MAINTENANCE
ANTI-CORROSION PROTECTION
ANTI-CORROSION
PROTECTION
Sacrificial Anodes
Galvanic corrosion occurs
in
fresh or salt water.
Salt, brackish, and polluted water can accelerate
corrosion. "Sacrificial" anodes are intended to pro-
tect the underwater
metal components of the out-
board from
galvanic corrosion.
Outboards are equipped with
sacrificial anodes.
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Testing Procedure - Continuity
Calibrate multimeter
on
"HIGH" ohm scale.
Connect meter leads between engine ground and
anode surface.
1. Black meter lead 270757
2. Red meter lead
The multimeter should indicate little or no resis-
tance.
If resistance
is
high, check the following:
•
Remove the anode and clean the area where
the anode
is
installed.
• Clean
the mounting screws.
TYPICAL
1. Anode
000288R • Install the anode and test again.
Visually inspect anodes and metal components
below water level. Erosion of anodes
is
normal
and indicates the anodes are functioning properly.
IMPORTANT: Anodes that are not eroding may
indicate that the anodes are not
properly
grounded. Anodes and the mounting screws must
be
clean and tight for effective corrosion protec-
tion.
For best anode performance:
• Replace all anodes that have eroded or disinte-
grated to two-thirds of their
original size.
• Do not paint or apply protective coatings to
anodes or anode fasteners.
• Avoid using metal-based antifouling paint
on
the
boat or outboard.
62
Metallic Component Protection
Protect metal components
on
outboards from cor-
rosion. Use the following products
to
minimize
corrosion.
• Anti-Corrosion Spray provides a heavy, waxy
coating to protect components.
•
"6
in
1" Multi-Purpose Lubricant provides a thin
film of anti-corrosion protection.
Exterior Finishes
Maintain the outboard's exterior finish to prevent
corrosion and reduce oxidation.
• Use automotive wax to protect the outboard's
exterior finish from oxidation.
• Clean regularly using clean water and mild
detergent soap.
• Touch-up damage to painted surfaces promptly.
• Protect moving components with appropriate
lubricants.
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