Originally Posted by
Aaron Novak
Unfortunately in the picture above, someone has "polished" the lobe and journal to "pretty it up" , so much of the information is not present. Also to answer a question, the nose of the cam in not loaded as highly as the flank, and so where we see the pitting ( not convinced its spalling ), is in the highest loaded area. The journal corrosion, and the note of corrosion on the other steel components leads one to believe there was something in the operation of the engine that led to moisture/acids in the oil attacking the parts.