Re: Slow going....

Posted by Ken Sadler On 2013/3/2 3:01:45

Thanks Gents,

I did sand the surfaces of the brushes as they looked a bit dull (they are copper which seems unusual to me).

I also cleaned the commutator with alcohol but it looks to be clean. I also carefully removed copper residue from between the strips. I was reluctant to start sanding the commutator but I think I'll go back and do this gently. Maybe the alcohol wouldn't have cleaned off any residue.

To be fair, once I'd cleaned the whole starter motor and tried it with beefier jump leads it did spin faster but still not what I'd expect.