Evinrude 4906B 4HP 1969 Owner's Manual page 386

If barnacles or other crustaceans
attached themselves
will be required to bring the bottom back to
a satisfactory condition.
put the boat into a body of fresh water and
allow it to remain for a
percentage of the growth can be removed in
this manner. If this remedy is not possible,
wash the bottom
pressure fresh water source and use a scrap-
er. Small particles
hold fast. These
sandpaper.
10-6 SUBMERGED
A submerged engine is always the result
of an unforeseen accident.
is recovered, special care and service pro-
cedures MUST be closely followed in order
to return the unit to satisfactory
mance.
NEVER, again we say NEVER allow an
engine that has been submerged
more than a couple hours before following
the procedures outlined in this section
making ever v effort to get it running.
o,'·.!
delav will result in serious internal
If all efforts fail and the engine cannot he
started after the following procedures
been performed, the engine should be disas-
sembled, cleaned, assembled, using new gas-
kets, seals, and Oer irizs , and then ·st2.rted as
soon as possible.
Submerged engine treatment
into three unique problem areas:
sion in salt water; submerged
running; and a submerged
water , including special instructions.
The most critical of these three circum-
stances is the engine
water, with submersion
close second.
a
Crankshaft from submerged
recovered from salt wcter,
crank was severely damaged
to the hull, extra work
First, if practical,
ew days. A large
f
thoroughly with a high-
of hard shell may still
can be removed
ENGINE SERVICE
Once the engine
perfor-
to stand
'-_.' ',.
damage.
is divided
submer-
engine while
engine in fresh
submerged in salt
while running
two-cylinder engine
In a very short time
by
corrosion.
have
Rod bearing and cages badly damaged
with
corrosion.
Salt Water Submersion
NEVER
after it has been recovered.
only result in additional
ed and the
increased
submerged
MUST be disassembled,
sembled
seals. The corrosive
car; only be elirrlnated
being properly performed.
and
Such
have
a
the Cleaner
water after it has been SUbmerged.
SUBMERGED ENGINE
attempt to start
This action will
parts being damag-
cost of restoring
considerably. If the engine was
in salt water the complete
cleaned,
with new gaskets,
effect
by the complete
to restore an engine recovered
10-5
by salt water
the engine
the engine
unit
and as-
O-rings, and
of salt water
job
[rest:
from