Monterey Boats Sport Yacht 330, Owner'S Manual

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330 SPORT YACHT
Chapter 13:
ROUTINE MAINTENANCE
13.1 Exterior Hull and Deck
Hull Cleaning-Below The Water Line
When the boat is removed from the water, clean
the outer bottom surface immediately. Algae,
grass, dirt and other marine growth is easier to
remove while the hull is still wet. Use a pres-
sure cleaner or a hard bristle brush to clean the
surface.
Bottom Painting
Your Monterey hull is manufactured using state-of-
the-art materials and processes. A layer of super
tough, Ashland “AME” Resin with high density and
superior adhesion properties provides an excep-
tionally effective barrier to osmotic blistering.
Osmosis is caused by a chemical reaction between
water and substances in the hull laminate below
the waterline. If water breaches the exterior
gelcoat and barrier layer, it can react with the
chemical components in the laminate creating
acidic substances. These substances create pres-
sure behind the gelcoat which causes blisters.
An epoxy barrier coating such as the Interlux
Interprotect® system properly applied to the hull
before bottom paint will help prevent this problem.
A barrier coating also provides an excellent base
coat for the bottom paint.
Even though the hull on your Monterey is built
with a layer of Ashland “AME” blister resistant
resin, we recommend that additional protection
from marine growth and pollution be provided
by a barrier coating system and antifouling paint
if the boat is to be left in the water for over 30
days. This is extremely important as pollution
and marine growth can cause osmosis and dam-
age fi berglass hulls.
SANDBLASTING THE HULL BOTTOM WILL
DAMAGE THE FIBERGLASS. USE A FIBERGLASS
WAX REMOVER AND SAND TO SCUFF THE
GELCOAT SURFACE. THE INSTRUCTIONS AND
RECOMMENDATIONS OF THE BARRIER COATING
AND ANTIFOULING PAINT MANUFACTURERS
SHOULD BE FOLLOWED EXACTLY.
BARRIER COATINGS AND BOTTOM PAINT SHOULD
BE APPLIED ONLY BY QUALIFIED MARINE
PROFESSIONALS IN A BOAT YARD OR DEALERSHIP
THAT SPECIALIZES IN THEIR APPLICATION. USE
ONLY STANDARD, HIGH QUALITY ANTIFOULING
PAINTS AND BARRIER COATINGS FROM NAME
BRAND MANUFACTURES SUCH AS INTERLUX
AND PETTIT.
DO NOT ALLOW THE HULL ANTIFOULING PAINT TO
CONTACT THE OUTDRIVE. MOST ANTIFOULING
PAINTS DESIGNED FOR HULL BOTTOMS CONTAIN
COPPER AND CAN CAUSE SEVERE GALVANIC
CORROSION DAMAGE TO THE OUTDRIVE UNIT.
USE ONLY ANTIFOULING PAINT DESIGNED FOR
OUTDRIVES AND OUTBOARD MOTORS. ALWAYS
LEAVE A ONE INCH BARRIER BETWEEN THE HULL
BOTTOM PAINT AND OUTDRIVE.
Most bottom paints require some maintenance.
Proper maintenance is especially important when
the boat is in saltwater and not used for extended
periods or after dry storage. If the hull bottom
has been painted with antifouling paint, contact
your dealer for the recommended maintenance
procedures.
Sacrifi cial Anodes
Sacrifi cial zinc anodes are installed on the inboard
engines’ freshwater cooling system, outdrives and
on the transom. The transom zinc is connected
to the bonding system and protects the metal
thru-hull fi ttings and other underwater hardware
that is bonded.
The anodes are less noble than copper based
alloys, aluminum and stainless steel. They will
deteriorate fi rst, protecting the more noble engine
and underwater hardware against galvanic cor-
rosion. Anodes should be checked monthly and
changed when they are 75% of their original size.
When replacing the anodes, make sure the contact
surfaces are clean, shiny metal and free of paint
and corrosion. Never paint over the anode. The
bonding system should be inspected by a quali-
fi ed marine electrician once a year to make sure
all connections are sound and there is continuity
throughout the system.