11-8
Chapter 11 TROUBLESHOOTING
Engine Oil Consumption is High
Note: The table above also includes the parts not supplied by Mitsubishi Heavy Industries, Ltd. For the parts not sup-
plied by Mitsubishi Heavy Industries, Ltd., inspect and maintain them by following the manufacturer's operation
manual.
Table 11-7 Engine Oil Consumption is High
Causes Remedies
Fuel system Faulty fuel injection timing
Check fuel injection pump couplings.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Lubricating
system
Oil leakage to the outside of
engine
Check oil leakage.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Engine oil viscosity too low Use appropriate oil viscosity. (Refer to P5-3).
Engine oil temperature is high
Check amount of engine oil and lubrication system.
(Refer to P3-12).
Check oil cooler and oil thermostat
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Cooling
system
Overheating
Check radiator.
Check control system.
Inspect thermostat.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Inlet and
exhaust
systems
Spread oil to intake part
Check oil leakage to the turbocharger.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Wear of valve operating system Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Control
system
Increase in load
Check control system and governor controller.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Basic engine Wear of sliding parts Consult a dealer of Mitsubishi Heavy Industries, Ltd.