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Re: [Fot] A-type OD leaks

To: "'Henry A. Morrison'" <dos_gusanos@msn.com>, "'Nick Black'" <vintagenick42@yahoo.com>, "'Glenn Franco'" <brakey6666@gmail.com>
Subject: Re: [Fot] A-type OD leaks
From: M&M Hado via Fot <fot@autox.team.net>
Date: Mon, 25 Sep 2023 17:13:20 -0500
Cc: 'Joe Boruch' <jaboruch@yahoo.com>, fot@autox.team.net
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
Organization: mhado@att.net
References: <701443378.3201546.1695252218899@mail.yahoo.com> <50170EAE-C6D2-4105-A4BB-0607F2F338E3@yahoo.com> <CAN=KnFTNf-JCSc5-q_dJ7PywcC-TAXtwdP5gWpV4LQHQVLs1eQ@mail.gmail.com> <SN7P223MB0669EB22BDE4EF81F3E04D9E90FFA@SN7P223MB0669.NAMP223.PROD.OUTLOOK.COM>
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Henry,

=20

Sorry for the late reply but please see my post of last Thursday =
regarding overdrive springs.  I=E2=80=99ve seen the issue you describe =
when the problem doesn=E2=80=99t go away after checking the hydraulics =
or electrical.  If a =E2=80=9Clong=E2=80=9D spring is where one of the =
short ones should be, it will coil bind and prevent the clutch from =
moving far enough to contact the brake ring fully.  It only takes one =
spring in the wrong place to hold back the clutch sufficiently to =
prevent full contact with the brake ring.  It may hold intermittently =
but will slip under load, or acceleration.  Be sure to check your =
springs for compressed length since they may be the same length =
otherwise and it=E2=80=99s hard to tell a =E2=80=9Cshort=E2=80=9D one =
from a =E2=80=9Clong=E2=80=9D one.

=20

Mike Hado

. =20

=20

From: Fot [mailto:fot-bounces@autox.team.net] On Behalf Of Henry A. =
Morrison via Fot
Sent: Friday, September 22, 2023 2:17 PM
To: Nick Black; Glenn Franco
Cc: Joe Boruch; FOT Triumph
Subject: Re: [Fot] A-type OD leaks

=20

My current overdrive rebuild went so well with me replacing a variety of =
linings and washers that were shot or just not installed by the previous =
rebuilder.  I thought all the pressure producing bits looked good so =
mostly left them alone.  I did the pressure test when I got it all back =
together and it was close to where it was supposed to be.  I drove the =
car once and it seemed to work, drove it again and it dropped into =
overdrive whenever I lifted off the gas and dropped out again when power =
was re applied.  This is pretty much what the thing was doing when I =
started the project and I'm sure was the reason for my slower than they =
should have been lap times at the Cup! =20

=20

Any suggestions on what to do next?=20

=20

Cheers, Henry Morrison

=20

  _____ =20

From: Fot <fot-bounces@autox.team.net> on behalf of Glenn Franco via Fot =
<fot@autox.team.net>
Sent: Thursday, September 21, 2023 2:57 PM
To: Nick Black <vintagenick42@yahoo.com>
Cc: Joe Boruch <jaboruch@yahoo.com>; FOT Triumph <fot@autox.team.net>
Subject: Re: [Fot] A-type OD leaks=20

=20

I have to chime in on issues with the A type overdrive. Thankfully I =
have NO more A types to overhaul since they are a P.I.T.A. to do.=20

The hardest part, as stated, is lining up the 2 splines that will allow =
the mainshaft to nest into the Planetary Gearset and Overrunning Clutch. =
You basically need at least yourself and a helper to put it together. I =
probably did 10-12 of these 2 or more years ago. First time we did one =
we split the adapter plate pulling the O/D on to the transmission. =
Unfortunately it was welded back together and the repair was a weak =
spot. If you force the O/D onto the trans when pulling it back together =
with the 2 nuts on the O/D studs it will break or bend the plate.

=20

The fasteners (6) that hold the plate to the back of the transmission =
are drilled for safety wire. I used stainless safety wire on those after =
torquing. Make sure you repeat the way the wire is routed through the =
bolt heads. I had a couple transmissions leak because I didn't follow =
the routing  properly. I mistakenly routed some of the wire near the =
base of the plate fouling the gasket which resulted in an embarrassing 3 =
comebacks on one transmission due to leaks.

Took awhile to figure it out, dumb mistake.

=20

Glenn 74 TR6 Restored, 68 TR250 Frame Off in Progress, 73 BMW 2002=20

=20

=20

On Thu, Sep 21, 2023 at 4:04=E2=80=AFPM Nick Black via Fot =
<fot@autox.team.net> wrote:

Joe =20

I agree, it=E2=80=99s the bolts that hold the od plate to the =
transmission. I recall that the torque on these bolts is about 25 lbs. =
the bolts are totally soft and will stretch forever with one or two =
additional pounds=E2=80=A6 throw them away and use Allen head bolts =
drilled for safety wire. The stock bolts stretch and the plate gets =
loose and leaks.

