div>
                                              <div>A friend of mine
                                                started testing his
                                                A-Type Overdrives by
                                                back spinning the output
                                                flange (to the prop
                                                shaft) with a pulley and
                                                electric motor.</div>
                                              <div>I've seen this done
                                                by spinning the
                                                transmission INPUT shaft
                                                with a pulley and
                                                electric motor but not
                                                from the rear.</div>
                                              <div>Any chance of
                                                damaging the overdrive
                                                since the overrunning
                                                clutch is only going to
                                                spin in the one
                                                direction, can it lock
                                                up the overdrive?</div>
                                              <div>Thanks in advance</div>
                                              <div>Glenn</div>
                                              <div><br clear="none">
                                              </div>
                                            </div>
                                          </div>
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
<a class="moz-txt-link-abbreviated" href="mailto:[email-masked]">[email-masked]</a>

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--------------A29E1A74E9DFFD0CB48AF8C4--

--===============0266181507282060326==
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--===============0266181507282060326==--

---

From: Chris Marx via Fot <[email-masked]>
Date: Thu, 26 Dec 2019 10:12:12 +0100

This is a multipart message in MIME format.

--===============0924305033430167613==
	boundary="----=_NextPart_000_0019_01D5BBD4.F1816E70"
Content-Language: de

This is a multipart message in MIME format.

------=_NextPart_000_0019_01D5BBD4.F1816E70
	charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

You did well Tony.

I really don=E2=80=99t  understand why people don=E2=80=99t lock their =
wheels when they spin.

If the wheels are rolling on a spin the car is doing funny things and =
nobody can predict where the car will be in a second.

With locked wheels the car is sliding in direction of inertia.

See how the F1 drivers do it. They lock the wheels and wait for the car =
to STAND STILL before they release the brakes.

=20

Most of the worst accidents happen with spinning cars getting T-boned.

The cause for this is no locked wheels until stand still.

=20

I don=E2=80=99t have good examples of myself as I spin rarely but maybe =
this one:

Cold Tires.

What I=E2=80=99m doing:

I was at slow speed with no grip on the back end caused by very low =
temperatures (36F) at the morning. =20

The back end stepped out and I slammed on the brakes. I saw the front =
heading for the tire wall.=20

I found it too expensive to crash the front end so still full on  the =
brakes I released the clutch and gave a sever dip on the throttle with =
the heal to turn the car against the direction I was coming. Brakes =
still on full lock until the car stood still.=20

The situation was to a degree under control. Happily the car was =
parallel to the wall and didn=E2=80=99t touch by about 10=E2=80=9D =
distance.

=20

https://www.youtube.com/watch?v=3DnRbIEeOSw4Y

=20

=20

Cheers

Chris

=20

Von: Fot <[email-masked]> Im Auftrag von Tony Drews via Fot
Gesendet: Donnerstag, 26. Dezember 2019 06:39
An: [email-masked]
Betreff: Re: [Fot] Brake and Clutch to the floor.

=20

Another two feet in video - skip to about 2:45.  This has nothing to do =
with the original Overdrive question, but shows how hard braking keeps =
the car from going in unpredictable directions...  Took me a mental =
second to realize I wasn't going to catch this one, seems like much less =
than a second watching the video.

https://www.youtube.com/watch?v=3DSFQUYNxwIMI

=20

Cheers, Tony

=20

If you go to the 6:47 point in this video you can see John showing off =
the brake and clutch to the floor technique. =F0=9F=99=82

=20

=20

=20

Marty

=20

=20

  _____ =20

<[email-masked]> on behalf of John H. Hasty via Fot  =
Sent: Tuesday, December 24, 2019 2:18 PM
Subject: Re: [Fot] A-Type Overdrive Testing=20

=20

Yep...brake & clutch to the floor... also can be wired to disengage ... =
ask Steve Yott...

