Polishing a cam

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Jan 26, 2006 | 06:39 PM

joshluther

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Polishing a cam

I have a cam with some rust on it. I know that pitting means it's a no go. So I want to polish it to see how extensive it is. What is the proper way to do it?
2000 grit, metal polish, both?

Jan 26, 2006 | 09:14 PM

SStrokerAce

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You don't want to induce scratches into the cam lobe, odd **** can happen with valvetrain dynamics then.

Try WD40 and some towels first, let it soak for a while. If worse comes to worse a very fine Scotchbrite pad and WD40.

Bret

Jan 26, 2006 | 09:48 PM

blueovalbeater

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Im not a cam tech, but i know that a cam is very sensitive and once theres damage you may never be able to get it revitalized. message terminated.

Jan 26, 2006 | 10:36 PM

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I had some rust on mine. I used 000 ( whatever the finest grade is tired and cant recal with certainty ) steel wool and WD 40. Came up smooth as butter

Jan 27, 2006 | 12:24 AM

NLang

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If WD-40 and a scotchbright pad can't get it off, I'd consider moving onto another cam, or sending it off to be re-ground. Any more aggressive of a material and you risk further damage to the lobe surface, and ultimately the posibility of what SStrokerAce was hinting.