Mercury MerCruiser Service Manual page 422

All Models
e. Install the C‑clip onto the drain rod.
51254
5. Tighten the two screws that secure the water distribution housing bracket to the engine to the specified torque.
Description
Water distribution housing bracket screws
6. On an air‑actuated drain system, connect the air lines to the water distribution housing and air manifold.
IMPORTANT: Ensure that the air lines are routed to avoid sharp bends and contact with moving parts.
NOTE: The air line must remain cylindrical. The air line must not be distorted when cut. The end of the air line must be
within 1 mm (0.04 in.) of square.
a. Using an air line cutter, cut the bulk air line to the appropriate length.
Air Line Cutter
b. Connect the air lines from the air manifold assembly to the seawater pump connectors and the water distribution
housing connectors by inserting the end of the air lines approximately 6 mm (1/4 in.) onto the connectors.
c. Connect the 3/16 in. O.D. air lines into the lower connectors on the air manifold, the water distribution housing, and
the seawater pump.
Page 6A-18
a - Drain rod alignment bracket
b - C‑clip
a
b
a
© 2016 Mercury Marine
Nm
58
a - Air line cutter
b - Air line
b
42000
91‑883502
90-8M0099748 eng DECEMBER 2015
lb–in. lb–ft
– 42.8