What was found
ENGINE LOST POWER FOR UNKNOWN REASONS. ENGINE WAS DISASSEMBLED AND INSPECTED. INVESTIGATION FOUND BROKEN DRIVE DOGS ON THE OIL PUMP GEAR, AS WELL AS GEAR TEETH ON THE CRANKSHAFT GEAR AND OUTSIDE DIAMETER OF THE CAM GEAR. THE REASON FOR THE FAILURE OF THE OIL PUMP GEAR IS UNKNOWN. I DO NOT BELIEVE THE OIL PUMP PROBLEM CAUSED THE TEETH OF THE OTHER GEARS TO BRAKE. I WOULD BE REMISS IN RECOMMENDING A COURSE OF PREVENTIVE ACTION DUE TO THE LACK OF CAUSAL FACTOR OF THIS OCCURRENCE. (K)