N
OTE: damagE duE TO cOrrOsiOn is nOT
cOvErEd undEr warranTy!
Galvanic Corrosion
Galvanic corrosion (electrolysis) to the boat is the de-
composition of metal due to the effects of electrolytic ac-
tion. When two (2) dissimilar metals are immersed in a
conductive uid (e.g., salt water), an electric current is
produced, much like the action of a battery. As the cur-
rent ows, it takes with it tiny bits of the softer metal. If left
unchecked, severe damage may occur over time.
If the boat is operated in salt, polluted or brackish wa-
ters, even temporarily, the boat should be equipped with
a transom-mounted zinc anode to prevent damage to
those metal parts coming in contact with the water.
The zinc is, by design, self-sacricing. It is slowly eroded
away by electrolytic action and requires periodic inspec-
tion for deterioration.
If the zinc shows extreme erosion, it must be replaced
to continue protection, or damage to other metal parts
may result.
MasterCraft Saltwater Series boats come equipped with
the zinc anode. For fresh water boats that may be oper-
ated in polluted or brackish water, an authorized Master-
Craft dealer can provide guidance in securing and install-
ing a zinc anode for protection.
Salt Water Corrosion
The boat has been designed for operation in fresh water
unless it is a model in the MasterCraft Saltwater Series.
If operating a fresh-water model temporarily in salt, pol-
luted or brackish water, ush the boat with fresh water
as soon as possible afterward. The entire engine cooling
system should be ushed with fresh water for at least ten
(10) minutes after each use in such waters.
Boats operated continuously in salt water should be
equipped with the closed cooling system to preserve
engine life.
Marine Growth
If accelerated marine growth is a problem in the area in
which the boat will generally be operated, an anti-foul-
ing bottom paint may be necessary to slow growth while
protecting the gel coat.
Before selecting a bottom paint, talk with other boaters
and an authorized MasterCraft dealer’s service depart-
ment to determine the product that works best in the
area. Many local variables may also affect the selection
of paint. Be sure to follow the paint manufacturer’s direc-
tions exactly.
Be sure all fasteners used are approved and rated
for marine use. Most fasteners used on Master-
Craft boats are stainless steel or specially coated
to resist corrosion.
Use of improper parts may cause component or
engine failure. Such failure may result in death or
serious injury!
Stainless Steel and Chrome
Stainless steel and chrome-plated parts are not totally
resistant to corrosion. Occasional cleaning and polishing
with a marine chrome-and-stainless polish will maintain
and extend the life of these parts. In salt water areas,
rinse all hardware with fresh water and apply a light coat-
ing of protective oil to enhance the appearance after
each use.
2008 MasterCraft Owners Manual Page 12-1
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