[TR] Transmission Woes

[Dave]

since I saw this post I thought I would contribute a similar tale of woe.

I had my od tranny rebuilt, and then rebuilt twice more under warranty 
because sometimes it shifts smoothly up or down, and sometimes it grinds. 
this guy has done numerous boxes, but they couldn't resolve the issue.

I haven't noticed whether it matters if I am "powering" into the shifts.

-----Original Message----- 
From: Jim Henningsen
Sent: Wednesday, March 20, 2013 12:17 PM
To: triumphs at autox.team.net
Subject: [TR] Transmission Woes

List:
I have a jtype od transmission that was rebuilt about 8 years ago.  Started
having third gear grinding issues on hard acceleration and deceleration 
(auto
cross and spirited driving) so had new German made brass synchros installed
about 2 years ago. Got rid of Taiwanese synchros installed during original
rebuild as we thought that was the issue. The new German synchros didn't 
solve
the problem.  The tranny shifts fine at lower rpms, but when I goose it and
want powershifts it grinds slightly going into third (from second and 
fourth)
and a little on the hard down shifts in second.  Hard shifts are revving up 
to
5500 rpms.  The clutch was rebuilt about 10 years ago with a Borg and beck,
and guest throw out bearing.  Clutch looked fine when we inspected on latest
synchro change.

Any ideas what this could be?

Thanks,
Jim Henningsen
Ocala, FL
75 TR6
62 TR4