--===============4180717677461468230==
boundary="Apple-Mail=_63029946-63DE-4CCC-92A0-E4B94BCAEDE5"
--Apple-Mail=_63029946-63DE-4CCC-92A0-E4B94BCAEDE5
Content-Transfer-Encoding: quoted-printable
charset=windows-1252
thanks, guys. Between Glen, Bill and Jim, I know what to do. The =
factory manual instructions must be some truncated version of what they =
used, having specific jigs and manufacturing directions.
On Aug 29, 2015, at 10:17 PM, Bill Babcock wrote:
That=92s pretty slick, but it doesn=92t set the pinion height. The =
pinion height above the bearing determines where the teeth contact the =
drive gear. The lash from the shims on the right and left side of the =
spider determine the depth of engagement, but pinon height determines =
the point of engagement=97either at the base of the driven gear, the =
middle (where it=92s supposed to be) or the top. Unfortunately, lacking =
the factory gear bobs and gimcracks, the only way I know to do this is =
to guess, then install everything, paint the gear teeth with blue, and =
roll them through an engagement cycle. The pattern on the teeth tell you =
where you are. then take everything apart again, change stuff, and try =
again. Last time (two weeks ago) took me five tries to get it right, but =
that=92s better than the first time I did it. I can now fix two things =
at once (height and depth), and I=92ve learned to go in tiny increments =
(.003=94 or less if you have a skinnier shim=97the smallest from moss =
are .003=94 but my stash has some .001=94 in it of both the spider shims =
and the pinion shims. I don=92t worry too much about the bearing preload =
for either the pinion or the spider. I figure if I don=92t have shake in =
the pinion and can just barely get the diff out, then I=92m in the =
ballpark. I=92m not trying to build a 50K mile, noiseless diff, I just =
want it to hold together in races and not be louder than my singing when =
I=92m racing (yes, I do).=20
> On Aug 29, 2015, at 3:42 PM, James J Dolan <jdolan@voyagerhldgs.com> =
wrote:
>=20
> Wow
> Imagine building Triumphs on an assembly line and doing a few hundred =
rear axles a day that way.=20
>=20
> A Guinness or two at lunch and the next thing the whole contraption =
falls over and the lead shot goes everywhere, and the poor bloke spends =
the entire work shift picking up tiny marbles. Quality control problem!!
>=20
> Sure explains why the damn cars stopped being made and the British no =
longer have an Empire.=20
>=20
> And to think we race them......
>=20
> All joking aside, that is pretty creative.=20
>=20
> Jim
>=20
> GT6 #6 Kastner
> GT6 #4 Group 44
> GT6 #5
>=20
> Sent from my iPhone
>=20
> On Aug 29, 2015, at 4:13 PM, J.C. Hassall <jhassall@gmail.com> wrote:
>=20
> Scott,
>=20
> This is how I set up my TR4 pinion. A 1/2" square piece of steel =
stock inserted into a socket. The steel bar thru the square stock was =
counter balanced to give zero rotation. With inch increments lightly =
notched into the rod, it was easy to locate the bag of lead shot at =
precise locations. When the rod tipped, the pinion torque was dead on. =
BTW, the 2x4 was supporting the diff front, not the drive flange. It =
only took a few trials to tighten the nut to the required torque.
>=20
> hth
>=20
> jim
>=20
> <pinion preload tool.JPG>
>=20
>=20
>=20
>=20
>=20
>=20
>=20
>=20
>=20
>=20
>=20
>=20
>=20
>=20
>=20
> <pinion preload tool.JPG>
>=20
> On Sat, Aug 29, 2015 at 2:54 PM, Scott Janzen <sjanzen@me.com> wrote:
> I'm replacing the bearings in the diff (w/Timken USA) and am puzzled =
by the "set pinion height" instructions. Here's what the workshop =
manual says (paraphrase):
> - install the pinion head bearing without the normal 0.10" spacer =
between it and the pinion.
