[Healeys] Overdrive problem

[Jay Holekamp]

If you want to measure the pressure your overdrive is making (low/loss of
pressure a likely cause of your problem), I can provide the needed oil
pressure 
gauge and associated connection fitings:

http://tiny.cc/odgauge
 
Jay Holekamp


Hi Neil,
Based upon my experience i would think that the oil
type is not likely to
be the real problem.
You should check that the operating
valve is opening all the way as per the
workshop manual as that is very easy
and can cause problems but again not
the most likely cause.
My bet would be
that the pressure accumulator bore and piston are badly
scored and allowing
oil to pass. This can, with considerable effort be
corrected without removing
the gearbox.
Wear and damage on other parts can contribute to the leakage but
most of
those, like the operating pistons require removal of the unit for
repair.

-- 
Michael Salter

*I have BJ8 water pump kits!!*