I’m in the process of changing my oil pan, and I faintly noticed tiny metal shavings in the pan that did not appear in the oil change. You can also see sludge and a little bit of coolant residue that was from a bad oil cooler gasket which I replaced already. My issue is not knowing what to do. I suspect this could be from the camshaft bearing because when I was doing a head gasket replacement the side of the camshaft bearing had some grooves like it came in contact with the side of the camshaft lobe. Maybe there was play? I don’t know how to adjust that but my main issue now is the shaving in the pan. I’m planning to reseal the upper pan as well so i will have access to your he rod bearings if necessary.