Chris-Craft Launch 22 Owner's Manual download pdf (Page 71)

Systems

Chris-Craft 3–9

Seacocks and Thru-Hulls

Each model has thru-hulls associated with it. Depending upon the model and engine configuration of your

boat, it may also include one or more seacocks which allows for raw water engine cooling.

APPENDIX H provides CAD drawings for each boat model, including seacock and thru-hull locations. It

is your responsibility to become familiar with those drawings appropriate for your boat.

Most seacocks are equipped with a shut-off feature, normally in the form of a ball-valve. Each seacock

should be exercised periodically to ensure proper function and to prevent corrosion accumulation.

A seawater strainer, attached to the seacock, protects the system from foreign objects that may enter the

seacock. The strainer should be periodically cleaned and inspected for effective operation.

Drain Plugs

Ensure you re-install the drain plug BEFORE putting the boat back

into the water. Failure to do so will result in flooding of the engine

compartment.

Garboard Drain plugs (Figure 3-7) allows water to drain from the boat when trailered. After the boat is

pulled from the water, open the drain plug so as to allow accumulated water to drain. When feasible, and if

applicable, rinse the area with fresh water to prevent salt buildup and corrosion.

If the boat will not be operated for more than a month, the engine should be prepared for extended storage

as outlined in the Owner’s Manual, Maintenance, and Warranty manual.

Figure 3-7. Garboard Drain

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Chris-Craft Launch 22 Owner's Manual Page 71