Your six volt starter has a band on the bottom which can be removed to inspect the brushes and commutator. The brushes may be worn or hung up. Another issue with these starters is the thrust washer on the bottom of the armature wears out, allowing the commutator to fall a bit and short out on the end plate. I’ve fixed this problem before by making thin washers out of Delrin.The field windings are quite robust but if the insulation has fallen off, they can be rewrapped with cotton and then varnished. I use seam binding meant for sewing to do this.
Try holding the starter upside down and put the power to it. If it spins and tries to jump out of your hand, you can assume the lower thrust washer is worn out and it has an internal short.
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This reply was modified 5 years, 3 months ago by
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This reply was modified 5 years, 3 months ago by .
