TROUBLESHOOTING 8.2 8.2G Diesel Engine 8-12 8 Symptom Cause Remedy Excessive lubricant oil consumption Piston rings gap facing the same direction Shift gap direction Oil ring worn or stuck Replace Piston ring groove worn Valve stem and guide worn Replace Replace Crankshaft bearing and crank pin bearing worn Replace Fuel mixed into lubricant oil Injection pump plunger worn Replace pump element or pump Injection pump broken Replace Water mixed into lubricant oil Head gasket defective Replace Cylinder block or cylinder head flawed Replace Low oil pressure Engine oil insufficient Replenish Oil strainer clogged Clean Relief valve stuck with dirt Clean Relief valve spring weakened or broken Replace Excessive oil clearance of crankshaft bearing Replace Excessive oil clearance of crank pin bearing Replace Excessive oil clearance of rocker arm bearing Replace Oil passage clogged Clean Oil pump defective Replace Different type of oil Use the specified oil type High oil pressure Relief valve defective Replace Engine oil insufficient Replenish Engine overheated Fan belt broken or elongated Change or adjust Cooling water insufficient Replenish Radiator net and radiator fin clogged with dust Clean Inside of radiator corroded Clean or replace Cooling water flow route corroded Clean or replace Radiator cap defective Replace Overload running Loosen the load Head gasket defective Replace Incorrect injection timing Adjust Deficient output Unsuitable fuel used Use the specified fuel Incorrect injection timing Adjust Engine’s moving parts seem to be seizing Repair or replace Uneven fuel injection Repair or replace injection pump Deficient nozzle injection Repair or replace nozzle Compression leak Replace head gasket, tighten cylinder head bolt, glow plug and nozzle holder Battery quickly discharges Battery electrolyte insufficient Replenish distilled water Fan belt slips Adjust belt tension or change Wiring disconnected Connect Rectifier defective Replace Alternator defective Replace Battery defective Change