=20

Sent from the wilds of NorCal=20





On Sep 20, 2023, at 8:52 PM, Joe Boruch via Fot <fot@autox.team.net> =
wrote:

=EF=BB=BF=20

I have a leaky a-type OD in my street TR4 that looks like it's leaking =
from near the adapter plate.  I have never taken one apart.  Can I just =
separate the OD from the trans and replace the gaskets or the adapter =
plate (I've heard that Quantum Mechanics sells an uprated plate and am =
checking with John to see if he has one) and then reassemble without =
needing to take the OD apart further?  There is a youtube video that =
shows an OD being separated and it looks like it is do able.=20

=20

_______________________________________________
fot@autox.team.net

http://www.fot-racing.com

Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot =
<http://www.team.net/pipermail/fotUnsubscribe/Manage>=20
http://autox.team.net/mailman/options/fot/gaf3@charter.net




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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif";color:black'>Henry,<o:p></o:p><=
/span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif";color:black'><o:p>&nbsp;</o:p><=
/span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif";color:black'>Sorry for the =
late reply but please see my post of last Thursday regarding overdrive =
springs.=C2=A0 I=E2=80=99ve seen the issue you describe when the problem =
doesn=E2=80=99t go away after checking the hydraulics or =
electrical.=C2=A0 If a =E2=80=9Clong=E2=80=9D spring is where one of the =
short ones should be, it will coil bind and prevent the clutch from =
moving far enough to contact the brake ring fully.=C2=A0 It only takes =
one spring in the wrong place to hold back the clutch sufficiently to =
prevent full contact with the brake ring.=C2=A0 It may hold =
intermittently but will slip under load, or acceleration.=C2=A0 Be sure =
to check your springs for compressed length since they may be the same =
length otherwise and it=E2=80=99s hard to tell a =E2=80=9Cshort=E2=80=9D =
one from a =E2=80=9Clong=E2=80=9D one.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif";color:black'><o:p>&nbsp;</o:p><=
/span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif";color:black'>Mike =
Hado<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif";color:black'>.=C2=A0 =
<o:p></o:p></span></p><p class=3DMsoNormal><a =
name=3D"_MailEndCompose"><span =
style=3D'font-family:"Arial","sans-serif";color:black'><o:p>&nbsp;</o:p><=
/span></a></p><div><div style=3D'border:none;border-top:solid #B5C4DF =
1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Fot [mailto:fot-bounces@autox.team.net] <b>On Behalf Of </b>Henry A. =
Morrison via Fot<br><b>Sent:</b> Friday, September 22, 2023 2:17 =
PM<br><b>To:</b> Nick Black; Glenn Franco<br><b>Cc:</b> Joe Boruch; FOT =
Triumph<br><b>Subject:</b> Re: [Fot] A-type OD =
leaks<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal><span =
style=3D'font-family:"Calibri","sans-serif";color:black'>My current =
overdrive rebuild went so well with me replacing a variety of linings =
and washers that were shot or just not installed by the previous =
rebuilder.&nbsp; I thought all the pressure producing bits looked good =
so mostly left them alone.&nbsp; I did the pressure test when I got it =
all back together and it was close to where it was supposed to be.&nbsp; =
I drove the car once and it seemed to work, drove it again and it =
dropped into overdrive whenever I lifted off the gas and dropped out =
again when power was re applied.&nbsp; This is pretty much what the =
thing was doing when I started the project and I'm sure was the reason =
for my slower than they should have been lap times at the =
Cup!&nbsp;&nbsp;<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-family:"Calibri","sans-serif";color:black'><o:p>&nbsp;</o:p=
></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-family:"Calibri","sans-serif";color:black'>Any suggestions =
on what to do next?&nbsp;<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-family:"Calibri","sans-serif";color:black'><o:p>&nbsp;</o:p=
></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-family:"Calibri","sans-serif";color:black'>Cheers, Henry =
Morrison<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-family:"Calibri","sans-serif";color:black'><o:p>&nbsp;</o:p=
></span></p></div><div class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center'><hr size=3D3 width=3D"98%" =
align=3Dcenter></div><div id=3DdivRplyFwdMsg><p =
class=3DMsoNormal><b><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'=
>From:</span></b><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'=
> Fot &lt;fot-bounces@autox.team.net&gt; on behalf of Glenn Franco via =
Fot &lt;fot@autox.team.net&gt;<br><b>Sent:</b> Thursday, September 21, =
