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Old Nov 12, 2009, 12:21 PM
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United States, PA, Bellefonte
Joined Dec 2007
13,249 Posts
I think I see the issue. The "crunchy" tan looking stuff is the Mag wire clear coating that can came loose / melted loose. I almost could not see it until I enlarged the picture.

Since it "appears" limited to the one stator arm, it doesn't look to have been an over all melt down, more like there may have been a weak/bad spot on the mag wire that heated up locally to that lug. The motor is trying to run off 2 of it's 3 phases, hense the jitters.

It may still tone out, bit with a digital ohm meter you will see more resistance on one of the 3 legs if that is the case.
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