Mercury Mark Starter

[capn7391]

Hi everyone. Would a member know the part number for a Mercury Mark 58 starter rebuild kit for a Delco Remy model 1113553 starter? Thanks, James in Wisconsin

[Pondrocket]

James,

Do you have a few pics of the starter. Basically I take them apart clean well on the inside. Make sure brushes are still good, then button back up. Are you having troubles with the starter the way it currently is?

Travis

Travis
AOMCI VP Communications
AOMCI Webmaster
webmaster@aomci.org

[capn7391]

It was acting weak on a fully charged battery. Next step was to tear it down, clean & inspect see if there was anything obviously wrong.

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[outbdnut2]

Usually the commutator needs cleaning/resurfacing, and sometimes the brushes are shot. This fixes 90 % of them. There is a chance the solonoid contacts have gone high resistance with age,but that’s rare. I have seen the field coils develop internal shorts, but that’s rare too. Before removing the starter fromthe engine, I always measure cranking current using a cheapie $5 current meter that you just hold next to the positive cable (somebody has to still sell these). If the current is way high, you likely have shorted windings in the field or the armature.
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But always start simple – You’ve probably already checked this stuff but if not: are the battery terminals and cable ends clean and tight? Is the battery good – does it crankwell with a jump?
Dave

[dave-bernard]

always grease the bearings.
I bought a NOS starter just like yours. did the same as yours cleaned the old dry grease out and re greased it is now new.

[capn7391]

Good to know, thanks for the great answers. The reading was normal. Think I’ll tear it down, go over it & grease the bearings. Thanks!

[capn7391]

A shot of the brushes.

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[gdcarpenter]

Those brushes ar very worn. I have had good luck finding a ‘competent’ starter/alternator shop to install new brushes in two old Merc starters. They should be silver soldered on. One of my old starters had been ‘monkey wrench’ soldered and the solder had let go. Best of luck

[capn7391]

Good to know, thank you!

[Author]

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