I need to know what size is my rocker arm plain washer, because all motor shop or a mechanic i ask they always tell me to stop looking for a piece of part and buy a whole cylinder block, no way! maybe there are other replacement for this piece of plain washer, its not affecting the speed or something but its so gdam noisy even i tune it up right still right there so noisy.. please help! PM through my email YoussefSanguila.BacolodLDN@g.c