What was found
(CAN) PISTON PIN BUSHING FAILED DUE TO LACK OF LUBRICATION. ENG DISMANTLED AND FAILURE DETERMINED TO BE CASUED BY SEALANT BLOCKING THE PISTON COOLING JET TO NR 2 CYLINDER. THE PROBLEM SEEMED TO BE CAUSED BY THE USE OF EXCESSIVE SEALANT (POSSIBLY LOCKTITE 515) THROUGHOUT THE ENGINE AT OVERHAUL. THE SEALANT MIGRATED THROUGH THE OIL GALLERIES AND CREATED A BLOCKAGE IN THE NR 2 PISTON COOLING NOZZLE, STOPPING THE FLOW OF OIL TO THE PISTON PIN BUSHING, THUS CAUSING IT TO PICK UP ON THE PISTON PIN.