I agree with Bob, but I'll share an experience I had in the off chance it
helps. I had a problem with my OD dropping out and/or cycling in and out.
After much trial and error and tracing with the volt meter, I figured out
that the problem was that the fiber washer that came with the replacement
gear level position switch was slightly too thick, resulting in intermittent
closure of the switch. Removed the washer and used Teflon tape instead,
problem solved.
Bruce Steele
Brea, CA
1960 BN7
-----Original Message-----
From: Healeys [mailto:healeys-bounces@autox.team.net] On Behalf Of Bob
Spidell
Sent: Monday, March 22, 2021 7:50 PM
To: healeys@autox.team.net
Subject: Re: [Healeys] overdrive problem
The shop manual has a comprehensive diagnostic flow chart; and maybe a
troubleshooting guide as well.
To make SWAGs, we need a little more info:
- does it stay in OD indefinitely, until he accelerates, or pop out
immediately?
- does it initially engage in 2-3 seconds, or take longer?
If the pump is weak, OD would be slow to engage and, once the accumulator
has engaged there might not be enough to hold OD. But, my guess would be
something electrical; possibly the relay.
Bob
On 3/22/2021 5:06 PM, healeymanjim via Healeys wrote:
> friends BT7 had o/d quit. solenoid was bad so replaced it. now it will
go into o/d but pop out when accelerating. any
> ideas what the cause is and the fix?
> _______________________________________________
>
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