Subject: [TR] Speedometer drive in J-type OD

From: "Mark Hooper" <[email-masked]>
Date: Mon, 27 May 2019 23:38:09 -0400

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--0528-0338-09-03-PART_BREAK

Hello oh List:

My 72 TR6's speedometer has stopped working completely. It was jumping more 
and more wildly and now is completely dead. Since the cable seems to turn 
freely in the casing I'm pretty certain the drive gear down below has just 
lost too many teeth to engage. Memory tells me the drive is plastic. I have 
a J-type OD in my car. I ordered it built up by the Laycock de Normanville 
descendants who work (I am told) with the original tooling. I had it done 
with the Volvo gearing (1.25). Three questions:

1 - Can I pull the gear out without having to remove the OD ? It looks like 
it's removable.

2 - Will I end up with a flood of transmission oil all over the place. i.e. 
should I drain it first?

3 - How do I count/measure to know which replacement gear to buy?

Thanks in advance for any helpful advice out there.

Mark Hooper
1972 TR6
--0528-0338-09-03-PART_BREAK
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<html><body>
<div style=3D"font-size: 13.3333px; font-family: tahoma; color: rgb(0, 0, 0=
); font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">Hello oh List:</div>

<div style=3D"font-size: 13.3333px; font-family: tahoma; color: rgb(0, 0, 0=
); font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">&nbsp;</div>

<div style=3D"font-size: 13.3333px; font-family: tahoma; color: rgb(0, 0, 0=
); font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">My 72 TR6&#39;s speedom=
eter has stopped working completely. It was jumping more and more wildly an=
d now is completely dead.&nbsp;Since the cable seems to turn freely in the =
casing I&#39;m pretty certain the drive gear down below has just lost too m=
any teeth to engage. Memory tells me the drive is plastic. I have a J-type =
OD in my car. I ordered it built up by the Laycock de Normanville descendan=
ts who work (I am told) with the original tooling. I had it done with the V=
olvo gearing (1.25). Three&nbsp;questions:</div>

<div style=3D"font-size: 13.3333px; font-family: tahoma; color: rgb(0, 0, 0=
); font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">&nbsp;</div>

<div style=3D"font-size: 13.3333px; font-family: tahoma; color: rgb(0, 0, 0=
); font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">1 - Can I pull the gear=
 out without having to remove the OD ? It looks like it&#39;s removable.</d=
iv>

<div style=3D"font-size: 13.3333px; font-family: tahoma; color: rgb(0, 0, 0=
); font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">&nbsp;</div>

<div style=3D"font-size: 13.3333px; font-family: tahoma; color: rgb(0, 0, 0=
); font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">2 - Will I end up with =
a flood of transmission oil all over the place. i.e. should I drain it firs=
t?</div>

<div style=3D"font-size: 13.3333px; font-family: tahoma; color: rgb(0, 0, 0=
); font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">&nbsp;</div>

<div style=3D"font-size: 13.3333px; font-family: tahoma; color: rgb(0, 0, 0=
); font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">3 - How do I count/meas=
ure to know which replacement gear to buy?</div>

<div style=3D"font-size: 13.3333px; font-family: tahoma; color: rgb(0, 0, 0=
); font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">&nbsp;</div>

<div style=3D"font-size: 13.3333px; font-family: tahoma; color: rgb(0, 0, 0=
); font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">Thanks in advance for a=
ny helpful advice out there.</div>

<div style=3D"font-size: 13.3333px; font-family: tahoma; color: rgb(0, 0, 0=
); font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">&nbsp;</div>

<div style=3D"font-size: 13.3333px; font-family: tahoma; color: rgb(0, 0, 0=
); font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">Mark Hooper</div>

<div style=3D"font-size: 13.3333px; font-family: tahoma; color: rgb(0, 0, 0=
); font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">1972 TR6</div>

<div style=3D"font-family: tahoma; color: rgb(0, 0, 0); font-size: 13.3333p=
x; font-weight: 400; font-style: normal; background: none 0% 0% / auto repe=
at scroll padding-box border-box rgba(0, 0, 0, 0);">
<blockquote class=3D"as91pFk8AX8sDPOUp66RUy8IoCRjefxNG8oLk8fg" style=3D"PAD=
DING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 =
2px solid; MARGIN-RIGHT: 0px">
<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black">&nbsp=
;</div>
</blockquote>
</div>
</body></html>

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** [email-masked] **

Archive: http://www.team.net/pipermail/triumphs  http://www.team.net/archive

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From: Sujit Roy <[email-masked]>
Date: Tue, 28 May 2019 07:03:49 -0700

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I have a j type on the stag and no brackets are in the way. U can get to
it. Oil will come out not sure how much. Change two o rings while u have it
out. Google the no. Of teeth for the 6. I have a j type for a dolomite
sprint and had to swap out the gear. .

