Flushing The Power Package; Flushing Attachments - MerCruiser Sterndrive 4.3 MPI User Manual

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Section 5 - Maintenance
Description
Mercury Phantom Black
Spray all electrical connections with sealant.
Tube Ref No.
Inspect the sacrificial trim tab or anode plate if equipped, at regular intervals and replace
it before it is half gone. If a stainless steel propeller is installed, additional anodes or a
MerCathode System will be required.
Inspect the propeller shaft for fishing line, which can cause corrosion on a stainless
steel shaft.
Remove the propeller at least every 60 days and lubricate the propeller shaft.
Do not use lubricants containing graphite on or near the aluminum in saltwater.
Do not paint trim tabs or the mounting surface.

Flushing the Power Package

Your boat could come equipped with a combination of any of three different types of water
pickups: through the hull, through the transom, and through the sterndrive. The flushing
procedures for these systems are separated into two categories: sterndrive water pickups
and alternative water pickups. Consult your authorized Mercury MerCruiser dealer for
further explanation.
IMPORTANT: Bravo models equipped with closed cooling require dual water pickups and
must be equipped with a through‑hull or through‑transom pickup in addition to the
sterndrive water inlets.
IMPORTANT: Alpha engines with the sterndrive water inlet blocked off at the gimbal
housing, and using a through‑hull water inlet, need a supply of cooling water available to
both the sterndrive and to the engine during operation

FLUSHING ATTACHMENTS

b
c
Flushing attachments for dual water pickup
Page 104
Description
Liquid Neoprene
25
a
21514
a -
Flushing device
b -
Hose attachment
Where used
Bare metal
Where Used
All electrical connections
b
Flushing attachments for side water pickup
c -
Dual water pickup flush gearcase
seal kit
90-864195061 NOVEMBER 2006
Part number
92‑ 802878‑1
Part No.
92-25711-3
a
21515

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