Hi guys right my mate Ingram from here has had a look for me this afternoon. Took the rocker cover off and the belt still seems tight round the cam pulleys. Had a look at the bottom behind the driverside wheel but couldnt see much as it was pouring with rain and getting dark. Could the oil pump have failed causing one of the cylinders to lock up? Could the banging noise I heard be the cylinder smashing about with no oil? Hopefully going to use the megane BE with my valver head if possible. Do you think the valver head will be ok? Thanks guys, Rob.