18-02-2022, 04:04 PM
(This post was last modified: 18-02-2022, 08:14 PM by Steve Jones.)
Don't know why it won't turn over the cold engine, Dave, but I had a starter at one time that developed similar burn marks. Have to confess it was my fault as I'd let the brushes run down to the point that the steel brush holder was touching the commutator resulting in signficant arcing that burnt the commutator. Didn't do anything to it other than basic cleaning up and a pair of new brushes and it continued to work fine for years after (and still does as far as I know).
Steve
Steve