I had the same problem. I doubt the synchros can cause this. Rather, my
understanding is that the gear teeth wear to a tapered shape over time which
push themselves apart. The solution therefore is to replace the offending
gears. In my case, I had a spare no OD box which shifted well so I took the
overdrive off the offending box and rebuilt the spare around the overdrive.
A gearbox overhaul is not too hard if you follow the sequence and have good
snap ring pliers.
I believe the Roadster Factory does over a rebuilding service, as does
Triumphs Only in San Jose.
Good luck,
Dale
> -----Original Message-----
> From: EISANDIEGO@aol.com [SMTP:EISANDIEGO@aol.com]
> Sent: Thursday, December 03, 1998 6:43 AM
> To: fot@autox.team.net
> Subject: Advice on transmission
>
> We have recently purchased a TR3B that has the original factory TR4
> transmission. The car is popping out of gear. Before i have my local
> mechanic
> start anything on this, I would like some advice from you more experienced
> FOT
> members.
>
> 1. The mechanic thinks this is a problem with the syncros....does that
> sound
> right to you?
> 2. Is replacement of the syncros straightforward or does it need a
> specialist
> ?
> 3. If it is the syncros, any recommendations on replacement sources ?
> 4. What is the cost of a replacement TR4 transmission ?
> 5. If I need a specialist, any recommendation down here in or near the San
> Diego ?
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