Boat Out Of The Water - MerCruiser 5.7 MPI User Manual

Section 6 - Storage
4. Visually verify that water is draining. If water does not drain, remove the blue drain plug
from the distribution housing and drain manually.
5. Allow the system to drain for a minimum of five minutes. We recommend leaving the
drain system open while transporting the boat or performing other maintenance.
6. Reinstall the blue drain plug in the thermostat housing.
7. Close the drain system by rotating the blue handle clockwise until it stops and install
the blue drain plug, if removed. The handle is fully seated when no red is visible. Do
not overtighten the handle, as this action will create new threads.
8. Open the seacock (if equipped) or unplug and reconnect the water inlet hose before
operating the engine.

BOAT OUT OF THE WATER

1. Place the boat on a level surface to ensure complete draining of system.
2. Rotate the blue handle counterclockwise until it stops (approximately two turns). The
red on the handle shaft indicates that the drain system is open. Do not overtighten the
handle, as this action will create new threads.
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a - Drain location ‑ orange or red
a - Blue handle
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b - Blue drain plug
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90-864197072 NOVEMBER 2007