2023 2:57 PM<br><b>To:</b> Nick Black =
&lt;vintagenick42@yahoo.com&gt;<br><b>Cc:</b> Joe Boruch =
&lt;jaboruch@yahoo.com&gt;; FOT Triumph =
&lt;fot@autox.team.net&gt;<br><b>Subject:</b> Re: [Fot] A-type OD =
leaks</span> <o:p></o:p></p><div><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p></div></div><div><div><div><p =
class=3DMsoNormal>I have to chime in on issues with the A type =
overdrive. Thankfully I have NO more A types to overhaul since they are =
a P.I.T.A. to do. <o:p></o:p></p></div><div><p class=3DMsoNormal>The =
hardest part, as stated, is lining up the 2 splines that will allow the =
mainshaft to nest into the Planetary Gearset and Overrunning Clutch. You =
basically need at least yourself and a helper to put it together. I =
probably did 10-12 of these 2 or more years ago. First time we did one =
we split the adapter plate pulling the O/D on to the transmission. =
Unfortunately it was welded back together and the repair was a weak =
spot. If you force the O/D onto the trans when pulling it back together =
with the 2 nuts on the O/D studs it will break or bend the =
plate.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>The fasteners (6) that hold the plate to the back of =
the transmission are drilled for safety wire. I used stainless safety =
wire on those after torquing. Make sure you repeat the way the wire is =
routed through the bolt heads. I had a couple transmissions leak because =
I didn't follow the routing&nbsp; properly. I mistakenly routed some of =
the wire near the base of the plate fouling the gasket which resulted in =
an embarrassing 3 comebacks on one transmission due to =
leaks.<o:p></o:p></p></div><div><p class=3DMsoNormal>Took awhile to =
figure it out, dumb mistake.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>Glenn 74 TR6 Restored, 68 TR250 Frame Off in Progress, =
73 BMW 2002 <o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><div><p class=3DMsoNormal>On =
Thu, Sep 21, 2023 at 4:04=E2=80=AFPM Nick Black via Fot &lt;<a =
href=3D"mailto:fot@autox.team.net";>fot@autox.team.net</a>&gt; =
wrote:<o:p></o:p></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-right:0in'><div><p =
class=3DMsoNormal>Joe&nbsp; <o:p></o:p></p><div><p class=3DMsoNormal>I =
agree, it=E2=80=99s the bolts that hold the od plate to the =
transmission. I recall that the torque on these bolts is about 25 lbs. =
the bolts are totally soft and will stretch forever with one or two =
additional pounds=E2=80=A6 throw them away and use Allen head bolts =
drilled for safety wire. The stock bolts stretch and the plate gets =
loose and leaks.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal>Sent =
from the wilds of NorCal&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal><br><br><o:p></o:p></p><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>On Sep 20, 2023, at 8:52 PM, Joe Boruch =
via Fot &lt;<a href=3D"mailto:fot@autox.team.net"; =
target=3D"_blank">fot@autox.team.net</a>&gt; =
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-family:"Tahoma","sans-serif"'>=EF=BB=BF</span> =
<o:p></o:p></p><div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Helvetica","sans-serif"'>I have a =
leaky a-type OD in my street TR4 that looks like it's leaking from near =
the adapter plate.&nbsp; I have never taken one apart.&nbsp; Can I just =
separate the OD from the trans and replace the gaskets or the adapter =
plate (I've heard that Quantum Mechanics sells an uprated plate and am =
checking with John to see if he has one) and then reassemble without =
needing to take the OD apart further?&nbsp; There is a youtube video =
that shows an OD being separated and it looks like it is do =
able.&nbsp;<o:p></o:p></span></p></div></div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><o:p>&nbsp;</o:p></p></div></blockquote></=
div></div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>__________________________________________=
_____<br><a href=3D"mailto:fot@autox.team.net"; =
target=3D"_blank">fot@autox.team.net</a><br><br><a =
href=3D"http://www.fot-racing.com"; =
target=3D"_blank">http://www.fot-racing.com</a><br><br>Donate: <a =
href=3D"http://www.team.net/donate.html"; =
target=3D"_blank">http://www.team.net/donate.html</a><br>Archive: <a =
href=3D"http://autox.team.net/archive"; =
target=3D"_blank">http://autox.team.net/archive</a> <a =
href=3D"http://www.team.net/pipermail/fotUnsubscribe/Manage"; =
target=3D"_blank">http://www.team.net/pipermail/fot<br>Unsubscribe/Manage=
</a>: <a =
href=3D"http://autox.team.net/mailman/options/fot/gaf3@charter.net"; =
target=3D"_blank">http://autox.team.net/mailman/options/fot/gaf3@charter.=
net</a><br><br><o:p></o:p></p></blockquote></div></div></div></body></htm=
l>
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