Engine Flush Out Option
3. The engine must be running at idle during
Allow water to ﬂush the engine and exhaust
manifold for about ten minutes.
MerCruiser engine ﬂush out procedures if not
followed in accordance to their speciﬁc
instructions can result in costly engine damage.
Follow MerCruiser’s speciﬁc instructions for
ﬂush-out procedures located in the Engine
operator’s manual. Consult engine
manufacturer’s authorized service center for
additional assistance should further questions
Turn engine OFF and turn water off. Disconnect
hose; replace and tighten cap securely.
Reinstall cap onto coupler after ﬂushing.
The cap must be secured after ﬂushing of
engine to prevent air from entering the system
and resulting in possible engine damage.
Make sure that no section of ﬂush hoses is in
contact with moving or hot engine parts or
abrasive surfaces such as screw threads,
sharp edges, etc., which could damage the
hoses. Damage to the hoses could cause leaks
and possible ﬂooding of the engine
compartment. Periodically check hoses for
The Four Winns installed ﬂush out kit for
MerCruiser engines may be used with the
boat in or out of the water and the engine ON.
See MerCruiser’s engine operator’s manual for
the speciﬁc engine ﬂushout procedure.
For out of water ﬂushing, avoid possible injury
by removing the propeller and ensure that no
people or animals are in the area of the drive
unit while ﬂushing. Contact with moving drive
components and the propeller can cause
personal injury or death.
To ﬂush out the Mercruiser engine follow the guide-
lines below as well as the speciﬁc procedure outlined
in MerCruiser’s engine operator’s manual:
Remove cap from coupling and attach water
Turn on water supply - See Engine owner’s
General Maintenance - Section R
Owner’s Manual Page 181
|Categories||Four Winns Manuals, Four Winns V-Series Manuals|
|Tags||Four Winns V375|
|Document Type||Owner's Manual|
|Product Brand||Boats and Cruisers, Four Winns. For support contact your dealer at http://www.fourwinns.com/locate-dealer.aspx|
|Document File Type|
|Wikipedia's Page||Outboard Marine Corporation|
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