46
L510001-05
ENGINE MAINTENANCE - 11
FLUSHING COOLING SYSTEM - SEA-WATER
SECTION
To prevent silt and/or salt build-up in the cooling system
(fresh or raw-water cooled), fl ush the sea-water section
of the cooling system with fresh water at specifi ed
intervals.
CAUTION
Do not operate the engine without water being
supplied to the sea-water pump. The sea-water
pump impeller may be damaged and subsequent
overheating damage may result.
Figure 11-9 Typical Sea-Water Inlet
CAUTION
Do not run the engine above 1500 RPM when
fl ushing. Suction created by the sea-water pump
may collapse the fl ushing hose, causing the engine
to overheat. Watch the temperature gauge while
fl ushing to ensure the engine does not overheat.
INLET
HOSE
CLOSE
SEACOCK
BEFORE
REMOVING
INLET
HOSE
ATTACH
FLUSHING
ADAPTER
HERE
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