11-7
Chapter 11 TROUBLESHOOTING
Fuel Consumption is High
Note: The table above also include the parts Mitsubishi Heavy Industries, Ltd. does not supply. For the parts Mitsub-
ishi Heavy Industries, Ltd. does not supply, inspect and maintain them following the manufacturer's operation
manual.
Table 11-6 Fuel Consumption is High
Cause
Remedies
Fuel system
Faulty fuel injection nozzle
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Faulty fuel injection timing
Check fuel injection pump couplings.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Improper fuel property
Use appropriate fuel.
Fuel leakage in fuel pipes and
injection pipes.
Check faults and retighten fuel pipes and injection pipes.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Cooling
system
Overcooled
Check fan and heat exchanger.
Check control system.
Thermostat - Inspect
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Inlet and
exhaust
systems
Insufficient amount of air
Check turbocharger.
Clean, inspect and replace air cleaner element.
Check intake air pressure and leakage of intake air.
Check intake air temperature and ventilation device.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Increase resistance of exhaust air.
Check turbocharger.
Check exhaust pipes and silencer.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Basic engine
Low compression pressure
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Faulty valve timing
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Rapid wear of sliding parts
Consult a dealer of Mitsubishi Heavy Industries, Ltd.