Exhaust Smoke Is Black Or Charcoal; Table 11-5 Exhaust Smoke Is Black Or Charcoal - Mitsubishi S4S-DT Operation & Maintenance Manual

Exhaust smoke is black or charcoal

Cause
Improper fuel property
Faulty fuel feed pump
Faulty fuel injection pump
Fuel system
Faulty fuel injection nozzle
Faulty fuel injection timing
Uneven fuel injection
Insufficient amount of air
Inlet and
exhaust
systems
Increase resistance of exhaust air.
Low compression pressure
Basic engine Faulty valve timing
Rapid wear of sliding parts
Control
Increase in load
system

Table 11-5 Exhaust smoke is black or charcoal

Use appropriate fuel.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Check exhaust smoke temperature.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Check turbocharger.
Clean, inspect and replace pre-cleaner.
Clean, inspect and replace air cleaner element.
(Refer to P8-16)
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 turbocharger.
Check exhaust pipes and silencer.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Check control system.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Chapter 11 TROUBLESHOOTING
Remedies
(Refer to P4-1)
(Refer to P8-14)
(Refer to P8-15)
(Refer to P8-14)
11-5