What was found
WHILE DRAINING OIL, FOUND A PIECE OF STEEL WITH A ROUNDED EDGE. ALSO FOUND METAL IN THE OIL FILTER. REMOVED NR 2 CYLINDER AND FOUND THE INTAKE VALVE LIFTER HAD PIECES FRACTURED OFF OF THE EDGE. THE CAM WAS SPALLED AND THE NR1 CYLINDER INTAKE VALVE LIFTER WAS ALSO SPALLED. THE SKIRT ON THE NR 2 PISTON HAD SCRATCH MARKS FROM SHIPS OF THE LIFTER. I COULD FIND NO OBVIOUS CAUSE TO THE DAMAGED. SUSPECT MANUFACTURING FLAW IN THE LIFTER BODY.