Re: 8N Starter Problems

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Posted by Dan Mayer on September 15, 2018 at 17:38:48 [URL] [DELETE] :

In Reply to: Re: 8N Starter Problems posted by Bruce (VA) on September 15, 2018 at 11:42:43:

OK, I've been working on this a while and have tried some of the things on your list.
1. New Battery, stored on tender, reads 6.3 volts, so I think I can rule that out.
2. I've cleaned every contact surface I can find, including the starter face and mating surface on block.
3. I've noticed that the hot cable to the frame is smaller than the negative cable. It could be a factor, but it has started before, and wouldn't affect a jump start straight to the starter, right?
4. Bad ground between starter and block. I assume that since I can draw a spark off the starter housing with the jumper cable, that it's well grounded to the frame. Maybe I'm wrong.
Could a worn-down commutator cause this problem? I have two starters, the armature in there now came from an older starter that had lots of copper filings in the housing and some wearing on the commutator surfaces. I only put it in because its bendix wasn't extended like the other one, and it was a lot easier to get in place. Maybe I need to work on retracting the bendix on the better armature?

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