[Healeys] overdrive problem

[Bob Spidell]

My gut feeling is the new O-ring(s) are binding enough to prevent the 
solenoid from pulling up the lever (though the solenoid is likely pretty 
strong). Did you adjust the solenoid throw 'by the book?' That is known 
to be a less reliable way to adjust than setting the height of the 
operating valve.

re: "... o-ring on pax side was flat and replacement was round ..."

Are we talking cross-sections?

Bob

On 5/11/2021 2:02 AM, john harper via Healeys wrote:
> Maybe there is too much clearance between the bottom of the solenoid 
> plunger and the 'backstop'. There are two versions of this backstop. A 
> small rubber bung and an adjustable back screw. If it were rubber, it 
> will perish and fall away or the adjustment not correct.
>
> Don't leave the plunger out too long. As you say _/'if I push a little 
> on right side arm it/_
> /_engages_//_immediately_'/ means that the high current is still 
> flowing and if left any length of time will burn out the solenoid.
>
>
> On Tue, 11 May 2021 at 04:09, healeymanjim <healeymanjim at hansencc.net 
> <mailto:healeymanjim at hansencc.net>> wrote:
>
>     changed a leaking gasket on side of BT7 o/d.  also replaced
>     synthetic oil with 30ND.  now cannot get o/d to engage.
>     solenoid worked fine on static check but would not engage o/d
>     while driving.  ordered new solenoid and same situation.
>     started out with book instructions, no luck.  tried other
>     positions and will not engage.  if i push a little on right side
>     arm it
>     engages immedietely.  again, it was working fine before we changed
>     the gasket on the side plate and replaced o rings on
>     both sides of shaft.  one thing i did notice was that o-ring on
>     pax side was flat and replacement was round.  the solenoid
>     does not seem to be able to lift the arm while moving, but will
>     when checking it while stopped. any ideas?
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