hold on... those little shavings, you need to check to see if they are ferrous or not, pick them up with a magnet, if they do, then you may have a bearing going south, but you probably caught it in time before it has done any damage and may be relativly inexpensive to fix as opposed to AFTER it has gone south. OR it is aluminum and the cam chain is shaving the rocker cover, and that is an easy fix as well.