MAINTENANCE
SERVICE MANUAL NUMBER 24
Flushing System MIE (Inboard and Ski)
CAUTION
If boat is in the water, seacock, if so equipped, must remain closed until engine is
to be re-started, to prevent water from flowing back into cooling system and/or boat.
If boat is not fitted with a seacock, water inlet hose must be left disconnected and
plugged (to prevent water from flowing back into cooling system and/or boat). As
a precautionary measure, attach a tag to the ignition switch or steering wheel of the
boat with the warning: Open seacock or reconnect water inlet hose before starting
engine.
IMPORTANT: If a seacock is to be installed for this purpose, valve used must have
an internal cross-sectional area equal to or greater than water inlet hose to prevent
restricting water flow during normal operation. A 1-1/4 in. (32 mm), or larger, brass
ball valve or gate valve is recommended.
1.
If boat is in water, close seacock, if so equipped, or disconnect and plug seawater inlet
hose to prevent seawater from entering boat.
2.
3.
4.
5.
Remove inlet hose from seawater pickup pump.
Using an adaptor, connect a water hose from a water tap to seawater pump inlet.
Partially open water tap (approximately 1/3 maximum). Do not use full water pressure.
Place the remote control lever in neutral position and start engine.
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.
6.
Operate engine at idle speed in neutral for 10 minutes, or until discharge water is clear.
Stop engine.
7.
Shut off water tap. Remove water hose and adaptor from pump inlet and reconnect
water inlet hose. Be sure to tighten hose clamp securely.
IMPORTANT: If boat is in the water, do not open water inlet valve until engine is to be
restarted to prevent contaminated water from flowing back into engine. If boat is not
fitted with a valve, leave water inlet hose disconnected and plugged.
Index
Page 1B-26
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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