Carver 356 2004, Owner'S Manual

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You are responsible for keeping the engine room venti-
lation system in proper operating condition. Inspect the
intake and exhaust ducts regularly to make sure they
are free of obstructions and have not collapsed or torn.
Inspect the blowers to make sure they are operating
properly. Replace any worn components with new
components of the same type.
The engine’s cooling system removes excess heat from
the engines and exhaust system. Closed systems use a
freshwater/antifreeze mixture to cool the engine. The
coolant runs through a heat exchanger where the excess
heat is transferred to raw water taken in through a
seacock for each engine. Open cooling systems use raw
water to cool the engines directly. If you are not sure
which type of cooling system is installed on your boat,
contact your Carver Dealer.
Both open and closed cooling systems require seawater
to function. Before each cruise, make sure the strainers
located near the seacocks are free of sea weed and other
debris. Open the cooling system seacocks before you
start your engines. The seacock valve for each engine's
cooling system is located in the engine room forward
each engine. If you have a closed system, make sure
that you have a sufficient level of coolant in the system.
Running an engine with an inadequate supply of
antifreeze, or with obstructed or restricted water
pickups or water strainers can cause serious damage
to the engine and its related systems.
Cooling System
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