Hi Bob,
As Steve suggests the most likely cause is the accumulator. Either the
"O" ring between the case and the accumulator body or excessive scoring
of the bore.
You can remove the accumulator from the overdrive without removing the
gearbox as it is positioned under the side cover upon which the solenoid
is mounted.
It can be a little tricky to remove but I have a combination of battery
hold down "J" bolt and pry bar which works quite well.
New assemblies are available from the usual suspects but are not
inexpensive as I recall.
However, the one thing that I would recommend that you check before
pulling it out is that the solenoid is correctly adjusted. Similar
problems can be experienced if the operating valve ball is not quite
lifting far enough.
Michael Salter
www.precisionsportscar.com
-----Original Message-----
From: owner-healeys@autox.team.net [mailto:owner-healeys@autox.team.net]
On Behalf Of Roland Wilhelmy
Sent: Wednesday, July 14, 2004 7:43 PM
To: BlkBT7@aol.com; healeys@autox.team.net
Subject: posting from Bob Brown (was HTML) Subject: OD Question
Subject: Re: OD Question
Date: 7/14/2004, 2:05 PM
From: Bob Brown <BlkBT7@aol.com>
To: Healeys <healeys@autox.team.net>
Organization: Home
I have a condition that I have not seen addressed here previously and
would like
suggestions on what to check.
My BT7 OD works great on short trips, but on long trips I find that
after about an
hour of driving once I disengage the OD for any reason (stopping). The
OD will not
engage or will be do so intermittently.
I check the fluid level regularly. I replaced the solenoid recently,
and the firewall switch
a couple of years ago. Suspecting that the electrical units were
affected by heat, but
neither solved the problem.
Suggestions for diagnosing or solving?
Bob
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