CORRECT CRAFT Air Nautique Specifications download pdf (Page 73)

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Remove plug from the transmission oil cooler and the elbow between the

thermostat housing and the circulating pump or remove hose from the water

pump on engine block of engines without elbows.

Remove drain plugs and / or hoses from rear or lower end of both exhaust

manifolds. Using a garden hose, flush both manifolds by removing the plugs

at the front or the two hoses feeding water from the thermostat housing to the

manifolds.

Disconnect the hose from the inlet fittings of the raw water supply pump and

lower the end to drain any water that may be trapped.

Remove the raw water supply pump and remove the impeller. If inspection

proves the impeller is in good condition, store it in an accessible spot for

reinstallation at the end of the storage period. A damaged or badly worn

impeller should be discarded and a new one installed at the end of the

storage period. Removing the impeller during storage will prevent the

impeller vanes from drying and taking a permanent “set.”

Loosen water pump and alternator drive belts. Re-tighten to proper tension

before starting engine.

Fresh Water Cooled Engines Only

On fresh water cooled engines with antifreeze in the cooling system, remove

hoses from the rear of the manifolds for draining. Drain raw water from the

heat exchanger and oil coolers by removing drain plugs and all raw water

hoses (1” or 1 1/4” ID hoses only) by removing them from their fitting.

Test the antifreeze solution to be sure it is strong enough to offer full

protection against freezing. Antifreeze should be changed after winterization

each year.

Raw Water Cooled Engines Only

Remove drain plugs on both sides of the engine block and engine oil cooler.

Probe holes with a short piece of wire to make certain all the water has

drained from the engine.

CAUTION! THE GM 5.7 KNOCK SENSOR IS LOCATED IN THE

DRAIN HOLE FOR THE RIGHT SIDE OF THE ENGINE BLOCK. DO

NOT DROP THE SENSOR OR IT MAY BE DAMAGED. WHEN

REINSTALLING THE SENSOR, MAKE SURE THE THREADS ARE

CLEAN AND TORQUE THE SENSOR 11 - 16 LB. FT.

When draining is completed, flush the block using a garden hose to flush salt

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