[Healeys] Overdrive problem

David Nock healeydoc at sbcglobal.net
Tue Sep 18 10:59:04 MDT 2007


Check the solenoid adjustment. We have had some that move to far and  
they cause the cone clutch to stick.




David Nock
British Car Specialists
Stockton Ca 95205
209-948-8767

www.britishcarspecialists.com
.
.

On Sep 18, 2007, at 9:52 AM, <sbyers at ec.rr.com> wrote:

> 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 at 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
> _______________________________________________
> healeydoc at sbcglobal.net
>
> Healeys at autox.team.net
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