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Malfunction / error
Black smoke from Diesel engine.
Exhaust gases blue.
Exhaust gases white.
Diesel engine rattles.
Diesel engine knocks.
Abnormal noises.
KD62V12A 33521061401_1_1 EN_US
2023-10
Cause
Injection nozzles stuck or ineffi‐
cient.
Turbocharger failure (charge pres‐
sure too low).
Engine overloaded.
Oil level in the Diesel engine too
high.
Lubricant reaches the combustion
chamber and is burned.
Compressor-side seal on the
exhaust gas turbocharger defec‐
tive.
Crankcase ventilation defective.
Injection starts too late.
Operating temperature not
reached.
Water in fuel system.
Charge air cooler leaking.
Combustion faults.
Wrong Valve clearance.
Injection nozzles damaged or
carbonized.
Bearing damage.
Piston rings worn or broken,
pistons eroded.
Leaks in the suction and exhaust
lines cause whistling noise.
Turbine or compressor wheel
rubbing against the housing;
foreign bodies in the compressor or
turbine; seized up bearings of
rotating parts.
© 2023 by Kohler Co. All rights reserved.
Operating faults
Faults - Cause - Remedy
Remedy
Contact your nearest authorized
Kohler service representative.
Contact your nearest authorized
Kohler service representative.
Contact your nearest authorized
Kohler service representative.
Adjust oil level.
Contact your nearest authorized
Kohler service representative.
Contact your nearest authorized
Kohler service representative.
Check, if necessary replace.
Contact your nearest authorized
Kohler service representative.
Warm up the engine until operating
temperature is reached.
Check fuel system and drain pre-
filter.
Contact your nearest authorized
Kohler service representative.
Contact your nearest authorized
Kohler service representative.
Set valve clearance.
Contact your nearest authorized
Kohler service representative.
Contact your nearest authorized
Kohler service representative.
Contact your nearest authorized
Kohler service representative.
Seal leaks, replace seal if
necessary.
Contact your nearest authorized
Kohler service representative.
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