What was found
ENGINE WAS DISASSEMBLED AND INSPECTED DUE TO CRANKSHAFT FAILURE. FOUND NR3 CHEEK BROKEN. THIS FAILURE CAUSED EXCESSIVE DAMAGE TO THE CRANKCASE, CAMSHAFT, NR1 AND NR 2 CONNECTING ROD, AND THE ASSOCIATED TAPPET BODIES. CAUSE OF THE FAILURE COULD POSSIBLY BE A METALLURGIC DEFECT OR A FORM OF FATIGUE. WITHOUT ACCESS TO A LABORATORY FOR EXTENSIVE TESTING WE CAN NOT ACCURATELY CONCLUDE WHAT CAUSED THIS FAILURE OR HOW LONG THIS DEFECT HAD BEEN PRESENT AT THE TIME OF FAILURE. DUE TO THE LACK OF CONCLUSIVE CAUSE WE WOULD BE REMISS IN SPECULATING THE REMEDY FOR THIS EVENT. (K)