4-6
Indmar Marine Engines
CHECK TRANSMISSION LIGHT
If the engine is equipped with the Walters V-Drive trans-
mission, there is also 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.
Figure 4.6 – Raw Water Pump
Running engine without adequate cooling
can cause engine to overheat and may result
in fire, explosion, death and/or personal seri-
ous injury.
!
WARNING
INDM-A019
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Summary of Contents for 350 H.O.
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