[TR] Transmission Woes

[Jim Henningsen]

Dean and all,
Thanks for the replies on my tranny woes. Looks like another pull the box out
and have it checked.  Think I will wait until the summer Florida heat.  Too
much good driving weather right now.
All the best,
Jim Henningsen
Ocala, FL

Sent from my iPad

On Mar 22, 2013, at 9:06 AM, Dean Tetterton <tr3a58 at verizon.net> wrote:

> I found a nice article on the VTR web site that puts a good light on
> the TR Synchro problems. Written by Bill Kelly.
> http://www.vtr.org/maintain/synchromesh.shtml
>
> Pay close attention to paragraph 3. The tension of the spring loaded
> balls determines how much pressure is applied to the brass rings and
> then to the gear. Weak springs and not enough pressure to match the
> speed of the gears. The higher the RPM when shifting and the more
> work they need to do. The springs are cheap and easy to replace while
> doing the tranny.
>
> Dean Tetterton
>
> On Mar 20, 2013, at 1:17 PM, Jim Henningsen wrote:
>
>> 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
>>
>> Sent from my iPad