M starter drive....again

Animal · Jan 2, 2012

Let me go into detail a little deeper, I am fixing this tractor up for another guy, It had not ran in twenty years, I had it started yesterday and it ran decent, it has been changed over to 12 volts with the 6 volt starter left on it, today when I tried it I know I broke the spring. Is their a heavy duty drive made for these or will the M diesel drive work?

Hayfarmer · Jan 2, 2012

I have run my SMTA with 12 volt and 6 volt starter for years with no problem. Draper Tractor (www.drapertractor.com) lists the drive and also just spring if that is what you need.

mkirsch · Jan 2, 2012

The old spring that broke was how old? Thirty, forty, FIFTY years old?

How many thousands of starts has it gone through?

You don't need a "heavy duty" spring. The OEM one is just fine, it just needed to be replaced.

Janicholson · Jan 2, 2012

THere is also a new series drive with a different system. it has a cushon in the pinion that makes it work. It also has a non driving spring. Jim

Jon Hagen · Jan 2, 2012

I have run into that a few times with Moline or IH converted to 12V on a 6V starter with very heavy GA battery cables.
A cheap easy fix has been to replace 1 or both battery cables with the skinny walmart type 12V cables. That will kill starter power just enough to prevent breaking that cushion spring, yet still crank 4 times as fast as the 6V setup.

M starter drive....again

Animal

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Hayfarmer

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mkirsch

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Janicholson

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Jon Hagen

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