[Mikeyx]

The crankcase was full of coolant up to the cylinder gasket level. Drained it.

Any pointers how to remove the bolt/nut combo from the PV lever? It does not fit through the opening, and hence I cannot remove the cylinder.

Behind the lever, there is a thin round washer stuck on the bolt. Cannot undo it as it rotates with the bolt. Cannot pry it off, either. And the combo is not shown in any parts diagram images...

EDIT: Behind the lever, there is a flange and not a washer. Even with heating up the locking nut, it would not come off as there was no chance to counterhold the threaded part from rotating.