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Old 09-17-2019, 07:26 PM   #4
bobbader
Senior Member
 
Join Date: May 2010
Location: Huntington, NY
Posts: 271
Default Re: Starter armature, is it good?

Starter armature segment insulators do not get undercut as those in generators. The commutator surface SHOULD be smooth. NO GROOVES. Starter brushes are copper/bronze as opposed to carbon brushes in generators. Grooves between the segments would cause the brushes to wear more quickly and throw off deposits that can short the segments.
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