Sent from my iPhone

On Dec 24, 2019, at 1:50 PM, David Gott via Fot  =

=EF=BB=BF Speaking of spinning the OD backwards, which it won=E2=80=99t =
do, what happens if you spin the car while overdrive is engaged?   =
Probably my biggest concern for running one of these in a race car...   =
I was thinking I=E2=80=99d use it on track and maybe autocross, but I =
think that is ill advised now that I bring up that question.   Has =
anyone ever spun and rolled backwards, with OD engaged?=20

=20

Dave G

Sent from Yahoo Mail for iPhone =
<https://overview.mail.yahoo.com/?.src=3DiOS>=20

On Tuesday, December 24, 2019, 12:47 PM, Greg Blake  =

If this is for a race car, you might consider shiming the accumulator =
spring to get closer to 500psi.=20

Sent from my iPhone

On Dec 24, 2019, at 10:51 AM, David Gott via Fot  =

=EF=BB=BF I was able to test my overdrive by chucking a 1/2=E2=80=9D =
electric drill on the input shaft and turning the whole transmission.  =
(Make sure to spin the right direction!). Pretty sure I used 4th gear.   =
I was able to determine that my OD pressure is at 350 psi, so =
I=E2=80=99ll have to shim the spring I guess.=20

=20

Secondary question; the OD seemed to stick on me, but I did not have a =
load on the output flange, due to being on the bench; I=E2=80=99m =
assuming this might be an issue?  Or would a load coax the OD to =
releasing as appropriate?

=20

=20

Thanks,

Dave Gott

Sent from Yahoo Mail for iPhone =
<https://overview.mail.yahoo.com/?.src=3DiOS>=20

On Tuesday, December 24, 2019, 11:25 AM, Jack Wheeler via Fot  =

I have tested overdrives like this for years.  My drive motor only spins =
in one direction, which makes sure the output shaft only spins in the =
same direction the shaft would be spinning when the car is driven in a =
forward speed.  Therefore, I don't know what would happen if you spun it =
in the wrong direction.

=20

Jack

=20

=20

=20

Merry Christmas

Quick Question

A friend of mine started testing his A-Type Overdrives by back spinning =
the output flange (to the prop shaft) with a pulley and electric motor.

I've seen this done by spinning the transmission INPUT shaft with a =
pulley and electric motor but not from the rear.

Any chance of damaging the overdrive since the overrunning clutch is =
only going to spin in the one direction, can it lock up the overdrive?

