Is this cam usable?

[daniel dee]

GSC S3 cam journal issues see updated pics and information later on this thread.
Is this repairable?

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At what point does the cam journal become to small to use??

 

[Bmxr152]

I used a pair of cams that were a lot worse. I just put the cam in a lathe and took some 2000 grit and wd40 to mine. there still kinda scrapped up, but I have been running them for over 2 years now.

 

[daplatano91]

Any good machine shop could polish that out no issue.

 

[1SIC1Gb]

I agree. Machine shop can fix no problem. Also check your cam caps/ journal. May need to be replaced .

 

[HIGHPSI4]

I have seen worse. Polish and go.

 

[TSITurbo95]

I have seen worse. Polish it and call it a day. I have a buddy running ones much worse, with no issues. . .

 

[BogusSVO]

Yep, a light polish , mic the dia of the journal and check for close to spec, and go on. All those scratches will do is hold a bit of oil.

 

[daniel dee]

Bad News!! I brought the cams to the local speed shops all agreed the cams are toast. I then bought the cams to Shadbolt Cams (a old and reputable cam grinder)
and they measured the damaged journals at .003 deep. Overall the damaged cam journals measured were .006 less in diameter than the non damaged cam journal.

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Can anybody help!!!!!!!!

 

[bigbird94]

That last picture makes it look much worse than the in the first post. If the machine shop said it was junk and didn't offer any solutions then I'd probably get a new set..

Maybe a place like Web or Delta camshaft can manage such a repair as they custom grind cams, idk if they add material though. It would either have to be welded all the way around, or ground down and have some type of sleeve put on to get back within spec.

 

[tkelly27]

Delta cams can spray weld onto the damaged journals and then grind them down to the proper size. Might not be cheap, but it will be cheaper than new cams.