What was found
DURING CYLINDER CHANGE DUE TO FAILED DIFFERENTIAL CYLINDER LEAK CHECK OF LT ENGINE CYLINDER NR 2, A DEFECTIVE ROCKER ARM AND PUSHROD WAS DISCOVERED. WEAR, DAMAGE APPEARS TO BE CAUSED BY OIL STARVATION CAUSING EXCESSIVE VALVE LASH CLEARANCE, CHATTER. TIME SINCE LAST OIL CHANGE AND OIL ANALYSIS WAS APPROXIMATELY 50 HRS WITH NO ABNORMALITIES.