John: I had kind of a wierd telephone last night from a good dealer friend of mine  and he was trying to pick my brain on a 310 in an 1800 C diesel. It broke the camshaft. We sold more of them than they did and wanted to know if I ever remembered any breaking. I did not and this one broke betwwen the front and the second bearing. He said and he sad not seen it but the customer said the rod was fine. It does not amke sense to me why it would take a chunk out of the cam  lik that if the rod was fine.  I can not picture anything going through the oil pump screen and locking up the cam either. You have any thoughts?