Ingersoll-Rand 4IRI8T - Page 63

63
Starting failure
Insufficient
engine output
Poor
exhaust
color
Hunting Lubricating oil
Cooling
water
Air
intake
Engine starts
but stops
soon.
Exhaust
color
During
work
Exhaust
smoke
Trouble symptom
Cause
Engine does not start. None Little Much Ordinary White Black White Black High knocking sound during combustion Abnormal engine sound Uneven combustion sound During idling During work Large engine vibration Difficulty in returning to low speed Excessive fuel consumption Excessive consumption Dilution by fuel oil Mixture with water Low L.O. pressure Much blow-by gas Overheat Low water temperature Pressure drop Pressure rise Exhaust temperature rise
Corrective action
Clogged air filter Clean. (See 2.2.4 in Chapter2.)
Engine used at high temperatures or at high altitude Study output drop and load matching.
Clogged exhaust pipe Clean.
Air/Exhaust Gas System
Starting motor defect Repair or replace. (See Chapter8.)
Alternator defect Repair or replace. (See Chapter9.)
Open-circuit in wiring Repair. (See Chapter10.)
Battery voltage drop Inspect and change the battery. (See 2.2.3 in Chapter2.)
Electrical System