Engine damage due to overheating?

[67fire]

I would at least want to look at or replace the cam chain guide. With the low oil pressure and high heat, I would suspect it to be badly worn. After it cuts through the plastic/teflon(?) does it not hit metal? It would still have all of that plastic parts in the engine. As others have said, I would stick to the automatic cam chain adjuster. If not rebuilt, a new one.

Eric