Owner’s Manual &
Installation Instructions
Revision 6e
Page 36
Engine Monitoring Alarm System
The ILMOR Marine engine alarm system will indicate an alarm condition if any of
the monitored engine parameters falls out of the nominal operating range. In all
cases the proper response to the alarm is to throttle back immediately and check
the gauges to see which system is out of range. If the alarm stops sounding the
system has returned to normal operating values.
Alarm Activation Conditions:
Alarm
Threshold
Water Temperature
Over 200º F
Oil Temperature
Over 280º F
Oil
Pressure
Less
than
30psi
Note
The engine monitor alarm will sound when the ignition is turned on without the
engine running. The alarm will shut off immediately when the engine is started and
normal oil pressure exceeds 30psi. If the alarm sounds for any other reason
contact your Ilmor authorized service center before re-starting the engine.
Water temperature
The alarm will sound if the engine coolant exceeds 200º F. Throttle back and check
the water temperature gauge and the sea water pressure gauge. If the sea water
pressure is normal (> 5PSI at idle) the coolant temperature should start to return to
normal. If the temperature continues to increase shut down the overheated engine
immediately.
Oil pressure
The alarm will sound if the engine oil pressure falls below 30psi. If at any time the
oil pressure drops to zero shut down the engine immediately. If oil pressure
remains above 20psi immediately throttle back. Once throttled back the oil
pressure should return above the 30psi level. If the pressure continues to drop shut
down the engine immediately and return to land. Check engine oil level in
appropriate engine.
Oil temperature
The alarm will sound if the engine oil temperature exceeds 270º F. Throttle back
and check the oil temperature gauge. The oil temperature should start to return to
normal. If the temperature continues to rise shut down the overheated engine
immediately and return to land.
