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FUNCTIONING
TROUBLE
Engine does not start with starter
running.
Exhaust gases white or light blue.
Exhaust gases occasionally tend to
be black.
Combustion noise occasionally
resembles a blow.
Abnormal noises (during combustion
or in mechanical parts).
CAUSE
q No fuel.
q Air in fuel system.
q Water in fuel system.
q Pump or fuel injection nozzle
faulty.
q Starter makes engine run slowly.
q Preheating warning light does not
come on.
q Faulty compression.
q Excessive valve clearance.
q Too much oil in oil pan.
q Unsuitable fuel.
q Air filter clogged.
q Faulty nozzle.
q Faulty compression.
q Faulty nozzle.
q Fuel with low cetane rating.
q Overheating.
q Inside of exhaust silencer
damaged.
q Excessive valve clearance.
WEAM014500
TROUBLESHOOTING
SOLUTION
q Restore level. See "Checks to be
carried out before starting the
engine".
q Repair point where air is sucked
in. See "Every 500 hours".
q Drain water from fuel system.
See "When required" and
"Checks to be carried out before
starting the eingine".
q (Change pump or nozzle).
q See "Electrical system".
q See "Electrical system".
q (Adjust valve clearance).
q Restore level. See "Checks to be
carried out before starting the
engine".
q Change with fuel in compliance
with standards.
q Clean or repair. See "When
required"
q (Change).
q (See above: faulty compression.
q (Change).
q Change with fuel in compliance
with standards.
q See above: Engine coolant
temperature indicator reaches
red overheating range.
q Change.
q (Adjust valve clearance).
3-119
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