Kohler 7CCO Operation And Installation Manual page 46

Problem
Lack of engine Clogged fuel filter
power
(Continued) Improper type of fuel
Improper valve clearance
Dirty or faulty injectors
Incorrect fuel injection timing
Improper engine compression
Vent in fuel tank cover obstructed
Overfueling (rich)
Engine Engine overloaded
overheats
Defective cooling system
Loose or defective water pump
V-belt
Cooling system needs flushing
Defective thermostat
Defective high water temperature
switch
Cooling water leaks from water
passages
Radiator clogged with dirt or oil
Radiator cap defective
Cylinder head gasket defective
Engine emits Fuel filter clogged
black or gray
exhaust smoke Overload
Improper type of fuel
Clogged or dirty air cleaner
Defective injection pump
Faulty injectors
Incorrect fuel injection timing
TP-5594 5/95
Engine (Continued)
Possible Cause Corrective Action
Replace filter element
Use proper fuel
See authorized service dealer/distributor
See authorized service dealer/distributor
See authorized service dealer/distributor
See authorized service dealer/distributor
Clean cap in solvent; blow dry
See authorized service dealer/distributor
Reduce load
Check water pump
Adjust belt tension or replace belt
Flush cooling system
Replace thermostat
Replace switch
Check water passages
Clean with water soluble grease
remover and flush cooling system
Replace
See authorized service dealer/distributor
Clean or change
Lessen the load
Use proper fuel
Service air cleaner element
See authorized service dealer/distributor
See authorized service dealer/distributor
See authorized service dealer/distributor
Troubleshooting 4-3