Exhaust Smoke Is Black Or Charcoal; Table 11-5 Exhaust Smoke Is Black Or Charcoal - Mitsubishi S16R2-PTAW Operation & Maintenance Manual

Chapter 11 TROUBLESHOOTING

Exhaust Smoke is Black or Charcoal

Causes
Improper fuel properties
Faulty fuel feed pump operation
Faulty fuel injection pump
Faulty fuel injection nozzle
Fuel system
Faulty fuel injection timing
Uneven fuel injection
Insufficient amount of air
Inlet and
exhaust
systems
Increase resistance of exhaust air
Control
Increase in load
system
Low compression pressure
Basic engine Faulty valve timing
Rapid wear of sliding parts
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.
11-6

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.
Check fuel injection pump couplings.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Check exhaust smoke temperature, left and right bank bal-
ance.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Check turbocharger.
Clean, Inspect and Replace Air Cleaner Element.
(Refer to
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
Check exhaust pipes and silencer.
Consult a dealer of Mitsubishi Heavy Industries, Ltd.
Check control system and governor controller.
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.
Remedies
(Refer to P4-1).
(Refer to P8-21).
P8-22).
turbocharger.(Refer to P8-21).