D4 7u pony starter motor brushes

Search online for the answer to your question. While you might cut a larger brush down to fit your starter, making brushes would not be easy.

I saw a post that mentioned a pony starter repair kit sold online (ebay?). Haven't seen it myself though.

Thanks ccjersey but it would be no problem. Ive machined brushes before of the graphite kind for the electrical shop at work. I seen a kit or two on ebay but my bushings and springs are in remarkably good shape.

Hi Team,
brushes are Cat Part No 9B9093 which is Delco Remy 811553.
From memory they are a sintered copper material that is a fairly common usage in starter motors.
Cheers,
Eddie B.

Here is the link to the brushes used in the starter motor:

http://www.ebay.com/itm/Starter-Brush-Set-Fits-Delco-5-8-10-MT-12Volt-D757-/231894979815?hash=item35fe0494e7:m:m315-2BdRG7loJiHuGb1b2Q

regards

Thanks for that..I will probably order the kit since it is a special copper process. Can someone explain the commutator a little. I looked online and it talks of commutators being made up of copper bars and mica etc. From what I can see mine looks like the groove is very shallow and gunked up . Can I just regroove and clean them to more depth with a hacksaw blade? Or just clean what groove remains?

How about a close up of your com after you clean it good

Starter commutators do not need the mica undercut. The brushes are hard enough to wear the copper and mica at the same rate. Commutator does need to round and even for brushes to seat properly.

OM thanks for the info. This starter stuff is new to me. Stephen will get that pic posted soon. I went ahead today and ordered the ebay rebuild kit for $19. The brushes looked pretty indentical to mine and the seller stated the kit was for starters used from 1948-53 on d2, d4 pony motors. Also stopped by the John Deere tractor store and ordered a gasket kit for my Tu4c zenith carb. They didnt have a schematic of the kit so I guess it will be a "shot in the dark".

Heres a few pics of the commutator