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

To: Timothy Murphy <timmmurphh@gmail.com>
Subject: Re: [Fot] Too much clearance on distributor drive gear
From: John Styduhar via Fot <fot@autox.team.net>
Date: Tue, 19 Mar 2019 08:45:51 -0400
Cc: Triumph 'Friends of Triumph <fot@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
References: <02eb01d4ddc9$7c64e8e0$752ebaa0$@gmail.com>
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IMO, if you have too much end float (without packing) you either have a
heavily worn distributor drive gear bush (in the block) or the bottom of
the distributor pedestal which bears against the side of the gear is worn.
I have always had to add some "packing" under the pedestal to get end
float.  BTW, I never found the instructions in the manual a very accurate
way to determine end float.

On Tue, Mar 19, 2019 at 12:57 AM timmmurphh--- via Fot <fot@autox.team.net>
wrote:

> On page 1.130 and 1.131 of the Workshop Manual it describes the procedure
> for obtaining the correct clearance or float for the distributor gear
> driven by the camshaft.  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.  What it doesn=E2=80=99t consider is if there =
is too
> much clearance between 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 0.006 clearance.  Has anybody else had this experience?
> And what did you do about it.
>
>
>
> Tim Murphy
> _______________________________________________
> fot@autox.team.net
>
> http://www.fot-racing.com
>
> Donate: http://www.team.net/donate.html
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>
>

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-size:small">IMO=
, if you have too much end float (without packing) you either have a heavil=
y worn distributor drive gear bush (in the block) or the bottom of the dist=
ributor pedestal which bears against the side of the gear is worn.=C2=A0 I =
have always had to add some &quot;packing&quot; under the pedestal to get e=
nd float.=C2=A0 BTW, I never found the instructions in the manual a very ac=
curate way to determine end float.=C2=A0</div></div><br><div class=3D"gmail=
_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, Mar 19, 2019 at 12:57=
 AM timmmurphh--- via Fot &lt;<a href=3D"mailto:fot@autox.team.net";>fot@aut=
ox.team.net</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=
=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding=
-left:1ex"><div lang=3D"EN-US"><div class=3D"gmail-m_-6480941782483154343Wo=
rdSection1"><p class=3D"MsoNormal">On page 1.130 and 1.131 of the Workshop =
Manual it describes the procedure for obtaining the correct clearance or fl=
oat for the distributor gear driven by the camshaft.=C2=A0 It gives two sce=
narios: 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 doesn=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 cleara=
nce and added a 0.010 shim under the gear to get the desired 0.006 clearanc=
e.=C2=A0 Has anybody else had this experience?=C2=A0 And what did you do ab=
out it.<u></u><u></u></p><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><p =
class=3D"MsoNormal">Tim Murphy<u></u><u></u></p></div></div>_______________=
________________________________<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"; rel=3D"noreferrer" target=3D"_blank">=
http://www.fot-racing.com</a><br>
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et=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/pipermail/fot"; rel=3D"noreferrer" t=
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<br>
</blockquote></div>

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