[Healeys] BN2 Overdrive

[jholekamp at sbcglobal.net (Jay Holekamp)]

"Get a guage and check the oil pressure in the unit.  The unit
needs about
420# to stay engaged.
If your pressure is lower than that, the most likely
problem is the
o-rings in the accumulator."

If you get to this point in
overdrive the fault diagnosis, I can supply the 
needed overdrive oil pressure
gauge: http://tiny.cc/odgauge

brgds, Jay