[Healeys] o/d

Bob Spidell bspidell at comcast.net
Sat Jul 10 21:32:24 MDT 2021

If the lever from the solenoid to the operating shaft--the one with the 
cam that actuates the valve--wasn't cinched down properly it could cause 
the symptoms you describe. I've never been entirely comfortable with 
this type of arrangement, where you have a pinch-type clamp on a shaft 
with no flat spots or splines to prevent slippage (I guess it works well 
enough most of the time). I've seen instances where the bolt on the 
clamp bottomed-out before the clamp was secure (note the 'test' lever on 
the right side has a pin through it).

We're spitballing here, right?

On 7/10/2021 8:10 PM, Michael Oritt wrote:
> Did you test the solenoid on the bench?  How does it act there?
> Best-Michael Oritt
> On Sat, Jul 10, 2021, 10:52 PM healeymanjim <healeymanjim at hansencc.net 
> <mailto:healeymanjim at hansencc.net>> wrote:
>     for a few months i have been struggling with an overdrive that
>     fails to engage with the solenoid (new one) but will engage if
>     i push on the right side setting  lever.  made many different
>     adjustments and none worked.  solenoid will instantly lift the
>     left side adjusting arm as long as there is no oil pressure. it
>     will not lift the adjustment arm more than a few millimeters
>     when car is moving.  we had removed the solenoid bracket and
>     replaced a gasket.  not sure what could have happened but
>     trans and o/d are now separated on my workbench and i can see
>     nothing wrong anywhere.  checked and reseated ball on
>     oil pump and found no grit or dirt.  small accumulator piston
>     moves up and down inside housing assembly.  there were no
>     problems with overdrive until gasket change.   any help appreciated.

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