e. Install the C‑clip onto the drain rod.
a - Drain rod alignment bracket
b - C‑clip
5. Tighten the two screws that secure the water distribution housing bracket to the engine to the specified torque.
Description
Nm lb–in. lb–ft
Water distribution housing bracket screws 58 – 42.8
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.
a - Air line cutter
b - Air line
Air Line Cutter 91‑883502
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.
All Models
Page 6A-18 © 2016 Mercury Marine 90-8M0099748 eng DECEMBER 2015
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