Thanks in advance

Glenn

=20

Archive: http://autox.team.net/archive  =
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Archive: http://autox.team.net/archive  =
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link=3Dblue vlink=3Dpurple><div class=3DWordSection1><p =
class=3DMsoNormal><span =
style=3D'color:windowtext;mso-fareast-language:EN-US'>You did well =
Tony.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'>I really =
don=E2=80=99t =C2=A0understand why people don=E2=80=99t lock their =
wheels when they spin.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'color:windowtext;mso-fareast-language:EN-US'>If =
the wheels are rolling on a spin the car is doing funny things and =
nobody can predict where the car will be in a =
second.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'>With locked wheels =
the car is sliding in direction of inertia.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'>See how the F1 =
drivers do it. They lock the wheels and wait for the car to STAND STILL =
before they release the brakes.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></=
span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'>Most of the worst =
accidents happen with spinning cars getting =
T-boned.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'>The cause for this =
is no locked wheels until stand still.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></=
span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'>I don=E2=80=99t =
have good examples of myself as I spin rarely but maybe this =
one:<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'>Cold =
Tires.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'>What I=E2=80=99m =
doing:<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'>I was at slow =
speed with no grip on the back end caused by very low temperatures (36F) =
at the morning. =C2=A0<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'color:windowtext;mso-fareast-language:EN-US'>The =
back end stepped out and I slammed on the brakes. I saw the front =
heading for the tire wall. <o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'>I found it too =
expensive to crash the front end so still full on=C2=A0 the brakes I =
released the clutch and gave a sever dip on the throttle with the heal =
to turn the car against the direction I was coming. Brakes still on full =
lock until the car stood still. <o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'>The situation was =
to a degree under control. Happily the car was parallel to the wall and =
didn=E2=80=99t touch by about 10=E2=80=9D =
distance.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></=
span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'><a =
href=3D"https://www.youtube.com/watch?v=3DnRbIEeOSw4Y">https://www.youtub=
e.com/watch?v=3DnRbIEeOSw4Y</a><o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></=
span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></=
span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'>Cheers<o:p></o:p></=
span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'>Chris<o:p></o:p></s=
pan></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'color:windowtext;mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></=
span></p><div><div style=3D'border:none;border-top:solid #E1E1E1 =
1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
style=3D'color:windowtext'>Von:</span></b><span =
style=3D'color:windowtext'> Fot &lt;[email-masked]&gt; <b>Im =
Auftrag von </b>Tony Drews via Fot<br><b>Gesendet:</b> Donnerstag, 26. =
Dezember 2019 06:39<br><b>An:</b> [email-masked]<br><b>Betreff:</b> =
Re: [Fot] Brake and Clutch to the =
floor.<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p>Another two feet in video - =
skip to about 2:45.&nbsp; This has nothing to do with the original =
Overdrive question, but shows how hard braking keeps the car from going =
in unpredictable directions...&nbsp; Took me a mental second to realize =
I wasn't going to catch this one, seems like much less than a second =
watching the video.<o:p></o:p></p><p><a =
href=3D"https://www.youtube.com/watch?v=3DSFQUYNxwIMI">https://www.youtub=
e.com/watch?v=3DSFQUYNxwIMI</a><o:p></o:p></p><p><o:p>&nbsp;</o:p></p><p>=
Cheers, Tony<o:p></o:p></p><p><o:p>&nbsp;</o:p></p><div><p =
class=3DMsoNormal>On 12/25/2019 7:57 PM, marty via Fot =
wrote:<o:p></o:p></p></div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p =
class=3DMsoNormal><span style=3D'font-size:12.0pt'>If you go to the 6:47 =
point in this video you can see John showing off the brake and clutch to =
the floor technique. </span><span =
style=3D'font-size:12.0pt;font-family:"Segoe UI =
Emoji",sans-serif'>&#128578;</span><span =
