Mercury INSTALLATION MANUAL D7.3L D-TRONIC - Manual (Page 46)

D7.3L D-TRONIC DIESEL ENGINES - BRAVO MODELS
Page 46 of 90
Engine Connections
Quicksilver Seawater Pickup and Seacock
1. Drill a 2 in. (50mm) hole thru hull in appropriate location (Refer to “Installation Require-
ments.”).
2. Apply marine caulking (sealer) to mounting surface on seawater pickup (thru-hull fitting)
where hull contact will occur when installed.
3. Ensure slots in water pickup are
facing forward
and install water pickup. Position wash-
er on fitting and install large nut. Tighten nut securely.
70355
70589
f
a
e d
e c
b
a
f
a -
Seawater Pickup (Thru-Hull Fitting)
b -
Washer
c -
Large Nut
d -
Hull of Boat
e -
Marine Caulking
f -
Slots Facing Forward (Toward Bow of Boat)
4. Install seacock on seawater pickup. Tighten securely.
5. Install 1-1/2 in. (38mm) hose connector on seacock. Tighten securely.
70355
70355
a
b
c
a -
Seacock
b -
Seawater Pickup (Thru-Hull Fitting)
c -
1-1/2 in. (38mm) Hose Connector
IMPORTANT: Seawater hose used must be wire reinforced to avoid collapsing hose
when suction is created by seawater pump impeller.