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Re: [Healeys] Overdrive problem

To: healeys@autox.team.net
Subject: Re: [Healeys] Overdrive problem
From: <sbyers@ec.rr.com>
Date: Tue, 18 Sep 2007 12:52:28 -0400
Thanks, Dave -
I rebuilt the overdrive about 1993, but I did not replace the springs.  My 
first thought was that the cone clutch might be somehow sticking to the brake 
ring and gradually releasing under tension of the springs in the absence of 
hydraulic pressure.  Thus the loud bang/spring sound I heard the first time 
when it released.

Knocking on the housing with a hammer might be a good one-time measure to free 
it up, but since it requires removal of the seats/console/carpet/tranny cover 
to get at the O/D housing, it is not a good approach for long.  Another 
overhaul might be in my future......:^P

Cheers!
Steve



---- Dave Russell <rusd@sitestar.net> wrote: 
> It happens sometimes. The cone clutch is disengaged from the OD position 
> by a set of springs. It's engaged by hydraulic pressure. If the clutch 
> facing gets worn or the springs become weak, the clutch may stick in the 
> OD position. Some folks have been able to release the stuck clutch by 
> rapping the OD housing with a lead hammer.
> 
> As was said, clearing the bleed hole in the operating valve might also 
> cure the problem, it's easy to check. If not, it may be time for a 
> general rebuild & new release springs.
> 
> Dave Russell
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