MAINTENANCE
71
IMPORTANT: Mercury Marine recommends a MerCathode System or
Anti‑Corrosion Kit be installed whenever using a stainless steel propeller,
or if the boat is equipped with stainless steel components (immersed below
the waterline) that are connected into the engine ground system. If a boat
is equipped with stainless steel after planes, a large anode should be
installed on each to handle the increased galvanic corrosion potential.
Replace sacrificial anodes if eroded 50% or more.
Mercury Marine recommends using anodes sold through Mercury
Precision Parts only. Some other manufacturers of aluminum anodes use
alloys that are insufficiently pure to adequately protect critical drive
components for the duration of the anodes' expected life.
a
b
7454
a -
VI SSM ‑ An anode is
mounted to the underside of
the anti‑ventilation plate and
is retained by two nuts.
b -
VI SSM ‑ There are additional
anodes on the trim cylinder
pins.
In addition to the corrosion protection devices, follow these steps to inhibit
corrosion:
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