Cooling System
90-863758060 AUGUST 2006 Page 7A-7
Tube Ref No. Description Where Used Part No.
9
Loctite 567 PST Pipe Sealant
Hose fitting threads and plastic
plug threads
92-809822
Tube Ref No. Description Where Used Part No.
116
RTV 587 Ultra Blue Silicone
Sealer
Sealing surfaces and screw
shaft
92-809825
Seacock
The ABYC and other industry standards and regulations require the use of a seacock on
certain types of applications to stop the entry of seawater in the event of a leak in the cooling
system. Refer to applicable standards and regulations for specific requirements. The
seacock also allows the seawater to be shut off when servicing the engine.
The seacock must provide minimum restriction to seawater flow (see Specifications). A
ball valve or gate valve is recommended. The ball valve is most common and is typically
equipped with a lever type handle that operates in a 90 degree arc. This design gives a
clear indication of whether the valve is open or shut. Industry standards and requirements
typically require that the seacock be rigidly attached to the hull at the seawater pickup.
Seacock location should be readily accessible for quick, easy operation.
7532
Typical seacock
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