Bringing this up again:
I had a nice experience a few weeks ago when I discovered my 12V starter just spinning in place. I pulled it to find out that the starter's bell housing had cracked completely off. I forked over the cash for another one and listened to cranking followed by a loud BANG. I looked and found the teeth of the starter and flywheel jammed together.
I'm pretty ticked about this because I made sure the diameter and number of teeth of the new starter matched the old, but this doesn't mean anything if the PO didn't have the right starter on the truck in the first place.
I have a new theory that the teeth on either may be too worn down to engage at the right pitch. I checked the flywheel and it doesn't look to bad, but the "new" starter from Jim Carter looks pretty worn compared to the other 2 starters I've now seen. I'll double check exactly what flywheel I have down there, but need this answered:
How many teeth on starters and flywheels between the original 47-54 6V's and the later 12V's?
My starter has 9 teeth with a diameter of 1.00" (pitch of 0.349"). What flywheel am I looking for?
(by the way I have all Chevy under the hood, not GMC)
