FNM HPE Series Owner's Manual page 129

Possible Fault
If the engine overheats excessively
Seacock closed
Leaks in the sea water suction system.
Sea water filter clogged.
Sea water impeller damaged
Coolant level too low
Leaks in the coolant circuit.
Heat exchanger damaged or clogged by rubber parts of the
damaged impeller.
Oil level too high.
Oil level too low.
Insufficient comburent air.
Engine becomes apparently overheated as a result of faulty
temperature switch, sensor or meter.
Faulty thermostat .
Faulty coolant pump
Faulty oil filter/dirty oil exchanger.
Faulty turbo compressor.
If not all cylinders are working
Air in fuel supply system.
Fuel filter clogged with water and/or contamination.
Leaking in the fuel supply line or fuel injection line
Faulty injectors.
Locked suction valves.
®
FNM HPE Series
Possible Remedy
Open.
Check / replace.
Check/clean.
Check / replace.
Check / fill up.
Check .
Check/clean.
Reduce the level.
Raise the level.
Check/clean the filter.
Check / replace.
Check / replace.
Check/clean.
Replace.
Check /replace
Check and bleed.
Check or replace.
Check / replace.
Check, replace if required.
Check, replace if required.
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