MerCruiser Scorpion 350, User Manual

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Section 6 - Storage
90-899883175 DECEMBER 2007 Page 77
7. Verify that water is draining from each opening. If not, use the
Three Point Manual
Drain System
instructions.
a
b
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a - Port side drain location
b - Starboard side drain location
8. Allow the system to drain for a minimum of five minutes. Pump air as necessary to keep
the green indicators extended.
9. Crank the engine over slightly with starter motor to purge any water trapped in the
seawater pump. Do not allow engine to start.
10. Remove the air pump from the air manifold and return it to the mounting bracket.
11. Mercury MerCruiser recommends leaving the drain system open while transporting the
boat or while performing other maintenance. This helps ensure that all water is drained.
12. Before launching the boat, pull up on the manual release valve. Verify that the green
indicators are no longer extended.
a
6135
a - Green indicators
Multi‑Point Drain (MPD) System
BOAT OUT OF THE WATER
1. Place the boat on a level surface to ensure complete draining of the system.
2. Remove the blue drain plugs from the following locations. If necessary, clean out the
drain holes using a stiff piece of wire. Do so until the entire system is drained.
a.
Port and starboard side of cylinder block