Reply to: RE>>Seeking Advice re Gearbox/OD
Popping out of gear in a TR is almost always caused by bad syncro assemlies.
Not the balk rings (the shiny brass things many call syncros), but the slider
and hub combination itself. This is the gizmo that locks the driven gear on
the main shaft to the mainshaft, putting you in one gear or another. They
wear out. There is nothing you can do but replace them. They were getting
rare last time I did a trany, so I don't know what availability is like.
Contact TRF. Most folks do not replace them on rebuild because they are so
expensive. Interesting, most folks do replace the balk rings, even though the
only one that ususally wears out is second.
Scott St. Clair
'68 TR250
--------------------------------------
Date: 9/11/95 1:00 PM
To: Scott St. Clair
From: Ernest G. Janzen
>
>> My '76 TR6 has a non-functional O/D and the gearbox slips out of 3rd
>> gear when decellerating from high RPM's (around 3500-4000).
>
>I don't have an overdrive, but my '72 TR6 also pops out of 3rd on
>deceleration (more easily than Mike's, though--it doesn't take as much RPM
>to do it. Rolling is just about enough...)
>
>> 1) Does the 3rd gear problem require a gearbox rebuild, or is there a
>> quickie repair to solve that?
>
>And if it does require a rebuild, what specifically am I looking for? My
>box has been rebuilt twice in the past 3k miles, and this behavior began
>after the second rebuild. The parts are almost entirely shiny-new.
>
>If you have a response, please include me on your Cc list.
>
>Thanks,
>
This may be a common problem? I also have had extensive problems with
3ed slipping out, even after a rebuild. (TR6 without overdrive.)
Something about a thrust bearing and a recommendation not to keep the
shift cover too tight.
I also would appreciate being cc or having responses to this problem
posted to the net if it is a common a problem as I suspect.
Thank you.
Ernest Janzen
bc620@scn.org
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Date: Mon, 11 Sep 1995 09:12:00 -0700
From: bc620@scn.org (Ernest G. Janzen)
To: rkriggs@hsv28.pcmail.ingr.com
Subject: RE: Seeking Advice re Gearbox/OD
Cc: triumphs@autox.team.net
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