HI ALL I AM NEW TO THE SITE. I JUST BOUGHT A 2001 A4 2.4 B5 MODEL ENGINE (APS) THE OWNER SAID THAT A WATER HOSE BURST AND THE ENGINE WENT DEAD. I HAVE STRIPPED IT BUT DID NOT OPEN THE ENGINE. I TURNED THE ENGINE BY HAND ONLY. WHEN THE MAIN PULLEY TURNS ABOUT 3 QAURTERS I HEAR A CLICK SOUND LIKE A HARD PIECE OF PLASTIC SNAPPING BUT ITS VERY FAINT. COULD ANYBODY ASSIST ME IN THE RIGHT DIRECTION PLEASE.