style=3D'font-size:12.0pt'><o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:12.0pt'><o:p>&nbsp;</o:p></span></p></div><div><p =
class=3DMsoNormal><span style=3D'font-size:12.0pt'><a =
href=3D"https://youtu.be/uyZNmn-5SpA">https://youtu.be/uyZNmn-5SpA</a><o:=
p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt'><o:p>&nbsp;</o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:12.0pt'><o:p>&nbsp;</o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:12.0pt'>Marty<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:12.0pt'>&nbsp;<o:p></o:p></span></p></div><div><div><p=
 class=3DMsoNormal><span =
style=3D'font-size:12.0pt'><o:p>&nbsp;</o:p></span></p></div><div =
class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><hr =
size=3D2 width=3D"98%" align=3Dcenter></div><div id=3DdivRplyFwdMsg><p =
class=3DMsoNormal><b>From:</b> Fot <a =
href=3D"mailto:[email-masked]">&lt;[email-masked]=
&gt;</a> on behalf of John H. Hasty via Fot <a =
href=3D"mailto:[email-masked]">&lt;[email-masked]&gt;</a><br><b>S=
ent:</b> Tuesday, December 24, 2019 2:18 PM<br><b>To:</b> David Gott <a =
href=3D"mailto:[email-masked]">&lt;[email-masked]&gt;</a><br>=
<b>Cc:</b> FOT List <a =
href=3D"mailto:[email-masked]">&lt;[email-masked]&gt;</a>; Glenn =
Franco <a =
href=3D"mailto:[email-masked]">&lt;[email-masked]&gt;</a><br>=
<b>Subject:</b> Re: [Fot] A-Type Overdrive Testing =
<o:p></o:p></p><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div></div><div><p =
class=3DMsoNormal style=3D'margin-bottom:12.0pt'>Yep...brake &amp; =
clutch to the floor... also can be wired to disengage ... ask Steve =
Yott...<o:p></o:p></p><div><p class=3DMsoNormal>Sent from my =
iPhone<o:p></o:p></p></div><div><p =
class=3DMsoNormal><br><br><o:p></o:p></p><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>On Dec 24, 2019, at 1:50 PM, David Gott =
via Fot <a =
href=3D"mailto:[email-masked]">&lt;[email-masked]&gt;</a> =
wrote:<o:p></o:p></p></blockquote></div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p =
class=3DMsoNormal>=EF=BB=BF Speaking of spinning the OD backwards, which =
it won=E2=80=99t do, what happens if you spin the car while overdrive is =
engaged? &nbsp; Probably my biggest concern for running one of these in =
a race car... &nbsp; I was thinking I=E2=80=99d use it on track and =
maybe autocross, but I think that is ill advised now that I bring up =
that question. &nbsp; Has anyone ever spun and rolled backwards, with OD =
engaged? <o:p></o:p></p><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>Dave G<br><br><br><a =
href=3D"https://overview.mail.yahoo.com/?.src=3DiOS">Sent from Yahoo =
Mail for iPhone</a><o:p></o:p></p><p class=3Dxyahoo-quoted-begin><span =
style=3D'font-size:11.5pt;color:#715FFA'>On Tuesday, December 24, 2019, =
12:47 PM, Greg Blake <a =
href=3D"mailto:[email-masked]">&lt;[email-masked]&gt;</a>=
 wrote:<o:p></o:p></span></p><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div =
id=3D"x_yiv0957845862"><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>If this is for a race car, you might =
consider shiming the accumulator spring to get closer to =
500psi.&nbsp;<o:p></o:p></p><div><p class=3DMsoNormal>Sent from my =
iPhone<o:p></o:p></p></div><div><p =
class=3DMsoNormal><br><br><o:p></o:p></p><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>On Dec 24, 2019, at 10:51 AM, David Gott =
via Fot <a =
href=3D"mailto:[email-masked]">&lt;[email-masked]&gt;</a> =
wrote:<o:p></o:p></p></blockquote></div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p =
class=3DMsoNormal>=EF=BB=BF I was able to test my overdrive by chucking =
a 1/2=E2=80=9D electric drill on the input shaft and turning the whole =
transmission. &nbsp;(Make sure to spin the right direction!). Pretty =
sure I used 4th gear. &nbsp; I was able to determine that my OD pressure =
is at 350 psi, so I=E2=80=99ll have to shim the spring I guess. =
<o:p></o:p></p><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>Secondary question; the OD seemed to stick on me, but =
I did not have a load on the output flange, due to being on the bench; =
I=E2=80=99m assuming this might be an issue? &nbsp;Or would a load coax =
the OD to releasing as appropriate?<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>Hopefully I don=E2=80=99t hijack your thread too =
much!<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>Thanks,<o:p></o:p></p></div><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>Dave Gott<br>62 TR4 (=E2=80=9CA=E2=80=9D =
type on the bench)<br><br><a =
href=3D"https://overview.mail.yahoo.com/?.src=3DiOS" =
target=3D"_blank">Sent from Yahoo Mail for iPhone</a><o:p></o:p></p><p =
class=3Dxyiv0957845862yahoo-quoted-begin><span =
style=3D'font-size:11.5pt;color:#715FFA'>On Tuesday, December 24, 2019, =
11:25 AM, Jack Wheeler via Fot <a =
