Neil this knock... this will sound everso daft but make sure someone hasn't cranked the rocker cover bolts right done trying to reuse an old cover gasket, as the rocker bolts can touch :schocked:
I've had this a couple of times over the years, and one occasion, gained a very nice 2a SWB, for buttons :-D :-D
Just an idea, never know...
regards Hardyferret :whistle: