Rebuilt my mean green starter, main bearing was rusted pretty bad, my main cause of slow spinning when hot. So I bolted it back up with the 2 shims that was in there before. Now after the engine starts and the bendix kicks out, it grinds that hi pitch metallic noise just at the very last 1/10th of a second when the bendix is going back into the starter. I tried the 2 shims, 1 shim and no shims, all seem the same. So I am running no shims right now. Bendix gear and flywheel look excellent. Any ideas? Thanks!