Owner’s Manual Page 70Electrical Systems - Section H
B. Galvanic Corrosion
Galvanic corrosion results from a potential electrical
difference existing between dissimilar metals
immersed in a conductive solution (e.g., salt or
brackish water). If these metals touch or are otherwise
electrically connected, this potential difference pro-
ducesanelectronowbetweenthem.Theattackon
the more active metal is usually increased and the
attack on
the less active metal is decreased, as compared to
when these metals are not touching.
C. Corrosion Prevention
Anti-corrosion anodes are attached to the bottom of
the gimbal housing to prevent corrosion to your stern
drive and underwater parts. These anodes will be
slowly eroded away by galvanic action and require
periodic inspection. Please refer to the section on
“Anti-Corrosion Anodes” or “Corrosion and Corrosion
Protection” in your engine manufacturer’s manual for
additional information. The engine manual is included
in the owner’s packet.
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