Seawater Pickups; Through-Hull Mounted - Mercury MerCruiser MCM 454 Mag MPI Service Manual

SERVICE MANUAL NUMBER 23

Seawater Pickups

Refer to manufacturer's instructions for information on removal and installation of
other than Quicksilver Seawater Pickups.
IMPORTANT: Seal the inside edges of any hole made through the hull with a suitable
sealant to prevent water absorption and deterioration.

Through-Hull Mounted

1. Seal inside edges of 1-3/4 in. (44 mm) hole in hull using a suitable sealer.
2. Apply marine caulking (sealer) to mounting surface on seawater pickup where hull con-
3. Ensure slots in seawater pickup are facing forward (toward bow of boat) and install sea-
4. Fasten pickup with four appropriate mounting screws (if so designed).
5. Apply marine caulking as needed inside boat. Apply Loctite 27131 to threads of nut and
NOTE: If pickup being installed does not have mounting screws on underside where
mounted to hull, be certain, after nut is torqued, that slots are still facing forward.
Index
90-861326--1 MARCH 1999
Downloaded from https://needmanual.com/
a - Seawater Pickup
b - Seawater Inlet Slots (Must Face Forward - Parallel With Water Flow)
c - Mounting Screw Holes (If Equipped)
d - Nut
tact will occur when installed.
water pickup through hull. The slots must be parallel with flow of water.
install on pickup on inside of boat. Torque nut to 35 lb-ft (42 Nm).
NOTICE
b
a
SEAWATER COOLED MODELS
d
c
Page 6A-5
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