 The no. Of teeth were different as well as the length

Just fty. At the end of the OD is a stamped. On the Stag and sprint are 6
start. This is the no. Of threads on the big gear in the OD.

Sujit

On Mon, May 27, 2019, 8:38 PM Mark Hooper <[email-masked]> wrote:

> Hello oh List:
>
> My 72 TR6's speedometer has stopped working completely. It was jumping
> more and more wildly and now is completely dead. Since the cable seems to
> turn freely in the casing I'm pretty certain the drive gear down below has
> just lost too many teeth to engage. Memory tells me the drive is plastic. I
> have a J-type OD in my car. I ordered it built up by the Laycock de
> Normanville descendants who work (I am told) with the original tooling. I
> had it done with the Volvo gearing (1.25). Three questions:
>
> 1 - Can I pull the gear out without having to remove the OD ? It looks
> like it's removable.
>
> 2 - Will I end up with a flood of transmission oil all over the place.
> i.e. should I drain it first?
>
> Donate: http://www.team.net/donate.html
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/triumphs/[email-masked]
>

--0000000000000d88a30589f323f7
Content-Transfer-Encoding: quoted-printable

<div dir=3D"auto">I have a j type on the stag and no brackets are in the wa=
y. U can get to it. Oil will come out not sure how much. Change two o rings=
 while u have it out. Google the no. Of teeth for the 6. I have a j type fo=
r a dolomite sprint and had to swap out the gear. .<div dir=3D"auto"><br></=
div><div dir=3D"auto">=C2=A0The no. Of teeth were different as well as the =
length=C2=A0</div><div dir=3D"auto"><br></div><div dir=3D"auto">Just fty. A=
t the end of the OD is a stamped. On the Stag and sprint are 6 start. This =
is the no. Of threads on the big gear in the OD.=C2=A0</div><div dir=3D"aut=
o"><br></div><div dir=3D"auto">Sujit=C2=A0</div><div dir=3D"auto"><br></div=
><div dir=3D"auto">=C2=A0</div></div><br><div class=3D"gmail_quote"><div di=
r=3D"ltr" class=3D"gmail_attr">On Mon, May 27, 2019, 8:38 PM Mark Hooper &l=
t;<a href=3D"mailto:[email-masked]">[email-masked]</a>&=
gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0=
 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>
<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">Hello oh List:</div>

<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">=C2=A0</div>

<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">My 72 TR6&#39;s speedometer has stopped wo=
rking completely. It was jumping more and more wildly and now is completely=
 dead.=C2=A0Since the cable seems to turn freely in the casing I&#39;m pret=
ty certain the drive gear down below has just lost too many teeth to engage=
. Memory tells me the drive is plastic. I have a J-type OD in my car. I ord=
ered it built up by the Laycock de Normanville descendants who work (I am t=
old) with the original tooling. I had it done with the Volvo gearing (1.25)=
. Three=C2=A0questions:</div>

<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">=C2=A0</div>

<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">1 - Can I pull the gear out without having=
 to remove the OD ? It looks like it&#39;s removable.</div>

<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">=C2=A0</div>

<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">2 - Will I end up with a flood of transmis=
sion oil all over the place. i.e. should I drain it first?</div>

<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">=C2=A0</div>

<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">3 - How do I count/measure to know which r=
eplacement gear to buy?</div>

<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">=C2=A0</div>

<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">Thanks in advance for any helpful advice o=
ut there.</div>

<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">=C2=A0</div>

<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">Mark Hooper</div>

<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">1972 TR6</div>

<div style=3D"font-family:tahoma;color:rgb(0,0,0);font-size:13.3333px;font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">
<blockquote class=3D"m_1164918348580792061as91pFk8AX8sDPOUp66RUy8IoCRjefxNG=
8oLk8fg" style=3D"PADDING-RIGHT:0px;PADDING-LEFT:5px;MARGIN-LEFT:5px;BORDER=
-LEFT:#000000 2px solid;MARGIN-RIGHT:0px">
<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black">=C2=
=A0</div>
</blockquote>
</div>
</div>
** <a href=3D"mailto:[email-masked]" target=3D"_blank" rel=3D"nore=
ferrer">[email-masked]</a> **<br>
<br>
errer" target=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/pipermail/triumphs" rel=3D"noreferr=
er noreferrer" target=3D"_blank">http://www.team.net/pipermail/triumphs</a>=
=C2=A0 <a href=3D"http://www.team.net/archive" rel=3D"noreferrer noreferrer=
" target=3D"_blank">http://www.team.net/archive</a><br>
<br>
hs/[email-masked]" rel=3D"noreferrer noreferrer" target=3D"_blank">h=
ttp://autox.team.net/mailman/options/triumphs/[email-masked]</a><br>
</blockquote></div>

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From: Sujit Roy <[email-masked]>
Date: Tue, 28 May 2019 07:04:46 -0700

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Another source in UK. Overdrive Spares.

