SO I GOT THE ENGINE OUT AND WHAT I THOUGHT WAS THE CAM GOING FLAT, I FOUND OUT I HAD TWO NEW! TAPPETS THAT GAVE UP THE GOST AND SORTA CRUMBLED. SO HAS THIS HAPPENED TO ANY ONE OR WHAT COULD HAVE BROUGHT THIS PROBLEM ON, I ALSO DID NOT USE ANY ADDITIVE OR SNAKE OIL I JUST USED THE LUBERPLATE FROM NAPA AND FRESH ROTELLA 15-40 OIL AND DID THE FIRST START UP WAS 23-25 MIN AT 2000-2300 RPM AND THEN RE ADJ VALVES SO ANY IDEAS HELP ............WELL ONLY COMP D HELP NO CUMMINS FOURM HELP I WOULD LIKE TO KEEP THE COMPUTER DROOL FREE:thankyou2: