Henners...dont be naughty and go directly to the H*nda forum !!! Kev, I didnt realise the head is only sealed using the 'O' rings - I honestly thought there was a gasket of some sort on top of the barrel. Looking at the parts pdf it shows TWO DIFFERENT part numbers for the O rings used - could you have used wrong ones or got them mixed. Otherwise - I'm stumped and can only think of awful things like distorted head or barrel OR perhaps your oil pressure is running too high for some reason... CALL FOR SUPER-NELLY !!!!!!!!!!!!! Sorry - Frank |