MAINTENANCE
66
To prevent silt and salt buildup in the cooling system, flush with
freshwater.
1. Install a flushing hose from a water tap to the flushing
connector. Consult your boat owners manual for the location
of the flushing connector.
2. Completely open the water tap. Place the remote control in
neutral position and start the engine. Operate the engine at
idle speed, in neutral, for about 10 minutes or until discharge
water is clear. Stop the engine, shut off the water, and remove
the flushing hose.
Cleaning Seawater (Raw Water) Section of Oil
Cooler
ENGINE COOLERS
IMPORTANT: Cleaning of the engine oil coolers should be
performed by an authorized Mercury Marine dealer.
3712
a
d
d
a
b
b
c
Transmission/Power Steering Cooler ‑ (Starboard Side)
a -
Water hose clamps
b -
End plate/gaskets
c -
Cooler
d -
Retaining clamps
1. Loosen the inlet and outlet water hose clamps "a" and remove
the hoses from the cooler "c."
2. Remove the two clamps "d" that retain the cooler and lift the
cooler away from the engine to gain access to the end plate
fasteners.
Summary of Contents for HP1200 SCi Dry Sump
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