Pully repair?

clampdaddy · Mar 24, 2013

I just took apart the clutch on a "G" that I recently picked up and the inside of the pulley is rust pitted pretty bad. Does anyone know how far the inner machined surface can be turned down before you run into problems?[/i]

4020deereboy · Mar 27, 2013

I can"t help ya do you have the manual for it? Just hate when
people won"t answer not that my answer is any good to ya

clampdaddy · Mar 27, 2013

Thanks, I can't seem to find anyone that knows the answer (and one of my buddys worked for Deere). I have an original owners manual and an IT service manual but neither says anything about resurfacing the machined surface inside the pulley. I may try resurfacing it and if need be, I'll bond two clutch rings together to make up any extra space.

Rwolfejr · Mar 27, 2013

Couple thoughts on this...
The surface having some rust pits isn't going to hurt you much at all. Chances are it isn't all that bad because that surface will be harder than the hinges of hell. Hardened material is less susceptible to rusting bad. It'll rust... but takes much, much longer and even longer to get in deep.

Second thought is given the hardness... a grind would be more appropriate. Grinding is easier to produce the kind of finish you're gonna want. If you don't have a nice stout boring bar and a good tool on the end of it you're liable to create more damage than good. (chatter...)

Then there's the issue of removing too much stock. Not so much because of depth or adjustment issues but more due to the likelihood that that surface was / is probably just surface hardened. Surface hardening will only be so deep. If you remove too much you might get down to the softer tootsie roll center.

Myself... I'd scuff the surface with some fine paper or a scotchbrite and call it a day. Or... look for one in better shape if you're very uncomfortable about the pitting.

clampdaddy · Mar 27, 2013

(quoted from post at 19:16:51 03/27/13) Couple thoughts on this...
The surface having some rust pits isn't going to hurt you much at all. Chances are it isn't all that bad because that surface will be harder than the hinges of hell. Hardened material is less susceptible to rusting bad. It'll rust... but takes much, much longer and even longer to get in deep.

Second thought is given the hardness... a grind would be more appropriate. Grinding is easier to produce the kind of finish you're gonna want. If you don't have a nice stout boring bar and a good tool on the end of it you're liable to create more damage than good. (chatter...)

Then there's the issue of removing too much stock. Not so much because of depth or adjustment issues but more due to the likelihood that that surface was / is probably just surface hardened. Surface hardening will only be so deep. If you remove too much you might get down to the softer tootsie roll center.

Myself... I'd scuff the surface with some fine paper or a scotchbrite and call it a day. Or... look for one in better shape if you're very uncomfortable about the pitting.

Some good points. I didn't think that the surface might be hardened. I figured it would just be machined cast iron like a brake drum. I'll clean it up and run it. If it chews up clutch rings really fast then I'll mess with it.

Pully repair?

clampdaddy

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4020deereboy

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Rwolfejr

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