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and look into the pump chamber while slowly turning the pump pulley. A
badly damaged impeller may be detected by doing this.
If a problem is found and corrected, do not attempt to restart the engine until
it has cooled down to normal temperature. This is important to prevent engine
damage due to thermal shock.
Fresh Water Cooling
Engines manufactured with an optional fresh water cooling system are
identified with an "X" in the second position from the left in the model
identifier on the engine identification tag.
The PCM freshwater cooling system consists of two (2) sections. The raw
water section and the self contained fresh water section which is filled with a
fifty-fifty mixture of anti-freeze and water.
The coolant in the freshwater section circulates through the engine block,
heads and the intake manifold absorbing the heat created by the engine
operation. When the engine is at operating temperature, the thermostat allows
coolant to flow around the sides of the tubes in a heat exchanger where heat is
transferred to the raw water flowing through the center of the heat exchanger
tubes. The raw water is then directed into the manifolds and risers where it
mixes with the exhaust.
If your engine begins to overheat, you should inspect this heat exchanger as
well as the previously mentioned areas.
Checking Coolant Level
WARNING: Reservoir is equipped with a 14 lb. (6.35kg) pressure cap.
DO NOT remove the pressure cap when the engine is hot. This could
cause personal injury. ALWAYS ALLOW THE ENGINE TO COOL
OFF BEFORE ATTEMPTING TO REMOVE THE PRESSURE CAP.
To remove the pressure cap, turn it a quarter of a turn to the left and
allow pressure in the cooling system to escape. After the pressure is
released, turn the cap all the way off.
The fresh water section of the heat exchanger should be checked each time you
use the boat for proper coolant level. Coolant should be maintained at least one
(1) inch (2.54cm) below the pressure cap seat in the expansion tank to allow
room for coolant expansion.
If the coolant is escaping from the system, inspect the system components for
leakage and correct as necessary. Pressure test the cap to insure proper
operation. A defective cap may allow coolant to escape through the overflow
during engine operation and be extremely difficult to detect. Contact your
Correct Craft dealer at once if this problem can not be resolved by the above
procedures.
8.14
and look into the pump chamber while slowly turning the pump pulley. A
badly damaged impeller may be detected by doing this.
If a problem is found and corrected, do not attempt to restart the engine until
it has cooled down to normal temperature. This is important to prevent engine
damage due to thermal shock.
Fresh Water Cooling
Engines manufactured with an optional fresh water cooling system are
identified with an "X" in the second position from the left in the model
identifier on the engine identification tag.
The PCM freshwater cooling system consists of two (2) sections. The raw
water section and the self contained fresh water section which is filled with a
fifty-fifty mixture of anti-freeze and water.
The coolant in the freshwater section circulates through the engine block,
heads and the intake manifold absorbing the heat created by the engine
operation. When the engine is at operating temperature, the thermostat allows
coolant to flow around the sides of the tubes in a heat exchanger where heat is
transferred to the raw water flowing through the center of the heat exchanger
tubes. The raw water is then directed into the manifolds and risers where it
mixes with the exhaust.
If your engine begins to overheat, you should inspect this heat exchanger as
well as the previously mentioned areas.
Checking Coolant Level
WARNING: Reservoir is equipped with a 14 lb. (6.35kg) pressure cap.
DO NOT remove the pressure cap when the engine is hot. This could
cause personal injury. ALWAYS ALLOW THE ENGINE TO COOL
OFF BEFORE ATTEMPTING TO REMOVE THE PRESSURE CAP.
To remove the pressure cap, turn it a quarter of a turn to the left and
allow pressure in the cooling system to escape. After the pressure is
released, turn the cap all the way off.
The fresh water section of the heat exchanger should be checked each time you
use the boat for proper coolant level. Coolant should be maintained at least one
(1) inch (2.54cm) below the pressure cap seat in the expansion tank to allow
room for coolant expansion.
If the coolant is escaping from the system, inspect the system components for
leakage and correct as necessary. Pressure test the cap to insure proper
operation. A defective cap may allow coolant to escape through the overflow
during engine operation and be extremely difficult to detect. Contact your
Correct Craft dealer at once if this problem can not be resolved by the above
procedures.
8.14
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