Ok I have the rd28 out of my gu to do head gasket and clutch at the same time. It has done 330000 km and the clutch actually looks ok but how can I tell if the flywheel is still good. I don't mind keeping it original but don't really want to spend on a new solid flywheel if the old one is still working ok. The truck hasn't seen much if any off road work and as such has had a pretty easy life.
It has about 16mm of play at the moment. Is this ok?