Re: R9 Overdrive

Posted by Bill Capron On 2014/2/20 19:56:15

Update;
Thanks everyone for your replys so far.
I checked powers and grounds and found no problems. I grounded terminal 5 as suggested and the relay and solenoid both "click". I put the car on the hoist and ran it in high gear at 25 mph and grounded terminal 5, no overdrive. I removed the solenoid and observed operation when grounding terminal 5, it extends strongly. The overdrive appears to be electrically sound but does not engage.
I think the problem revolves around the fact that the car does not "coast" or "freewheel" before engagement. It appears that the overdrive unit is locked out somehow. Is it possible for the overrunning clutch to seize and lock up the unit? The lockout cable control works thru its full travel.
Any more suggestions?