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Re: [TR] A-type OD questions

To: triumphs list <triumphs@autox.team.net>
Subject: Re: [TR] A-type OD questions
From: Allen Hess <allen.k.hess@gmail.com>
Date: Mon, 4 Sep 2023 16:19:34 -0400
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
References: <mailman.4.1693850403.12783.triumphs@autox.team.net>
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I do believe (haven=E2=80=99t checked the manual) that the isolator =
switches on top of the gearbox have paper washer shims to adjust the =
on/off of the switch. There should be a 2nd gear switch and if you have =
backup lights, one on reverse. So I think you do have to pull the trans =
cover.

Allen

>=20
> I have had my TR4A transmission converted to an A-type OD by  noted =
specialist, and the removal/installation service was done by a reputable =
shop.
> =20
> I just got it back and the OD seems to work perfectly in 4th gear. =20
> =20
> In Third, It will work for a short time, then goes out of OD.  It =
appears that it is related to the isolator switch.  If I gently push the =
shifter forward, it stays in OD just fine.  If I pull it back slightly =
(still in 3rd), it does out of OD, and when I push it slightly forward =
again, OD re-engages.
> =20
> In second gear, it does not ever engage OD. I did not see the =
transmission after the conversion, so I do not know IF there is a 2nd =
gear isolator switch.  But, I think there OUGHT to be..
> =20
> I picked up the car at the end of last week, and I am sure the shops =
will make good on a perfectly functioning OD.  But I want to know if =
this is a simple adjustment issue.  Maybe I can do it myself.  I can get =
the car on a lift and do the work from below if it were feasible.
> =20
> I would rather not pull the interior to access the top, but maybe it =
is necessary.
> =20
> Any advice/experience with this sort of issue?
> =20
> -Tony
>=20
>=20
> _______________________________________________
>=20
> Triumphs mailing list
> Triumphs@autox.team.net
> http://autox.team.net/mailman/listinfo/triumphs


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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D"">I =
do believe (haven=E2=80=99t checked the manual) that the isolator =
switches on top of the gearbox have paper washer shims to adjust the =
on/off of the switch. There should be a 2nd gear switch and if you have =
backup lights, one on reverse. So I think you do have to pull the trans =
cover.<div class=3D""><br class=3D""></div><div class=3D"">Allen</div><div=
 class=3D""><br class=3D""><div><blockquote type=3D"cite" class=3D""><div =
class=3D""><div style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px;" class=3D""><br class=3D""></div>

 =20
  <meta charset=3D"UTF-8" class=3D"">=20
=20
 <div class=3D"">
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   <span style=3D"font-family: helvetica; font-size: 12pt;" class=3D"">I =
have had my TR4A transmission converted to an A-type OD by&nbsp; noted =
specialist, and the removal/installation service was done by a reputable =
shop.</span>
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   &nbsp;
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   <span style=3D"font-family: helvetica; font-size: 12pt;" class=3D"">I =
just got it back and the OD seems to work perfectly in 4th =
gear.&nbsp;&nbsp;</span>
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   &nbsp;
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   <span style=3D"font-family: helvetica; font-size: 12pt;" class=3D"">In =
Third, It will work for a short time, then goes out of OD.&nbsp; It =
appears that it is related to the isolator switch.&nbsp; If I gently =
push the shifter forward, it stays in OD just fine.&nbsp; If I pull it =
back slightly (still in 3rd), it does out of OD, and when I push it =
slightly forward again, OD re-engages.</span>
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   &nbsp;
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   <span style=3D"font-family: helvetica; font-size: 12pt;" class=3D"">In =
second gear, it does not ever engage OD. I did not see the transmission =
after the conversion, so I do not know IF there is a 2nd gear isolator =
switch.&nbsp; But, I think there OUGHT to be..</span>
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   &nbsp;
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   <span style=3D"font-family: helvetica; font-size: 12pt;" class=3D"">I =
picked up the car at the end of last week, and I am sure the shops will =
make good on a perfectly functioning OD.&nbsp; But I want to know if =
this is a simple adjustment issue.&nbsp; Maybe I can do it myself.&nbsp; =
I can get the car on a lift and do the work from below if it were =
feasible.</span>
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   &nbsp;
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   <span style=3D"font-family: helvetica; font-size: 12pt;" class=3D"">I =
would rather not pull the interior to access the top, but maybe it is =
necessary.</span>
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   &nbsp;
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   <span style=3D"font-family: helvetica; font-size: 12pt;" class=3D"">Any=
 advice/experience with this sort of issue?</span>
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   &nbsp;
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: =
helvetica,arial,sans-serif; color: #333333;">
   <span style=3D"font-family: helvetica; font-size: 12pt;" =
class=3D"">-Tony</span>
  </div>
 </div>
<br class=3D""><br =
class=3D"">_______________________________________________<br =
class=3D""><br class=3D"">Triumphs mailing list<br class=3D""><a =
href=3D"mailto:Triumphs@autox.team.net"; =
class=3D"">Triumphs@autox.team.net</a><br =
class=3D"">http://autox.team.net/mailman/listinfo/triumphs<br =
class=3D""></div></blockquote></div><br class=3D""></div></body></html>=

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