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GU Starter motor eats brushes like popcorn

Tech Talk for Nissan owners.

Moderators: toaddog, V8Patrol

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Guy
Posts: 10366
Joined: Thu Dec 12, 2002 8:43 am
Location: Wangaratta

GU Starter motor eats brushes like popcorn

Post by Guy »

TB45e has eaten is second set of brushes in a few months .. only gets started 3 or 4 times a day, battery has no real issues.

Any ideas ??
" If governments are involved in the covering up the knowledge of aliens, Then they are doing a much better job of it than they do of everything else "
Posts: 502
Joined: Thu Dec 01, 2005 12:09 pm
Location: Cairns

Post by fnqcairns »

Check the revolving surface the brushes contact if it is scored it will eat brushes like no-ones business.

cheers
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Post by Area54 »

While looking at the commutator, check if the com bars are uneven in colour, ie 1 bright copper then the next dark and burnt - this will indicate a short in the windings. The short will cause the brushes to burn more on rotation. Easier to see on a ventilated motor, as you can see the comms and brushes creating a complete halo around the comm when the motor is running, impossible on a starter motor though - totally enclosed frame.
Built, not bought.
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