Cleaned up valves today, along with the head and also lapped valves!
Didn't have a vice so used a bit of wood!
Right, so everything is looking ready for rebuild then I checked all the piston rings.
All looked ok apart from one ring which is flush with the piston.
(highest ring on piston)
So am I looking at a set of new rings?
All other pistons look like this
Any advice is appreciated.