Drain System Identification; Air-Actuated Single-Point Drain System; Manual Drain System; Boat In The Water - Mercury MerCruiser Horizon 8.2 ECT Manual

Section 6 - Storage

Drain System Identification

Air-Actuated Single-Point Drain System

a
c c
a

Manual Drain System

a a
Air‑Actuated Single‑Point Drain System

Boat in the Water

NOTE: This procedure is written for the air pump that was shipped with the engine from the factory. However, any air source
can be used.
1. Close the seacock (if equipped) or remove and plug the water inlet hose.
2. Obtain the air pump.
3. Remove the threaded cap from the air connection.
4. Ensure that the lever on top of the air pump is against the handle (horizontal).
Page 68
a - Manual pressure release valve
b - Threaded cap for air connection
b
c - Green indicators
43070
a - Starboard side
air‑actuated drain
location
b - Port side
air‑actuated drain
location
b
50411
a - Starboard side blue
drain plugs
b - Port side blue drain
plug
b
50412
90-8M0061999 MAY 2012
eng