[Healeys] Austin Healey BN2 overdrive issue

[Hank Leach]

I feel the next step is to remove the solenoid cover and clean the non
return valve, check that it is not damaged-seat the ball and have a
look at the accumulator piston and bore. How well was the solenoid
adjusted to go into and out of OD-binding of shaft or smooth operation
and proper adjustment? If you reversed the car with the OD engaged,
the clutch in the annulus is probably damaged and thrust ring broken
which will warrant a tear down. Hank. 

	-----------------------------------------From: "Michael Salter" 
To: "David Wirken"
Cc: "healeys at autox.team.net"
Sent: Friday June 23 2023 12:59:33PM
Subject: Re: [Healeys] Austin Healey BN2 overdrive issue

 My next step would be to fit a pressure gauge to determine if the
problem is due to residual pressure or the clutch sticking (something
I have never encountered). 

 On Fri., Jun. 23, 2023, 1:03 p.m. David Wirken via Healeys,  wrote:
 I have a issue with the overdrive not disengaging and becoming stuck
in OD after disengaging, it’s not an electrical issue and we have to
rock the car back and forth until we hear the clutch pop loose and off
we go until I engage it again and then try to disengage it , I have
pulled the operating valve and cleaned real good the tiny hole in the
shaft and have drilled it out one size bigger as directed by a Healey
restorer , to no avail.
 Any helpful hints ?

 DW
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