Subject: Re: [Fot] Too much clearance on distributor drive gear

From: fubog1 via Fot <[email-masked]>
Date: Tue, 19 Mar 2019 13:54:58 +0000 (UTC)

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 If we're talking (typing) about the oil pump/distributor drive gear end fl=
oat being excessive, agreed, no shim, something is worn, identify the probl=
em and correct it.Obviously the gasket thickness is a big part of the equat=
ion.Wear would most likely be obvious on the top face of the bush or the th=
rust face on the bottom of the pedestal.When I set these up I usually trim =
a little off of the bottom of the pedestal mounting flange to get the corre=
ct end float and bolt it up metal-onmetal, no gasket.HTHGlen

=20
=20
-----Original Message-----
From: Robert Lang via Fot <[email-masked]>
To: fot <[email-masked]>; timmmurphh <[email-masked]>
Sent: Tue, Mar 19, 2019 9:22 am
Subject: Re: [Fot] Too much clearance on distributor drive gear

 Hi - if the bushing is worn, it needs to be replaced. I would not run the =
gear with a thin shim under it, the shim will not last. I just looked at Mo=
ss and they have that distributor bushing listed for $75 plus or minus.
If you have slop with that distributor drive, you will never get the igniti=
on timing to be rock solid.
Regards,Bob Lang

    On Tuesday, March 19, 2019, 12:36:30 AM EDT, timmmurphh--- via Fot <fot=
@autox.team.net> wrote: =20
=20
 #yiv7706464624 #yiv7706464624 -- filtered {panose-1:2 4 5 3 5 4 6 3 2 4;} =
#yiv7706464624 filtered {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;=
} #yiv7706464624 p.yiv7706464624MsoNormal, #yiv7706464624 li.yiv7706464624M=
soNormal, #yiv7706464624 div.yiv7706464624MsoNormal {margin:0in;margin-bott=
om:.0001pt;font-size:11.0pt;font-family:sans-serif;} #yiv7706464624 a:link,=
 #yiv7706464624 span.yiv7706464624MsoHyperlink {color:#0563C1;text-decorati=
on:underline;} #yiv7706464624 a:visited, #yiv7706464624 span.yiv7706464624M=
soHyperlinkFollowed {color:#954F72;text-decoration:underline;} #yiv77064646=
24 span.yiv7706464624EmailStyle17 {font-family:sans-serif;color:windowtext;=
} #yiv7706464624 .yiv7706464624MsoChpDefault {font-family:sans-serif;} #yiv=
7706464624 filtered {margin:1.0in 1.0in 1.0in 1.0in;} #yiv7706464624 div.yi=
v7706464624WordSection1 {} #yiv7706464624 On page 1.130 and 1.131 of the Wo=
rkshop Manual it describes the procedure for obtaining the correct clearanc=
e or float for the distributor gear driven by the camshaft.=C2=A0 It gives =
two scenarios: one where there is interference of the gear and the bushing;=
 and a second where there is not enough clearance or float.=C2=A0 What it d=
oesn=E2=80=99t consider is if there is too much clearance between the gear =
and the bushing.=C2=A0 That is the case on my TR4 engine.=C2=A0 I had 0.016=
 clearance and added a 0.010 shim under the gear to get the desired 0.006 c=
learance.=C2=A0 Has anybody else had this experience?=C2=A0 And what did yo=
u do about it. =C2=A0Tim Murphy____________________________________________=
___
[email-masked]

http://www.fot-racing.com

Archive: http://www.team.net/pipermail/fot
@yahoo.com

  _______________________________________________
[email-masked]

http://www.fot-racing.com

Archive: http://www.team.net/pipermail/fot
m

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Content-Transfer-Encoding: quoted-printable

<font color=3D'black' size=3D'2' face=3D'Arial, Helvetica, sans-serif'>
<div> <font size=3D"2">If we're talking (typing) about the oil pump/distrib=
utor drive gear end float being excessive, agreed, no shim, something is wo=
rn, identify the problem and correct it.</font></div>

<div><font size=3D"2">Obviously the gasket thickness is a big part of the e=
quation.</font></div>

<div><font size=3D"2">Wear would most likely be obvious on the top face of =
the bush or the thrust face on the bottom of the pedestal.</font></div>

<div><font size=3D"2">When I set these up I usually trim a little off of th=
e bottom of the pedestal mounting flange to get the correct end float and b=
olt it up metal-onmetal, no gasket.</font></div>

