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Re: [Healeys] Overdrive Solenoid

To: rjhco <rjh@hockertlaw.us>
Subject: Re: [Healeys] Overdrive Solenoid
From: Dave & M <rusd@sitestar.net>
Date: Tue, 03 Jul 2007 17:41:16 -0600
Hi Jim,

The actual effective throw of the solenoid itself is likely to be 
about 1/4". The actual installed throw should lift the operating valve 
about .040". In theory, when the solenoid is deenergized, it could 
drop to the bottom stop. In reality, because of friction on the O ring 
seals on each end of the operating cross shaft, the solenoid may only 
drop far enough to close the operating valve & not drop fully to it's 
bottom stop. This is no problem if  the OD shifts correctly. The 
important thing is for the solenoid to travel completely to the top 
(energized position) so that the operating coil contact on top of the 
solenoid is opened.

Regards,
Dave Russell

rjhco wrote:
> What is the correct length of throw for the plunger in the overdrive
> solenoid when the solenoid is energized?  This information does not appear
> in the archives that I could locate.
> 
> My solenoid plunger appears to be moving only about 1/32 of an inch when
> energized.  The plunger moves freely and will fall out of the sleeve when
> the solenoid is removed from the overdrive unit.
> 
> Thanks in advance.
> 
> Best regards,
> Jim Hockert
> Dallas, TX
> BJ8 Open Roads Rallye Car
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