Owner`s manual

Important: This is a critical function of routine maintenance. Even clean-appearing
waterways may have debris such as pine needles or moss that can enter the cooling
system and create a blockage. Failure to perform this function can result in serious
overheating of the engine. Damage to the engine and/or transmission caused by
overheating is not covered by warranty! Always pay attention to your temperature
gauge, even if you are carefully performing this check. Failure of the raw water im-
peller or blockage of the transmission cooler are frequent causes of over-heating.
Because this process should be completed while the engine is cool (in order to avoid burns), it is
recommended that this check be completed prior to starting the engine.
• EnsuretheengineisOFFandtheenginesafetystartingswitchisdisconnected.Leave
the throttle/shift control lever in neutral. Open the engine compartment. The trans-
mission cooler is located either near the top or on the side of the engine.
• Loosentheclampsurroundingthewaterintakehoseatthebackofthetransmission
cooler and slide off the hose.
• Checktheinsideforsignsofdebris.Evensmallamountsofdebrismustberemoved
to prevent the material from clogging the cooler and preventing it from functioning
properly. The boat must not be operated with any foreign materials blocking the flow
of water through the cooler.
• Aftercleaning,re-attachthehoseandclamp.
Important: This is a critical function of routine maintenance. Even clean-appearing
waterways may have debris such as pine needles or moss that can enter the cooling
system and create a blockage against the screen. Failure to perform this function
can result in serious overheating of the transmission. Damage to the engine and/or
transmission caused by overheating is not covered by warranty! Always pay atten-
tion to your temperature gauge, even if you are carefully performing this check. Fail-
ures of the raw water impeller or blockage of the transmission cooler are frequent
causes of over-heating. Water in the transmission oil as a result of cooler failure may
also void the warranty!
This procedure applies on to boats equipped with full-closed cooling system. Because this process
should be completed while the engine is cool (in order to avoid burns), it is recommended that this
check be completed prior to starting the engine.
•EnsuretheengineisOFFandtheenginesafetystartingswitchisdisconnect-
ed. Leave the throttle/shift control lever in neutral. Open the engine compart-
ment. Locate the closed cooling system tank adjacent to the engine.
•Removethecapandcheckthelevel.VerifythatthefluidisattheFILLline.(Whenthe
engine heats, the water will expand; that is the reason the tank should not be full when
the engine is cold.) If the level is at or below that, add ILMOR antifreeze. Use premixed
50/50 or use a 50/50 mix of ILMOR antifreeze and distilled water. The cooling system
will take between 5.8 gallons (22L) and 6.8 gallons (26L) of coolant in total.
Check the
Transmission Cooler
Check the
Coolant Level
ILMOR MV8 Owner’s Manual • Page 15