Three Point Manual Drain System; Air Actuated Single Point Drain System; Boat In The Water - MerCruiser Tow Sports 5.7 MPI User Manual

THREE POINT MANUAL DRAIN SYSTEM

a

Air Actuated Single Point Drain System

BOAT IN THE WATER

NOTE: This procedure is written for the blue air pump that is attached to the engine.
However, any air source can be used.
1. Close the seacock (if equipped) or remove and plug the water inlet hose.
2. Remove the blue air pump from the engine.
3. Ensure that the lever on top of the pump is flush with the handle (horizontal).
4. Install the air pump on the actuator fitting.
5. Pull lever on air pump (vertical) to lock pump on the fitting.
c
6. Pump air into the system until both green indicators extend and water drains from both
sides of the engine. The port side will begin draining before the starboard side.
90-865253073 DECEMBER 2007
a - Blue drain plug
a
b
a - Actuator fitting
b - Green indicators
c - Manual release valve
a
e
d
8293
d - Blue air pump
e - Lever (locking)
Section 6 - Storage
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