MAINTENANCE
SERVICE MANUAL NUMBER 24
Flushing System MCM (Sterndrive)
If engine is operated in salty, polluted or mineral-laden water, flush seawater cooling system
(preferably after each use) to reduce corrosion and prevent the accumulation of deposits
in the system. Thoroughly flush the seawater cooling system prior to storage.
NOTE: For additional protection against freezing and rust to the exhaust manifolds and
other components, a 50-50 mixture of antifreeze and water can be run through the engine
during Power Package Layup.
BOAT OUT OF WATER
1.
Install flushing attachment over water pickup holes in gear housing as shown.
2.
Attach a water hose between the flushing attachment and a water tap.
a
b
72693
a- Flushing Attachment
b- Hose
WARNING
When flushing, be certain the area around propeller is clear, and no one is standing
nearby. To avoid possible injury, remove propeller.
CAUTION
Do not run engine above 1500 rpm when flushing. Suction created by seawater pick-
up pump may collapse flushing hose, causing engine to overheat.
CAUTION
Watch temperature gauge on dash to ensure that engine does not overheat.
3.
Partially open water tap (approximately 1/2 maximum capacity). DO NOT use full water
pressure.
4.
5.
Place remote control in neutral, idle speed position, and start engine.
Operate engine at idle speed in neutral for 10 minutes, or until discharge water is clear,
then stop engine.
6.
Shut off water tap. Remove water hose and flushing attachment.
Index
Page 1B-24
90-861327--1 OCTOBER 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 305 CID, Mercury MerCruiser 350 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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Marine readers have rated Mercury MerCruiser Engines Service Manual Number 24 GM V-8 305 CID 350 CID 4.0 out of 4.0 based on 1 product reviews. Great performance engine.
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