<div><font size=3D"2">HTH</font></div>

<div><font size=3D"2">Glen<br>
</font></div>

<div><font size=3D"2"></font><br>
</div>

<div> <br>
</div>

<div> <br>
</div>

<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black">-----=
Original Message-----<br>
From: Robert Lang via Fot &lt;[email-masked]&gt;<br>
To: fot &lt;[email-masked]&gt;; timmmurphh &lt;[email-masked]&gt;=
<br>
Sent: Tue, Mar 19, 2019 9:22 am<br>
Subject: Re: [Fot] Too much clearance on distributor drive gear<br>
<br>

<div id=3D"yiv7706464624">
<div>
<div class=3D"yiv7706464624ydp458ed572yahoo-style-wrap" style=3D"font-famil=
y:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;">
<div></div>

       =20
<div>Hi - if the bushing is worn, it needs to be replaced. I would not run =
the gear with a thin shim under it, the shim will not last. I just looked a=
t Moss and they have that distributor bushing listed for $75 plus or minus.=
</div>

<div><br clear=3D"none"></div>

<div>If you have slop with that distributor drive, you will never get the i=
gnition timing to be rock solid.</div>

<div><br clear=3D"none"></div>

<div>Regards,</div>

<div>Bob Lang<br clear=3D"none"></div>

<div><br clear=3D"none"></div>

       =20
        </div>

<div class=3D"yiv7706464624yahoo_quoted" id=3D"yiv7706464624yahoo_quoted_38=
05613488">
           =20
<div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;fo=
nt-size:13px;color:#26282a;">
               =20
               =20
<div class=3D"yiv7706464624yqt5784265216" id=3D"yiv7706464624yqt96128">
<div>
                    On Tuesday, March 19, 2019, 12:36:30 AM EDT, timmmurphh=
--- via Fot &lt;[email-masked]&gt; wrote:
                </div>

               =20
<div><br clear=3D"none"></div>

               =20
<div><br clear=3D"none"></div>

               =20
<div>
<div id=3D"yiv7706464624"><style>#yiv7706464624 #yiv7706464624 --     filte=
red  {panose-1:2 4 5 3 5 4 6 3 2 4;} #yiv7706464624 filtered  {font-family:=
Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} #yiv7706464624     p.yiv7706464624M=
soNormal, #yiv7706464624  li.yiv7706464624MsoNormal, #yiv7706464624  div.yi=
v7706464624MsoNormal  {margin:0in;margin-bottom:.0001pt;font-size:11.0pt;fo=
nt-family:sans-serif;} #yiv7706464624  a:link, #yiv7706464624  span.yiv7706=
464624MsoHyperlink  {color:#0563C1;text-decoration:underline;} #yiv77064646=
24  a:visited, #yiv7706464624  span.yiv7706464624MsoHyperlinkFollowed  {col=
or:#954F72;text-decoration:underline;} #yiv7706464624  span.yiv7706464624Em=
ailStyle17  {font-family:sans-serif;color:windowtext;} #yiv7706464624  .yiv=
7706464624MsoChpDefault  {font-family:sans-serif;} #yiv7706464624 filtered =
 {margin:1.0in 1.0in 1.0in 1.0in;} #yiv7706464624  div.yiv7706464624WordSec=
tion1  {} #yiv7706464624 </style>
<div>
<div class=3D"yiv7706464624WordSection1">
<div class=3D"yiv7706464624MsoNormal">On page 1.130 and 1.131 of the Worksh=
op Manual it describes the procedure for obtaining the correct clearance or=
 float for the distributor gear driven by the camshaft.&nbsp; It gives two =
scenarios: one where there is interference of the gear and the bushing; and=
 a second where there is not enough clearance or float.&nbsp; What it doesn=
=E2=80=99t consider is if there is too much clearance between the gear and =
the bushing.&nbsp; That is the case on my TR4 engine.&nbsp; I had 0.016 cle=
arance and added a 0.010 shim under the gear to get the desired 0.006 clear=
ance.&nbsp; Has anybody else had this experience?&nbsp; And what did you do=
 about it.</div>

<div class=3D"yiv7706464624MsoNormal"> &nbsp;</div>

<div class=3D"yiv7706464624MsoNormal">Tim Murphy</div>
</div>
</div>
</div>
_______________________________________________<br clear=3D"none"><a rel=3D=
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_______________________________________________
[email-masked]

http://www.fot-racing.com

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

--===============8784768940666174132==--

---

From: Phil Gott via Fot <[email-masked]>
Date: Tue, 19 Mar 2019 18:40:33 -0400

--===============3548221632258942938==
	boundary=Apple-Mail-F971BD5A-5AB1-4FE4-8502-DF2AEDB74CC0
Content-Transfer-Encoding: 7bit