href=3D"mailto:[email-masked]">&lt;[email-masked]&gt;</a> =
wrote:<o:p></o:p></span></p><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div =
id=3D"x_yiv0957845862"><div><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif'>I have =
tested overdrives like this for years.&nbsp; My drive motor only spins =
in one direction, which makes sure the output shaft only spins in the =
same direction the shaft would be spinning when the car is driven in a =
forward speed.&nbsp; Therefore, I don't know what would happen if you =
spun it in the wrong direction.<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif'><o:p>&nbsp;=
</o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif'>Jack<o:p></=
o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif'><o:p>&nbsp;=
</o:p></span></p></div></div><div =
id=3D"x_yiv0957845862ydpfd023d29yahoo_quoted_7545444271"><div><div =
id=3D"x_yiv0957845862yqt71890"><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'>On Monday, December 23, 2019, 10:05:53 PM EST, Glenn Franco via Fot =
<a href=3D"mailto:[email-masked]">&lt;[email-masked]&gt;</a> =
wrote: <o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p>&nbsp;</o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p>&nbsp;</o:p></span></p></div><div><div =
id=3D"x_yiv0957845862ydpfd023d29yiv2459643629"><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'>Merry Christmas<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'>Quick Question<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'>A friend of mine started testing his A-Type Overdrives by back =
spinning the output flange (to the prop shaft) with a pulley and =
electric motor.<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'>I've seen this done by spinning the transmission&nbsp;INPUT shaft =
with a pulley and electric motor but not from the =
rear.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'>Any chance of damaging the overdrive since the overrunning clutch is =
only going to spin in the one direction, can it lock up the =
overdrive?<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'>Thanks in advance<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'>Glenn<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'><o:p>&nbsp;</o:p></span></p></div></div></div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282=
A'>_______________________________________________<br><a =
href=3D"mailto:[email-masked]" =
target=3D"_blank">[email-masked]</a><br><br><a =
href=3D"http://www.fot-racing.com" =
target=3D"_blank">http://www.fot-racing.com</a><br><br>Donate: <a =
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target=3D"_blank">http://www.team.net/donate.html</a><br>Archive: <a =
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%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%=
20%20%20%20%20%20%20%20" target=3D"_blank">http://autox.team.net/archive =
</a><a href=3D"http://www.team.net/pipermail/fot" =
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yahoo.com</a><br><br><o:p></o:p></span></p></div></div></div></div></div>=
</div><div id=3D"x_yiv0957845862yqt09620"><p =
class=3DMsoNormal>_______________________________________________<br><a =
href=3D"mailto:[email-masked]" =
target=3D"_blank">[email-masked]</a><br><br><a =
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hoo.com</a> <o:p></o:p></p><div id=3D"x_yiv0957845862yqtfd20996"><p =
class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><br><br><o:p></o:p></p></div></div></block=
quote></div><div id=3D"x_yiv0957845862yqtfd45638"><p =
class=3DMsoNormal>_______________________________________________<br><a =
href=3D"mailto:[email-masked]">[email-masked]</a><br><br><a =
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onate: <a =
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<o:p></o:p></p><div id=3D"x_yiv0957845862yqtfd71519"><p =
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quote></div></div></blockquote></div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>__________________________________________=
_____<br><a =
href=3D"mailto:[email-masked]">[email-masked]</a><br><br><a =
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></o:p></p></div></blockquote></div></div><p =
class=3DMsoNormal><br><br><o:p></o:p></p><pre>___________________________=
____________________<o:p></o:p></pre><pre><a =
href=3D"mailto:[email-masked]">[email-masked]</a><o:p></o:p></pre=
><pre><o:p>&nbsp;</o:p></pre><pre><a =
href=3D"http://www.fot-racing.com">http://www.fot-racing.com</a><o:p></o:=
p></pre><pre><o:p>&nbsp;</o:p></pre><pre>Donate: <a =
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></div></body></html>
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From: Chris Marx via Fot <[email-masked]>
Date: Thu, 26 Dec 2019 10:26:09 +0100

