Evinrude 4906B 4HP 1969 Owner's Manual page 385

10-4 MAINTENANCE
One of the advantages
hull is the easy maintenance
quired, and the ability of the material
resist corrosion.
As an added protection
growth, the below the waterline
be painted with an anti-fouling
tom paint sold for use on a wooden or
fiberglass hull is NOT suitable.
of purchase, check
contains the chemical
for an aluminum surface.
clearly indicate the intended use is specific-
ally for aluminum.
If the aluminum hull does not have anti-
fouling paint but requires
move marine growth, one method is to rub
the hull with a gunny sack just as soon as
the boat is removed
while it is still wet.
sack is fairly effective
face of marine growth,
ceans (barnacles --for
attached themselves
the rubdown has been completed
should be washed with
water.
If the rubdown and wash was not accom-
plished immediately
moved from the water
allowed to dry, it will be necessary to cover
the hull with wet blankets,
other suitable material
Aluminum boat with the wooden seat removed
posing the Styrofoam blocks for flotation.
should be removed at least once each season and the
blocks thoroughly dried.
of an aluminum
program re-
against marine
area may
paint. Bot-
At the time
to be sure the paint
properties required
The label should
cleaning to re-
from the water and
The roughness of the
in cleaning the sur-
including crusta-
instance) that have
to the hull. As soon as
the hull
high-pressure fresh
after the boat was re-
and the hull was
gunny sacks or
and to continue
ex-
The seat
soaking the
loosened.
course, is to return the boat to the water, if
to
possible, and then too pull it out after it has
been allowed to soak.
If an aluminum
underwater
the hull and a leak develops, the only emer-
gency action possible is to make an attempt
to reduce the amount of water being taken
on by stuffing any type of available material
into the opening until the boat is returned to
shore. The aluminum
is
while it
must be performed
heliarc welding and other aluminum work.
Styrofoam blocks are installed under the
seats of all aluminum
blocks are designed for flotation
the boat from sinking even
with water.
seat should be removed and the foam allow-
ed to dry.
foam blocks in plastic bags prior to intalla-
tion to protect them from moisture and loss
of their flotation
be purchased
new blocks are obtained,
to enclose the block in some form of plastic
covering, then seal the package before in-
stalling it under the seat.
10-5 BELOW WATERLINE
A foul bottom can seriously affect
performance.
large and small, both powerboat
are constantly
tion of the hull below the waterline.
In areas where marine growth is preva-
lent, a coating of vinyl, anti-fouling
paint should
developed on the bottom, it can be removed
with a solution of muriatic acid applied with
a brush or swab and then rinsed with clear
water. ALWAYS
working with
EXTRA CARE
face and hands.
Therefore,
or if outside, keep your face on the wind-
ward side of the work.
Barnacles
their home on the bottom
have not been
paint. Actually
fiberglass hull, but can develop into a major
nuisance.
covering until the growth
An easy alternate
boat should strike
object resulting in damage
cannot
wet. Repair of a damaged hull
by a shop equipped for
boats.
if it should fill
Once each season, the wooden
Some manufacturers
ability. New blocks may
in a wide range of sizes.
make an attempt
SERVICE
is
This one reason why racers,
giving attention
be applied. If growth
use rubber gloves when
muriatic acid
to keep it away from your
The FUMES ARE
work in a well-ventilated
have a nasty habit of making
of boats which ~
treated with anti-fouling
they will not harm the
is
method, of
an
to
be reoaired
The foam
to prevent
enclose the
If
boat
and sail,
to the condi-
bottom
has
and TAKE
TOXIC.
area,