[Fot] Overdrive problem

[Dave]

Hello Friends,
A friend is having problems with a freshly serviced overdrive transmission in his street TR3.  It disengages under acceleration.  
The Brit shop that is working on it can not figure out the problem.  I've been told that it is building a little over 400psi and I guess that is not enough.  
The shop is really struggling with the problem and I know the FOT has discussed this problem before.
I'd like to be able to share tips and suggestions if anyone can help.

Thanks,
Dave H.

Sent from my iPad