1 page 1 ENGINE 3-1-3 Models J08C-TP and J08C-TR Symptom Possible cause Remedy/Prevention Engine overheating Other problems G Defective or deteriorated engine oil .............. Change engine oil G Unsatisfactory operation of oil pump ............ Replace or repair G Insufficient oil ................................................ Add oil G Brake drag .................................................... Adjust Severe operating conditions G Lugging the engine ....................................... Operate engine properly Excessive oil consumption Pistons, cylinder liners and piston rings G Wear of piston rings and cylinder liner ..........
Replace piston rings and cylinder liner G Worn, sticking or broken piston rings ............ Replace piston rings and cylinder liner G Insufficient tension on piston rings ................ Replace piston rings and cylinder liner G Unsatisfactory break-in of piston rings .......... Replace piston rings and G Unsuitable oil (viscosity too low) ................... Change oil as required and cylinder liner replace piston rings and cylinder liner G Incorrectly fitted piston rings (upside down) .. Replace piston rings G Gaps of piston rings in line with each other .. Reassemble piston rings Valves and valve guides G Worn valve stem ...........................................
Replace valve and valve guide G Worn valve guide .......................................... Replace valve guide G Incorrectly fitted valve stem seal................... Replace the stem seal G Excessive lubricant on rocker arm ................ Check clearance of rocker arm and shaft Excess oil feed G Defective oil level gauge ............................... Replace oil level gauge G Oil level too high ........................................... Drain excess oil