Seacock - Mercury MerCruiser Service Manual

Models with Closed Cooling
IMPORTANT: An external seawater pickup must have an integral seacock.
a
c
g
Tube Ref No.
Loctite 567 PST Pipe
9
Sealant
RTV 587 Ultra Blue
116
Silicone Sealer

Seacock

The American Boat and Yacht Council (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.
Page 6C-8
Seawater pickup with an integral seacock
b
d
e
h
i
j
7558
Description
© 2016 Mercury Marine
Transom pickup
a - Hose fitting ‑ apply Loctite 567 to the threads
b - Nut (4)
c - Gasket
f
d - O‑ring (4)
e - Washer (4)
f - Screw (4)
g - Plastic plug ‑ apply Loctite 567 to the threads
h - Pickup ‑ apply RTV 587 to the sealing surfaces
i - Screen
j - Screw (2) ‑ apply RTV 587 to the shaft
Where Used
Hose fitting threads and plastic plug threads
Sealing surfaces and screw shaft
7532
90-8M0099748 eng DECEMBER 2015
Part No.
92-809822
92-809825