1 page 1 ENGINE 3-1-9 Models J08C-TP and J08C-TR Symptom Possible cause Remedy/Prevention Difficulty starting engine G Seized nozzle................................................ Replace nozzle G Broken or fatigued nozzle spring .................. Replace spring Oil system G Oil viscosity too high ..................................... Use proper viscosity oil, or install an oil immersion heater and warm up oil Other problems G Seized piston ................................................ Replace piston, piston rings, and liner G Seized bearing .............................................. Replace bearing and crankshaft G Reduced compression pressure ...................
Overhaul engine G Ring gear damaged or worn ......................... Replace the ring gear and/or accelerator cable starter pinion G Improperly adjusted or broken ...................... Adjust or replace the accelerator cable Rough idling Injection pump ............................................ Refer to “FUEL INJECTION PUMP” G Uneven injection pressure ............................ Adjust Nozzles G Poor nozzle spray ......................................... Adjust or replace nozzle G Carbon deposit on nozzle tip ........................ Remove carbon G Seized needle valve......................................
Replace nozzle Engine proper G Improper valve clearance ............................. Adjust valve clearance G Improper contact of valve seat ...................... Replace or repair valve and valve seat G Idling speed too low ...................................... Adjust idling speed G Coolant temperature too low ......................... Warm up engine G Compression pressure of cylinders............... Overhaul engine markedly different from one another Nozzles