Scratches on cam

200sxman · Mar 6th, 2005, 03:14 PM

Hi, I have a used highport intake cam for the SR20 to put on my lowport, but my question is more for cams in general. How much damage(scratches, etc) can a cam have and still be good? The cam I have has a few scratches on it--mostly real light on the faces of the lobes, but a couple of small moderate ones, and is slightly shipped on the edges of some of the lobes. What would be anyone-who-has-experience-with-cam's opinions about using it? Thanks in advance

lshadoff · Mar 6th, 2005, 04:03 PM

If you can feel scratches in the lobe of a cam by running your fingernail across the lobe, it will wear the rocker arm and change the clearances.

Lew

Ninety-Nine SE-L · Mar 15th, 2005, 10:48 PM

is it possible to repolish the lobes w/o affecting the lift or duration that much?

lshadoff · Mar 15th, 2005, 11:13 PM

Quote:

Originally Posted by Ninety-Nine SE-L

is it possible to repolish the lobes w/o affecting the lift or duration that much?

The cam lobes are hardened (Parkerized). Polishing the lobes will destroy the hardened surface, and the cam will wear faster than normal.

Lew

guam_boy00 · Apr 11th, 2005, 11:36 PM

It's junk if it doesn't pass the finger nail test