CAT INV2000 - TROUBLESHOOTING GUIDE (Cont.); Engine Performance Issues; Engine Shuts Down Issues

35
Issue:
Possible Cause:
Solution:
Check:
Engine
Starts But
Runs Rough
or Does Not
Have
Enough
Power
Dirty air filter
Check the air filter. Clean or replace as needed
Start the
engine.
Check if it
has power or
runs rough
Generator inclined
Move generator to a level position.
Air in fuel line or fuel
line clogged
Check the fuel line. Clear or replace as needed.
Not enough fuel to
the engine
Make sure the needle valve is closing properly. Clean
or replace as needed.
Inspect the fuel nozzle. Clean if needed.
Inspect the float. If the float is damaged or sticking,
repair or replace as needed.
Engine Smart Control
switch on
Turn the Engine Smart Control switch off.
Carbon built up in
combustion chamber
Remove the cylinder head and clean if needed.
Cylinder pressure
Check the valve clearance. Refer to the Maintenance
Specifications chart for the proper value. Adjust or
repair as needed.
Inspect the cylinder head gasket. Replace if damaged.
If the engine still has
low power:
Rebuild the engine, replace the engine, or consider replacing the unit.
Engine
Shuts Down
Out of fuel
Check the fuel level. Fill the tank if necessary.
Start the
engine.
Check if it
shuts down
Not enough oil in the
engine
Check the oil level. If low, add the recommended oil.
Dirty air filter
Clean the air filter.
Generator overloaded
Unplug some of the devices.
Vacuum relief valve in
off “O” position
Turn vacuum relief valve to on “I” position.
If the engine still
shuts down:
Rebuild the engine, replace the engine, or consider replacing the unit.
Engine
Making
Unusual
Sound
Knocking
Check the engine temperature. If the engine is running
too hot, refer to the section on overheating.
Start the
engine.
Check for
unusual
sound
Make sure the fuel is good and the proper rating. Drain
and refill the fuel tank if necessary.
Check the valve clearance. Refer to the Maintenance
Specifications chart for the proper value. Adjust or
repair as needed.
Check for carbon deposits in the cylinder. Clean if
needed.
Inspect the piston and piston rings. If the piston or rings
are worn or broken, replace the defective part.
Inspect the piston pin and piston pin hole. Replace if
worn.
If the engine still
makes an unusual
sound:
Rebuild the engine, replace the engine, or consider replacing the unit