Multi-Point Drain (Mpd) System - Mercury Inboard 5.7L Manual

Multi‑Point Drain (MPD) System
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. It may be necessary to clean
out the drain holes using a stiff piece of wire. Do no until the entire system is drained.
a.
b.
c.
90-860174050 JUNE 2005
a
a - Check valve (if equipped)
Port and starboard side of cylinder block
Bottom of exhaust manifolds
b
a
a - Cylinder block drain plug
Water circulating pump hose
a
a - Drain plug
6131
b
a
b - Exhaust manifold drain plug
6143
Storage
6129
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