>> http://autox.team.net/mailman/options/triumphs/[email-masked]

--000000000000b0d6db0589f328d9
Content-Transfer-Encoding: quoted-printable

<div dir=3D"auto">Another source in UK. Overdrive Spares.=C2=A0</div><br><d=
iv class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, May =
28, 2019, 7:03 AM Sujit Roy &lt;<a href=3D"mailto:[email-masked]">tr=
[email-masked]</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quot=
e" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">=
<div dir=3D"auto">I have a j type on the stag and no brackets are in the wa=
y. U can get to it. Oil will come out not sure how much. Change two o rings=
 while u have it out. Google the no. Of teeth for the 6. I have a j type fo=
r a dolomite sprint and had to swap out the gear. .<div dir=3D"auto"><br></=
div><div dir=3D"auto">=C2=A0The no. Of teeth were different as well as the =
length=C2=A0</div><div dir=3D"auto"><br></div><div dir=3D"auto">Just fty. A=
t the end of the OD is a stamped. On the Stag and sprint are 6 start. This =
is the no. Of threads on the big gear in the OD.=C2=A0</div><div dir=3D"aut=
o"><br></div><div dir=3D"auto">Sujit=C2=A0</div><div dir=3D"auto"><br></div=
r=3D"ltr" class=3D"gmail_attr">On Mon, May 27, 2019, 8:38 PM Mark Hooper &l=
t;<a href=3D"mailto:[email-masked]" target=3D"_blank" rel=3D"nore=
ferrer">[email-masked]</a>&gt; wrote:<br></div><blockquote class=
=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padd=
ing-left:1ex"><div>
<div style=3D"font-size:13.3333px;font-family:tahoma;color:rgb(0,0,0);font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">Hello oh List:</div>

<div style=3D"font-family:tahoma;color:rgb(0,0,0);font-size:13.3333px;font-=
weight:400;font-style:normal;background:none 0% 0%/auto repeat scroll paddi=
ng-box border-box rgba(0,0,0,0)">
<blockquote class=3D"m_-858794433259126859m_1164918348580792061as91pFk8AX8s=
DPOUp66RUy8IoCRjefxNG8oLk8fg" style=3D"PADDING-RIGHT:0px;PADDING-LEFT:5px;M=
ARGIN-LEFT:5px;BORDER-LEFT:#000000 2px solid;MARGIN-RIGHT:0px">
<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black">=C2=
=A0</div>
</blockquote>
</div>
</div>
** <a href=3D"mailto:[email-masked]" rel=3D"noreferrer noreferrer"=
 target=3D"_blank">[email-masked]</a> **<br>
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errer noreferrer" target=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/pipermail/triumphs" rel=3D"noreferr=
er noreferrer noreferrer" target=3D"_blank">http://www.team.net/pipermail/t=
riumphs</a>=C2=A0 <a href=3D"http://www.team.net/archive" rel=3D"noreferrer=
 noreferrer noreferrer" target=3D"_blank">http://www.team.net/archive</a><b=
r>
<br>
hs/[email-masked]" rel=3D"noreferrer noreferrer noreferrer" target=
=3D"_blank">http://autox.team.net/mailman/options/triumphs/triumphstag@gmai=
l.com</a><br>
</blockquote></div>
</blockquote></div>

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From: "Randall" <[email-masked]>
Date: Tue, 28 May 2019 10:22:10 -0700

I would definitely check the angle drive first.  A well-known weak spot.

Also check that your speedo head turns freely.  If the bushing gets dry, it
can drag and get hot, which makes it drag harder, which makes it get hotter
... Until the angle drive breaks.  Then the bushing cools off and most of
the drag goes away.

-- Randall

> My 72 TR6's speedometer has stopped working completely. It 
> was jumping more and more wildly and now is completely dead. 
> Since the cable seems to turn freely in the casing I'm pretty 
> certain the drive gear down below has just lost too many 
> teeth to engage.

---

From: TERRY SMITH <[email-masked]>
Date: Tue, 28 May 2019 15:29:17 -0400 (EDT)

This week my tach stopped working.  Began the dismantling process to check the cable, only to find out the cable had come undone from the tach.

Occasionally it's simple.  But that's not where I would normally put my money!

Terry

> On May 28, 2019 at 1:22 PM Randall <[email-masked]> wrote:
> 
> 
> Unsubscribe/Manage: http://autox.team.net/mailman/options/triumphs/[email-masked]