Hi Cars, they seem fine when i was lapping the valves in they were free, and not sticking i oiled the stems before i put the valve springs/collets on, if it was a hairline crack, i would have thought i would have got a low pressure reading but there was zero. it exactly the same as before i put the new head gasket on, its got to be something to do with the valves but can't see anything wrong as yet. THE MIND BOGGLES.
Pete