okay i have just rebuilt my efi rs turbo cvh, from the moment i started it there was a heavy tappet like noise loud clicking. i bought a new cam and hyraulic tappets and fitted them today hoping that would cure it, but it has not. Loud clicking noise coming from left of rocker cover area, is it possible that the rocker arms can wear? The car drives perfectly fine but its most loud when under load, ie accelerating or going up hills. when underway and sitting at a steady pace all is quietish. Any ideas??????