Are you sure the crank didnt turn after you fitted the new belt as its all held together by the crankshaft bolt.... with the new belt on and tensioned you can still turn the crank even with the locating pin in and the plate holding the cams as its the crank outer pulley that locks up against the inner crank gear ( the one that drives the cambelt ) and holds them all in place.... if you know what i mean !!! Its all because there is no keyway on the crank and the inner crank pulley runs freely !


Does sound like bent valves though if its turning over quickly and not firing