> - install the pinion shaft with bearings, no bearing spacer, shims or =
oil seal, and torque to 12-16 ft-lb
> - put a dial gauge on the housing with the plunger contacting the =
pinion, then putting downward pressure on the gauge, obtain a maximum =
reading (appears to be one of those special factory tools in the photo =
though none is cited)
> -this reading, subtracted from the normal spacer thickness of 0.10", =
determines the thickness of the "selective spacer required".
>=20
> Huh? first of all, the spacer is 0.10" so how can there be a =
different thickness spacer? The diagram shows no shims at this =
location. Second and more important, why would the assembly move at all =
and produce any dial indicator readings, given that the pinion bearing =
assembly is torqued to 12-16 lb? =20
>=20
> These are not the instructions for shimming the spacer between the =
bearings, I understand those - though I am looking for ideas for a =
homemade preload gauge I could easily make up.
>=20
> Are the instructions missing something or am I?
>=20
> thanks!
>=20
> _______________________________________________
> fot@autox.team.net
>=20
> http://www.fot-racing.com
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/jhassall@gmail.com
>=20
>=20
>=20
>=20
> _______________________________________________
> fot@autox.team.net
>=20
> http://www.fot-racing.com
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/jdolan@voyagerhldgs.com
>=20
>=20
> _______________________________________________
> fot@autox.team.net
>=20
> http://www.fot-racing.com
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/bill@ponostyle.com
>=20
>=20
Bill Babcock
Bill@ponostyle.com
Editor: Ponostyle
Celebrating Water
Editor: Xtreme Geezer
Fitness and Fun After Forty
503.936.7660
http://www.PonoStyle.com
http://www.Xgeez.com
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/archive
http://autox.team.net/mailman/options/fot/sjanzen@me.com
--Apple-Mail=_63029946-63DE-4CCC-92A0-E4B94BCAEDE5
Content-Transfer-Encoding: quoted-printable
charset=windows-1252
<html><head></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space; =
">thanks, guys. Between Glen, Bill and Jim, I know what to do. =
The factory manual instructions must be some truncated version of =
what they used, having specific jigs and manufacturing =
directions.<div><br><div><div>On Aug 29, 2015, at 10:17 PM, Bill Babcock =
wrote:</div><br class=3D"Apple-interchange-newline"><meta =
http-equiv=3D"Content-Type" content=3D"text/html charset=3Dutf-8"><div =
style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; =
-webkit-line-break: after-white-space;" class=3D"">That=92s pretty =
slick, but it doesn=92t set the pinion height. The pinion height above =
the bearing determines where the teeth contact the drive gear. The lash =
from the shims on the right and left side of the spider determine the =
depth of engagement, but pinon height determines the point of =
engagement=97either at the base of the driven gear, the middle (where =
it=92s supposed to be) or the top. Unfortunately, lacking the factory =
gear bobs and gimcracks, the only way I know to do this is to guess, =
then install everything, paint the gear teeth with blue, and roll them =
through an engagement cycle. The pattern on the teeth tell you where you =
are. then take everything apart again, change stuff, and try again. Last =
time (two weeks ago) took me five tries to get it right, but that=92s =
better than the first time I did it. I can now fix two things at once =
(height and depth), and I=92ve learned to go in tiny increments (.003=94 =
or less if you have a skinnier shim=97the smallest from moss are .003=94 =
but my stash has some .001=94 in it of both the spider shims and the =
pinion shims. I don=92t worry too much about the bearing preload for =
either the pinion or the spider. I figure if I don=92t have shake in the =
pinion and can just barely get the diff out, then I=92m in the ballpark. =
I=92m not trying to build a 50K mile, noiseless diff, I just want it to =
hold together in races and not be louder than my singing when I=92m =
racing (yes, I do). <div class=3D""><br class=3D""></div><div =
class=3D""><br class=3D""><div><blockquote type=3D"cite" class=3D""><div =
class=3D"">On Aug 29, 2015, at 3:42 PM, James J Dolan <<a =
href=3D"mailto:jdolan@voyagerhldgs.com"; =
class=3D"">jdolan@voyagerhldgs.com</a>> wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D"">
<meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dus-ascii" class=3D"">
<div dir=3D"auto" class=3D"">
<div class=3D"">Wow</div>
<div class=3D"">Imagine building Triumphs on an assembly line and doing =