--Apple-Mail-F971BD5A-5AB1-4FE4-8502-DF2AEDB74CC0
	charset=utf-8
Content-Transfer-Encoding: quoted-printable

Metal-on-Metal makes the most sense but you need a lathe and a steady hand. T=
he reason Metal-on-Metal is best is because your distributor ground is throu=
gh the pedestal. If you use a gasket or rtv the ground contact us reduced. T=
he studs and nuts don=E2=80=99t always do the job. I install a separate grou=
nd wire. Note that ground is just as important for the Pertronix style syste=
m as it is for points.

Sent from my iPhone

> On Mar 19, 2019, at 9:54 AM, fubog1 via Fot <[email-masked]> wrote:
>=20
oat being excessive, agreed, no shim, something is worn, identify the proble=
m and correct it.
> Obviously the gasket thickness is a big part of the equation.
> Wear would most likely be obvious on the top face of the bush or the thrus=
t face on the bottom of the pedestal.
> When I set these up I usually trim a little off of the bottom of the pedes=
tal mounting flange to get the correct end float and bolt it up metal-onmeta=
l, no gasket.
> HTH
> Glen
> Hi - if the bushing is worn, it needs to be replaced. I would not run the g=
ear with a thin shim under it, the shim will not last. I just looked at Moss=
 and they have that distributor bushing listed for $75 plus or minus.
>=20
> If you have slop with that distributor drive, you will never get the ignit=
ion timing to be rock solid.
>=20
> Regards,
> Bob Lang
>=20
> On Tuesday, March 19, 2019, 12:36:30 AM EDT, timmmurphh--- via Fot <fot@au=
tox.team.net> wrote:
>=20
>=20
> On page 1.130 and 1.131 of the Workshop Manual it describes the procedure f=
or obtaining the correct clearance or float for the distributor gear driven b=
y the camshaft.  It gives two scenarios: one where there is interference of t=
he gear and the bushing; and a second where there is not enough clearance or=
 float.  What it doesn=E2=80=99t consider is if there is too much clearance b=
etween the gear and the bushing.  That is the case on my TR4 engine.  I had 0=
.016 clearance and added a 0.010 shim under the gear to get the desired 0.00=
6 clearance.  Has anybody else had this experience?  And what did you do abo=
ut it.
> Tim Murphy
> Donate: http://www.team.net/donate.html
> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/robertlangtr=
[email-masked]
> Donate: http://www.team.net/donate.html
> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/[email-masked]=
om
> Donate: http://www.team.net/donate.html
> Unsubscribe/Manage: http://autox.team.net/mailman/options/fot/vfracing@aol=
.com

--Apple-Mail-F971BD5A-5AB1-4FE4-8502-DF2AEDB74CC0
	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">Metal-on-Metal makes the most sense but you=
 need a lathe and a steady hand. The reason Metal-on-Metal is best is becaus=
e your distributor ground is through the pedestal. If you use a gasket or rt=
v the ground contact us reduced. The studs and nuts don=E2=80=99t always do t=
he job. I install a separate ground wire. Note that ground is just as import=
ant for the Pertronix style system as it is for points.<br><br><div id=3D"Ap=
pleMailSignature" dir=3D"ltr">Sent from my iPhone</div><div dir=3D"ltr"><br>=
On Mar 19, 2019, at 9:54 AM, fubog1 via Fot &lt;<a href=3D"mailto:fot@autox.=
team.net">[email-masked]</a>&gt; wrote:<br><br></div><blockquote type=3D=
"cite"><div dir=3D"ltr"><font color=3D"black" size=3D"2" face=3D"Arial, Helv=
etica, sans-serif">
<div> <font size=3D"2">If we're talking (typing) about the oil pump/distribu=
tor drive gear end float being excessive, agreed, no shim, something is worn=
, identify the problem and correct it.</font></div>

<div><font size=3D"2">Obviously the gasket thickness is a big part of the eq=
uation.</font></div>

<div><font size=3D"2">Wear would most likely be obvious on the top face of t=
he bush or the thrust face on the bottom of the pedestal.</font></div>

