Kohler KDI Series

194
14
_07ED0053029590
INFORMATION ABOUT FAILURES
14.1 Possible causes and trouble shooting
POSSIBLE ANOMALIES ACCORDING TO THEIR SYMPTOMS
POSSIBLE CAUSE
TROUBLES
Engine does not start
It starts and stops
No acceleration
Variable
speed
Black smoke
White smoke
Low oil pressure
Oil level increase
Excessive oil
consumption
Oil and fuel leak-
ing out from the
exhaust
Engine overheats
Inadequate
performance
High noise level
The Warning Lamp
switches on
FUEL
CIRCUIT
Clogged fuel line
Clogged fuel lter
Air or water in the fuel system
The fuel tank cap air bleeding hole is
clogged
Faulty fuel feeding pump
No fuel
ELECTRIC
SYSTEM
Cable connection uncertain or incorrect
Faulty starting motor
Defective heater (optional)
MAINTE-
NANCE
Clogged air lter
Excessive idle operation
Incomplete run-in
SETTINGS
REPAIRS
Rings worn or sticking
Worn cylinder
Worn out valve guides
Badly sealed intake valve
Crankshaft/Connecting rod bearings
worn out
Damaged cylinder head gasket
Defective timing system
IMMEDIATELY STOP THE ENGINE WHEN:
1 - Engine rpm increases and decreases suddenly without
being able to control them;
2 - A sudden and unusual noise is heard;
3 - The colour of the exhaust fumes suddenly darkens or turns
white;
4 - The oil pressure warning light or a Warning Lamp turns on
during operation;
5 - The coolant temperature warning light turns on during
operation.
Ta b . 14 .1 c o n t a i ns t he p o s s ib l e c au s e s o f s o m e fa i lu r e s , w h i c h
may occur during operation.
Always perform these simple checks before removing or
replacing any part.
Warning
• Search for a topic and the operations to carry out from the
analytical index or chapter index found at the beginning of
the manual.
• Do not carry out any checks or operations on the engine
when it is running.
Tab. 14.1