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Indmar Marine Engines
If any of the following conditions is noted:
• Low Oil Pressure
• High Coolant Temperature
• High Transmission Oil Temperature
EFI engines may enter a Power Reduction mode. Power
reduction limits the engine speed to a “safe maneuver-
ing” speed of about 2000 RPM. This mode is intended to
allow the driver to get out of harm’s way and to reach
safe harbor for engine service.
If the check engine indicator should go on, or if the
engine enters the Power Reduction mode, you should
have your dealer check the engine as soon as possible.
Schedule engine service at once when this
light is illuminated. Failure to have your
engine serviced when a check engine light
signal is given, may cause damage to your
engine or your emissions system.
The ECM also provides for an engine RPM reduction if
engine coolant temperature approaches the high operat-
ing limit. If the engine RPM should decrease due to high
coolant temperature, stop the engine and inspect the raw
water intake, sea cock and sea strainer (if equipped) and
hoses for blockage or problems.
Follow the boat manufacturer’s instructions if the sea
strainer is blocked.
CHECK TRANSMISSION LIGHT
If the engine is equipped with the Walters V-Drive trans-
mission, there may also be a Check Transmission light. If
low oil pressure is sensed in the V-Drive, the light will go
on indicating the problem. Under normal operation, the
light will stay lit at idle and slow speed operation until
enough pressure is produced (1200 RPM ± 400 RPM).
Extended cruising or trolling at low RPM is not harmful,
even if the light is lit, provided that the V-Drive oil level is
sufficient. If the oil level is normal and the light stays lit
above 2000 RPM, take the boat to your Indmar dealer
for service.
ENGINE COOLING
Raw water cooled engines have two water pumps. One
circulates water throughout the engine. The other pump
uses water from the sea, lake or river to feed raw water
to the engine. This raw water pump is designed to use
the water it pumps to lubricate its impeller. Do not run the
engine unless the boat is in water. If you run the engine
with the boat out of the water, the water pump may be
damaged, causing your engine to overheat or start a fire.
OME0502-15 Body.qxp_OM0502-05 Body.qxd 5/20/14 12:45 PM Page 4-6
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