Kohler 4EOZ Service page 52

Problem
High fuel consumption
Unit is noisy
Abnormal noise
Battery will not charge
Starter does not work properly
Starter cranks slowly
40 Section 7 Troubleshooting
Possible Cause
Incorrect fuel type.
Clogged or dirty air intake screen.
Engine overloaded.
Incorrect valve clearance.
Incorrect fuel injection timing.
Low engine temperature.
Incorrect compression.
Fuel leakage.
Exhaust system leak.
Exhaust system not securely installed.
Broken or damaged vibromounts.
No installation clearance. Units hits the
craft structure or compartment.
No compartment sound insulation.
Excessive vibration.
Loose or vibrating sheet metal.
Worn or inoperative bearing or gear.
Loose bolt or screw.
Low lube oil level.
Loose or corroded connections.
Sulfated or worn battery connections.
Inoperative battery charging system.
Battery charging fuse blown.
Loosened or corroded connections.
Low battery output power.
Inoperative starter solenoid.
Inoperative start/stop switch.
Inoperative wiring.
Low battery output.
Too heavy viscosity lube oil.
Loosened or corroded wiring.
High starter current draw.
Battery cable undersized.
Corrective Action
Use correct fuel.
Service the air intake screen.
Reduce the load.
Contact your local Kohler generator set
distributor for service.
Contact your local Kohler generator set
distributor for service.
Check the thermostat.
Contact your local Kohler generator set
distributor for service.
Check for leaks at the fuel tank, lines, and
engine fuel system.
Check the exhaust system.
Check for loose parts.
Check the vibromounts.
Check the clearance.
Install approved insulation.
Contact your local Kohler generator set
distributor for service.
Tighten all bolts.
Contact your local Kohler generator set
distributor for service.
Tighten the hardware.
Add lube oil.
Clean and tighten connections.
Check the electrolyte level and specific
gravity (batteries with filler caps only).
Check the charging system.
Replace the fuse. If the fuse blows again,
contact your local Kohler generator set
distributor for service.
Clean and tighten the loose connections.
Check the electrolyte level and specific
gravity (batteries with filler caps only).
Check battery voltage.
Replace the starter solenoid.
Replace the switch.
Check the wiring.
Check the electrolyte level and specific
gravity (batteries with filler caps only).
Use proper viscosity oil.
Clean and tighten loose connections.
Rebuild or replace the starter.
See the installation manual.
TP-6137 5/03