Mitsubishi S16R2-PTAW - Fuel Consumption Is High; Table 11-6 Fuel Consumption Is High

11-7
Chapter 11 TROUBLESHOOTING
Fuel 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 11-6 Fuel Consumption is High
Causes 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 properties Use appropriate fuel. (Refer to P4-1).
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 radiator.
Check control system.
Inspect thermostat.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Inlet and
exhaust
systems
Insufficient amount of air
Check turbocharger. (Refer to P8-21).
Clean, Inspect and Replace Air Cleaner Element.
(Refer to P8-22).
Check intake air pressure and leakage of intake air.
Check intake air temperature and ventilation device.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Check coolant temperature (Air Cooler)
Check Air Cooler water pump operation (Belt looseness)
Increase resistance of exhaust air
Check turbocharger. (Refer to P8-21).
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.