Quote:
Originally Posted by perelet
Cam trouble
Here's how my 4-6 cam looked like when I removed it:
My understanding is that around year 2000 somebody realized that zink in oil destroys catalytic convertors. So they mandated to oil companies to remove zink from oils.
Well after that date oils started to destroy cams on engines with rocker followers 
I think outcome - use oil additive. |
Do you still have the damaged camshaft? Do you know any tribologists? Would you be opposed to sending it to one? I know they won't give you a diagnosis from a single photo but there doesn't appear to be any scuffing to go along with the pitting?