Thanks for the info,
I had removed the head and only pushed on the valve with my fingers so far.
I am in no rush with this engine, I am just tinkering with it and it is a good learning aid for me.

Is it worth soaking the head first or spraying it with something before I start tapping the valve?
[Linked Image]
#Intake valve stuck open#


Happy is he who penetrates the mystery of things.