03-08-2021, 10:45 PM
I would not reuse the square headed bolt (the thread of which looks past its best) but make up a replacement from a new hex or cap head. Fairly easy to nip up if needed, or you could drill it and wire it. This would mean that if it starts leaking oil and you decide to follow Ian's advice, at least you can get the camshaft out without having to lift the block again.