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[Healeys] Overdrive

Subject: [Healeys] Overdrive
From: healeydoc at sbcglobal.net (David Nock BCS)
Date: Tue, 7 Mar 2017 08:31:18 -0800
References: <CAPAC+V4Mhif3mFu0wW3QJVF0iM7rQh1m_pRkJUmt6x8n3sdJiQ@mail.gmail.com> <007701d2975a$cffdc010$6ff94030$@shaw.ca>
Remove the operating rod and check that the very small bleed hole under the 
check valve isnt plugged.


David Nock
British Car Specialists
209-948-8767
www.britishcarspecialists.com

From: John Davidson 
Sent: Tuesday, March 07, 2017 7:52 AM
To: 'Fred Wescoe' ; 'healeys' 
Subject: Re: [Healeys] Overdrive

Fred, it seems that you have tried everything and I can understand your 
frustrations. Without seeing the solenoid/lever connection, I would suggest 
that the lever may be too tight to the solenoid core and the lever then jams 
and cannot return due to the interference. The core has to move freely on the 
lever as it moves up and down. Unfortunately, the lever attachment point will 
not remain flat as it pivots at the OD. With the upper and lower ?washer? type 
widening this area can interfere with the lever if connected too tightly and 
thus jam ever so slightly.

Otherwise, there is something that is causing the solenoid core from dropping. 
Is the core bent or otherwise interfering with the internal solenoid body? Is 
your rubber boot adding additional pressure and holding the core in the body? 
When you loosen the solenoid body, does this ?realignment? allow the core to 
drop? Is the core straight? Try rolling it on a flat surface and see how it is. 
Is the core clean without oil or grease buildup?

 

My 2 cents worth Fred hope this helps.

 

John R Davidson, P. Eng.

H (204) 895-4523, C (204) 295-9207

 

From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Fred 
Wescoe
Sent: March-06-17 7:08 PM
To: healeys <healeys at autox.team.net>
Subject: [Healeys] Overdrive

 

Listers,

 

In a previous post, I related problems with my 66 BJ8 overdrive not 
working/releasing properly.  

 

The electrical issues have now been solved and the electrics are working 
correctly.

 

The remaining issue is still the release of the overdrive.  The operating lever 
is properly adjusted now with the hole in the lever lining up with the hole in 
the case.  The operating solenoid/lever engages strongly every time and the two 
holes on the right side always line up.

 

However, when the switch is turned off, the gear selector moved to neutral and 
the gas pedal pressed, the solenoid is deactivated (as indicated by a volt 
meter) but the lever does not release.  I have removed and cleaned the 
operating valve pushrod and reinstalled it.  With the plug removed I can see 
the spring jump when the overdrive is switched on.

 

At first I thought that the solenoid lever was rubbing against the trans case 
and not allowing the solenoid lever to release.  But that is not what is 
happening (I checked both sides of the trans).  When I apply the slightest 
pressure to the solenoid lever (at the solenoid), the lever drops down into the 
off position.  Time after time this is happens.  The valve operating shaft 
gives a very slight resistance to moving initially and does not want to release 
by it's self.  After the very slightest pressure on the lever, the lever moves 
easily and drops to the released position.

 

No matter what I do I cannot get the solenoid lever to drop down on it's own.  
With just the slightest touch it does drop down.  I loosened the solenoid unit 
so that it was sort of free floating but no change at all no matter what I did 
or how I moved it.  I removed and cleaned the solenoid and plunger.  Is it 
possible that something inside the trans is binding the actuating shaft/lever?

 

I am really frustrated with getting the overdrive to work properly.  Any 
thoughts would be greatly appreciated.

 

Thanks,

 

Fred

 

66 BJ8

63 BJ7 deceased



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