Originally Posted by heyjude076
Just a regular GM starter with attached solenoid. It acted up twice last season but now it does it all the time. When I bump the starter with my remote starter or the key and let go the starter continues to turn the engine over untill I disconnect the battery. I suspected the solenoid so I cleaned the contacts to no avail. I installed a new solenoid. Same thing. I disconnected all the wires except the hot from the battery and bumped it with the remote. Still continues to turn the engine over. I thought maybe it was binding against the flywheel somehow and not letting the bendix retreat even though I have had it out a dozen times and cleaned everything. I even left it loose on the bolts but still continued to crank the engine till I disconnected the battery. The bendix does retreat if the engine fires.
It does work fine on the bench. I am stumped and welcome any suggestions.
HeyJude. (That should be a song) If you disassemble the starter you will probably find that the twist area of the shaft is dry or worn and binding the drive once it sees pressure, or, it could be the inside of the drive where it slides on the shaft. I've seen it a number of times as has anyone who's not just a parts hanger. Clean the shaft and, if it's not too worn, lube it a bit, check inside the drive also where there are several little nubs that ride in the twists of the shaft.