David, I had a similar problem and it turned out to be an intermittent
ground in the wiring system and not the solenoid itself. The vibration of
the driveline made it act as you are describing.
Once apart giggle the wires some and see if that causes the same issue. Of
course if you are stationary and the solenoid is alternating it's not likely
a grounding issue.
Just another place to check before springing for a new solenoid.
JVV
> Folks,
>
> I'm moving and need to get the TR overdrive
> working pronto. When the overdrive lever
> is thrown, the overdrive seems to alternate between
> engaged and disengaged at a fairly high clip, I'd
> say 10 Hz. I't happens in 2nd, 3rd, or 4th so it's
> probably not the tranny switches. The only item left
> is the solenoid. My manual is already packed. What
> setup is required on the solenoid?
>
> TIA,
> David Brady
> '68 TR250 CD8124L
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