Kohler 7CCO Operation And Installation Manual page 45

Problem
Engine knocks Faulty injector
Improper type of fuel
Incorrect fuel injection timing
Improper cylinder top clearance
Defective piston or piston ring
Defective crankshaft bearing or
piston pin bearing
Improper valve clearance
Air in injectors
Engine runs Vent in fuel tank cap obstructed
irregularly or
stalls frequently Clogged fuel filter
Water, dirt, or air in fuel system
Dirty or faulty injectors
Faulty governor linkage
Defective fuel feed pump
Improper valve clearance
Improper compression
Stops suddenly Out of fuel
Air intake restriction
Fuse blown in controller
High water temperature (HWT)
shutdown*
Low oil pressure (LOP) shutdown*
Defective fuel pump
Clogged fuel filter
Lack of engine Engine overloaded
power
Air intake restriction
* See Section 2 Fault Shutdowns
4-2 Troubleshooting
Engine (Continued)
Possible Cause Corrective Action
See authorized service dealer/distributor
Use proper type of fuel; consult fuel
supplier
See authorized service dealer/distributor
See authorized service dealer/distributor
See authorized service dealer/distributor
See authorized service dealer/distributor
See authorized service dealer/distributor
Bleed air in fuel system
Clean cap in solvent, blow dry
Replace fuel filter element
Drain, flush, fill, and bleed air in
fuel system
See authorized service dealer/distributor
See authorized service dealer/distributor
Replace fuel feed pump
See authorized service dealer/distributor
See authorized service dealer/distributor
Replenish fuel supply
Service air cleaner
Replace fuse. If fuse blows again,
See authorized service dealer/distributor
Check engine coolant level, loose fan
belt, radiator obstructions, etc.
Check engine lube oil level
See authorized service dealer/distributor
Replace filter
Reduce load
Service air cleaner
TP-5594 5/95