a few hundred rear axles a day that way. </div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">A Guinness or two at lunch and the next thing the whole =
contraption falls over and the lead shot goes everywhere, and the poor =
bloke spends the entire work shift picking up tiny marbles. Quality =
control problem!!</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Sure explains why the damn cars stopped being made and =
the British no longer have an Empire. </div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">And to think we race them......</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">All joking aside, that is pretty creative. </div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Jim</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">GT6 #6 Kastner</div>
<div class=3D"">GT6 #4 Group 44</div>
<div class=3D"">GT6 #5<br class=3D"">
<br class=3D"">
Sent from my iPhone</div>
<div class=3D""><br class=3D"">
On Aug 29, 2015, at 4:13 PM, J.C. Hassall <<a =
href=3D"mailto:jhassall@gmail.com"; class=3D"">jhassall@gmail.com</a>> =
wrote:<br class=3D"">
<br class=3D"">
</div>
<div class=3D"">
<div dir=3D"ltr" class=3D"">
<div class=3D"">Scott,
<div class=3D""><br class=3D"">
</div>
<div class=3D"">This is how I set up my TR4 pinion. A 1/2" square =
piece of steel stock inserted into a socket. The steel bar thru =
the square stock was counter balanced to give zero rotation. With =
inch increments lightly notched into the rod, it was easy to locate the
bag of lead shot at precise locations. When the rod tipped, the =
pinion torque was dead on. BTW, the 2x4 was supporting the diff =
front, not the drive flange. It only took a few trials to tighten =
the nut to the required torque.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">hth</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">jim</div>
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><span id=3D"cid:ii_14f7b11188c64b9a"><pinion preload =
tool.JPG></span><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
</div>
<span id=3D"cid:ii_14f7b0f6d0234281"><pinion preload =
tool.JPG></span><br class=3D"">
</div>
<div class=3D"gmail_extra"><br class=3D"">
<div class=3D"gmail_quote">On Sat, Aug 29, 2015 at 2:54 PM, Scott Janzen =
<span dir=3D"ltr" class=3D"">
<<a href=3D"mailto:sjanzen@me.com"; target=3D"_blank" =
class=3D"">sjanzen@me.com</a>></span> wrote:<br class=3D"">
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 =
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style=3D"word-wrap:break-word" class=3D"">I'm replacing the =
bearings in the diff (w/Timken USA) and am puzzled by the "set pinion =
height" instructions. Here's what the workshop manual says =
(paraphrase):
<div class=3D""> - install the pinion head bearing without the =
normal 0.10" spacer between it and the pinion.</div>
<div class=3D"">- install the pinion shaft with bearings, no bearing =
spacer, shims or oil seal, and torque to 12-16 ft-lb</div>
<div class=3D"">- put a dial gauge on the housing with the plunger =
contacting the pinion, then putting downward pressure on the gauge, =
obtain a maximum reading (appears to be one of those special =
factory tools in the photo though none is cited)</div>
<div class=3D"">-this reading, subtracted from the normal spacer =
thickness of 0.10", determines the thickness of the "selective spacer =
required".</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Huh? first of all, the spacer is 0.10" so how can =
there be a different thickness spacer? The diagram shows no shims =
at this location. Second and more important, why would the =
assembly move at all and produce any dial indicator readings, given that =
the
pinion bearing assembly is torqued to 12-16 lb? </div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">These are not the instructions for shimming the spacer =
between the bearings, I understand those - though I am looking for ideas =
for a homemade preload gauge I could easily make up.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Are the instructions missing something or am I?</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">thanks!</div>
</div>
<br class=3D"">
_______________________________________________<br class=3D"">
<a href=3D"mailto:fot@autox.team.net"; class=3D"">fot@autox.team.net</a><br=
class=3D"">
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<br class=3D"">
<br class=3D"">
</blockquote>
</div>
<br class=3D"">
</div>
</div>
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<div style=3D"color: rgb(0, 0, 0); font-family: Helvetica; font-style: =
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