Mitsubishi S6B Service Manual

11-3
Chapter 11 TROUBLESHOOTING
Output decrease
Table 11-3 Output decrease
Cause Remedies
Fuel system
Improper fuel property Use appropriate fuel. (Refer to P4-1)
Clogged fuel filter
Inspect and replace fuel filter. (Refer to P8-8)
Gauze filter - Clean (Refer to P8-7)
Faulty fuel feed pump Consult a Mitsubishi dealer.
Faulty fuel injection pump Consult a Mitsubishi dealer.
Faulty fuel injection nozzle Consult a Mitsubishi dealer.
Faulty fuel injection timing
Check fuel injection pump couplings.
Consult a Mitsubishi dealer.
Improper amount of fuel injection
Check fuel injection pump rack stroke.
Consult a Mitsubishi dealer.
Cooling sys-
tem
Overheat, overcooled
Check fan and heat exchanger.
Check control system.
Consult a Mitsubishi dealer.
Inlet and
exhaust sys-
tems
Insufficient amount of air
Check turbocharger. (Refer to P8-15)
Clean, inspect and replace pre-cleaner. (Refer to P8-16)
Clean, inspect and replace air cleaner element. (Refer to P8-
17)
Check intake air pressure and leakage of intake air.
Check intake air temperature and ventilation device.
Consult a Mitsubishi dealer.
Increase resistance of exhaust air
Check turbocharger. (Refer to P8-15)
Check exhaust pipes and silencer.
Consult a Mitsubishi dealer.
Engine
mechanical
Low compression pressure Consult a Mitsubishi dealer.
Faulty valve timing Consult a Mitsubishi dealer.
Rapid wear of sliding parts Consult a Mitsubishi dealer.
Control sys-
tem
Faulty governor control
Consult a Mitsubishi dealer.

Mitsubishi S6B Specifications

General

Brand	Mitsubishi
Model	S6B
Category	Engine
Language	English