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Hi Dave,

=20

The OD can turn backwards, if one of the OD cone clutches are engaged.

If the OD is in transfer stage between the cone clutches so that the =
roller clutch is engaged, then the OD explodes when turning backwards.

=20

BUT if on a spin the wheels are locked, the OD is never in danger to =
turn backwards because the wheels need to be locked until stand still.

=20

Cheers

Chris

=20

=20

=20

Von: Fot <[email-masked]> Im Auftrag von David Gott via Fot
Gesendet: Dienstag, 24. Dezember 2019 19:50
An: Greg Blake <[email-masked]>
Cc: FOT List <[email-masked]>; Glenn Franco <[email-masked]>
Betreff: Re: [Fot] A-Type Overdrive Testing

=20

Speaking of spinning the OD backwards, which it won=E2=80=99t do, what =
happens if you spin the car while overdrive is engaged?   Probably my =
biggest concern for running one of these in a race car...   I was =
thinking I=E2=80=99d use it on track and maybe autocross, but I think =
that is ill advised now that I bring up that question.   Has anyone ever =
spun and rolled backwards, with OD engaged?

=20

Dave G

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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'mso-fareast-language:EN-US'>Hi =
Dave,<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'>The OD can turn backwards, if one =
of the OD cone clutches are engaged.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'>If the OD is in transfer stage =
between the cone clutches so that the roller clutch is engaged, then the =
OD explodes when turning backwards.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'>BUT if on a spin the wheels are =
locked, the OD is never in danger to turn backwards because the wheels =
need to be locked until stand still.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'>Cheers<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:EN-US'>Chris<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
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v style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b>Von:</b> Fot =
&lt;[email-masked]&gt; <b>Im Auftrag von </b>David Gott via =
Fot<br><b>Gesendet:</b> Dienstag, 24. Dezember 2019 19:50<br><b>An:</b> =
Greg Blake &lt;[email-masked]&gt;<br><b>Cc:</b> FOT List =
&lt;[email-masked]&gt;; Glenn Franco =
&lt;[email-masked]&gt;<br><b>Betreff:</b> Re: [Fot] A-Type =
Overdrive Testing<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Speaking of =
spinning the OD backwards, which it won=E2=80=99t do, what happens if =
you spin the car while overdrive is engaged? &nbsp; Probably my biggest =
concern for running one of these in a race car... &nbsp; I was thinking =
I=E2=80=99d use it on track and maybe autocross, but I think that is ill =
advised now that I bring up that question. &nbsp; Has anyone ever spun =
and rolled backwards, with OD engaged?<o:p></o:p></p><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>Dave =
G<o:p></o:p></p></div></div></body></html>
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---

From: Randall via Fot <[email-masked]>
Date: Thu, 26 Dec 2019 05:32:24 -0800

> I didn't spin but I did lock up one rear wheel with a Detroit 
> Locker diff.  Large bang, it didn't like that.  Detroit 
> Locker was OK, but the one way clutch / roller arrangement in 
> the OD broke into multiple pieces.  What's funny is that it 
> still worked perfectly.  

Just a thought: Has anyone tried just leaving out the rollers in the sprag
clutch?  Might need stiffer direct drive springs, and skip the burnouts, but
direct drive in 1st gear seems like the only time the sprag clutch is really
needed; once you've built hydraulic pressure.

-- Randall

---

From: "van.mulders.marcel--- via Fot" <[email-masked]>
Date: Thu, 26 Dec 2019 18:04:48 +0100 (CET)

I think the unidirectional clutch (roller bearing) is there in the first place to keep the drive going while engaging the overdrive. Without this arrangement, the revs would go up every time the overdrive is engaged, while the cone clutch is moving (unless you keep your foot off the accelerator pedal when engaging the overdrive). PS : when the cone clutch has gone, the unidirectional clutch has to bear the whole driving force : it doesn't last long when this happens.
Marcel

----- Oorspronkelijk bericht -----
Van: "fot" <[email-masked]>
Aan: "fot" <[email-masked]>
Verzonden: Donderdag 26 december 2019 14:32:24
Onderwerp: Re: [Fot] A-Type Overdrive Testing

-- Randall