Excessive Fuel Consumption; Table 11-8 Excessive Fuel Consumption - Mitsubishi S16R Series Operation & Maintenance Manual

Excessive Fuel Consumption

Problem Cause
Excessive Fuel Fuel System
Consumption
Cooling System Overcooling
Inlet and
Exhaust
Systems
Engine Body
Mitsubishi Diesel Engine S16R & S16R2 OPERATION & MAINTENANCE MANUAL
Pub. No. K29001-00320 Revision: 1

Table 11-8 Excessive Fuel Consumption

Remedies
Fuel injection noz- • Contact your SME dealer.
zle malfunction
Faulty fuel injection • Check fuel injection pump drive
timing
• Contact your SME dealer.
Improper fuel prop- • Change with appropriate fuel.
erties
Fuel leaks from low • Check defects of low pressure fuel
pressure fuel line
Fuel leaks from • Check defects of high pressure
high pressure fuel
injection pipe
• Contact your SME dealer.
• Check fan and heat exchanger.
• Check control system.
• Check thermostat.
• Contact your SME dealer.
Insufficient amount • Turbocharger - Check
of intake air
• Clean, check and replace pre-
• Clean, check and replace air
• Check intake air pressure and
• Check intake air temperature and
• Contact your SME dealer.
Increase of exhaust • Turbocharger - Check
resistance
• Check exhaust pipes, muffler and
• Contact your SME dealer.
Compression pres- • Contact your SME dealer.
sure drop
Faulty valve timing
Wear of sliding
parts
11 TROUBLESHOOTING
coupling.
line and retighten, if necessary.
fuel injection pipe
cleaner.
cleaner element.
leakage of intake air.
ventilation system.
silencer.
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