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NOTICE
Fresh water cooled engines are shipped from the
Indmar factory filled with a 50/50 mix of propylene
glycol antifreeze and water. This mixture provides freeze
protection down to -26°F (-32°C). If the temperature in
your area is expected to go below this level of protection,
see your Indmar dealer to have the antifreeze mixture
adjusted for your needs. Engines shipped out of the
United States may not be shipped with fluids.
NOTICE
Running your engine with your boat out of water will
damage or ruin your engine. Damage to your engine
caused by overheating is not covered by your warranty.
Marine engines are cooled by the raw water outside of
the boat. For this reason, do not start the engine when
the boat is out of the water without an engine flushing
device available from your Indmar dealer.
NOTICE
A typical home water supply cannot supply enough
water to operate the engine at high RPM. Do not run
the engine above 1000 RPM when connected to a
hose (home supply). Monitor the engine temperature to
ensure the engine does not overheat.
© 2016 Indmar Marine Engines
Fresh Water (Closed) Cooling Systems
!
Avoid possible skin burns, turn the engine
"OFF" and allow it to cool enough so no heat is
registered on the temperature gauge. Only after
the engine is completely cooled is it safe for you
to remove the coolant reservoir cap to check the
level.
All Indmar engines covered in this manual have a closed
fresh water cooling system. In the fresh water system
the cooling water contains anti-freeze and re-circulates
throughout the engine. If your engine is equipped with a
heat exchanger tank, it has a fresh water cooling system.
Raw water is pulled through the intake and flows through
chambers in the heat exchanger and then discharged
overboard with the engine exhaust.
MAINTENANCE
WARNING
7-9
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