<div><font size=3D"2">When I set these up I usually trim a little off of the=
 bottom of the pedestal mounting flange to get the correct end float and bol=
t it up metal-onmetal, no gasket.</font></div>

<div> <br>
</div>

<div> <br>
</div>

<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black">-----O=
riginal Message-----<br>
From: Robert Lang via Fot &lt;<a href=3D"mailto:[email-masked]">fot@auto=
x.team.net</a>&gt;<br>
To: fot &lt;<a href=3D"mailto:[email-masked]">[email-masked]</a>&gt;=
; timmmurphh &lt;<a href=3D"mailto:[email-masked]">[email-masked]=
m</a>&gt;<br>
Sent: Tue, Mar 19, 2019 9:22 am<br>
Subject: Re: [Fot] Too much clearance on distributor drive gear<br>
<br>

<div id=3D"yiv7706464624">
<div>
<div class=3D"yiv7706464624ydp458ed572yahoo-style-wrap" style=3D"font-family=
:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;">
<div></div>

       =20
<div>Hi - if the bushing is worn, it needs to be replaced. I would not run t=
he gear with a thin shim under it, the shim will not last. I just looked at M=
oss and they have that distributor bushing listed for $75 plus or minus.</di=
v>

<div>If you have slop with that distributor drive, you will never get the ig=
nition timing to be rock solid.</div>

<div>Regards,</div>

       =20
        </div>

<div class=3D"yiv7706464624yahoo_quoted" id=3D"yiv7706464624yahoo_quoted_380=
5613488">
           =20
<div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;fon=
t-size:13px;color:#26282a;">
               =20
               =20
<div class=3D"yiv7706464624yqt5784265216" id=3D"yiv7706464624yqt96128">
<div>
                    On Tuesday, March 19, 2019, 12:36:30 AM EDT, timmmurphh-=
-- via Fot &lt;<a href=3D"mailto:[email-masked]">[email-masked]</a>&=
gt; wrote:
                </div>

               =20

               =20

               =20
<div>
<div id=3D"yiv7706464624"><style>#yiv7706464624 #yiv7706464624 --     filter=
ed  {panose-1:2 4 5 3 5 4 6 3 2 4;} #yiv7706464624 filtered  {font-family:Ca=
libri;panose-1:2 15 5 2 2 2 4 3 2 4;} #yiv7706464624     p.yiv7706464624MsoN=
ormal, #yiv7706464624  li.yiv7706464624MsoNormal, #yiv7706464624  div.yiv770=
6464624MsoNormal  {margin:0in;margin-bottom:.0001pt;font-size:11.0pt;font-fa=
mily:sans-serif;} #yiv7706464624  a:link, #yiv7706464624  span.yiv7706464624=
MsoHyperlink  {color:#0563C1;text-decoration:underline;} #yiv7706464624  a:v=
isited, #yiv7706464624  span.yiv7706464624MsoHyperlinkFollowed  {color:#954F7=
2;text-decoration:underline;} #yiv7706464624  span.yiv7706464624EmailStyle17=
  {font-family:sans-serif;color:windowtext;} #yiv7706464624  .yiv7706464624M=
soChpDefault  {font-family:sans-serif;} #yiv7706464624 filtered  {margin:1.0=
in 1.0in 1.0in 1.0in;} #yiv7706464624  div.yiv7706464624WordSection1  {} #yi=
v7706464624 </style>
<div>
<div class=3D"yiv7706464624WordSection1">
<div class=3D"yiv7706464624MsoNormal">On page 1.130 and 1.131 of the Worksho=
p Manual it describes the procedure for obtaining the correct clearance or f=
loat for the distributor gear driven by the camshaft.&nbsp; It gives two sce=
narios: one where there is interference of the gear and the bushing; and a s=
econd where there is not enough clearance or float.&nbsp; What it doesn=E2=80=
=99t consider is if there is too much clearance between the gear and the bus=
hing.&nbsp; That is the case on my TR4 engine.&nbsp; I had 0.016 clearance a=
nd added a 0.010 shim under the gear to get the desired 0.006 clearance.&nbs=
p; Has anybody else had this experience?&nbsp; And what did you do about it.=
</div>

<div class=3D"yiv7706464624MsoNormal">Tim Murphy</div>
</div>
</div>
</div>
_______________________________________________<br clear=3D"none"><a rel=3D"=
noopener noreferrer" shape=3D"rect" ymailto=3D"mailto:[email-masked]" ta=
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