LAY-UP
AND
RECOMMISSIONING
LAY-UP
Many owners rely on their boatyards to prepare their craft,
including engines and generators, for lay-up during the off-
season or for long periods
of
inactivity. Others prefer to
accomplish lay-up preparation themselves.
The following procedures will allow you
to
perform your
own lay-up and recommissioning, or you may use them as a
check list for others.
These
procedures should afford your
engine protection during a lay-up and also help familiarize
you
with
the maintenance needs
of
your engine.
If
you have any questions regarding lay-up procedures, call
your
local servicing dealer; he will be more than willing to
provide assistance.
PROPELLER
SHAFT
COUPLING
The transmission and propeller half couplings should always
be opened up and the bolts removed when the boat
is
hauled
out
of
the water or moved from land to water, and during
storage in a cradle. The flexibility
of
the boat often puts a
severe strain on the propeller shaft
Or
coupling, or both, while
the boat
is
taken out or put
in
the water.
In
some
cases, the
shaft has actually been bent
by
these strains. This does
not
apply to small boats that are hauled out
of
the water when
not in use, unless they have been dry for a considerable
period
of
time.
FRESH
WATER
CODLING
SYSTEM
A 50-50 solution
of
antifreeze and distilled water
is
recom-
mended for use
in
the freshwater coaling system at all times.
This solution may require a higher concentration
of
antifreeze, depending on the area's winter climate.
Check
the
solution
to
make sure the antifreeze protection
is
adequate.
Should more antifreeze be needed, drain an appropriate
amount from the engine block and add a
more
concentrated
mixture.
Operate the engine to ensure a complete circulation
and mixture
of
the antifreeze concentration throughout the
cooling system. Now recheck the antifreeze solution's
strength.
LUBRICATION
SYSTEM
With the engine warm, drain all the engine oil from the oil
sump. Remove and replace the oil filter. (Place some paper
towels
and a plastic
bag
around the filter
to
catch the oil dur-
ing its removal.)
When
installing the new oil filter, be sure
to
apply a small
amount
of
oil on the rubber sealing gasket at the base
of
the
filter. Fill the
sump
with the correct amount
of
oil for your
engine model. (Refer to the
SPECIFICATIONS section
of
this
manual.) Usc an oil with an API specification
of
CF or CG4
or better. Run the engine and check for proper oil pressure
and make sure there are not leaks. Stop the engine, check oil
level and add oil as needed to bring level
to
dipstick full
mark.
32
A..
CAUTION:
00
not
leave
the
engine's
old
engine
oil
in
the
sump
over
the
lay-up
period.
Engine
oil
and
com-
bustion
deposits
combine
to
produce
hannful
chemicals
which
can
reduce
the
life
of
the
engine's
internal
parts.
FUEL
SYSTEM
Top
off
your fuel tanks with
No.2
diesel
fueL
Fuel additives
should be added at this time
to
control algae, and a fuel con-
ditioner such as STABIL. Care should be taken that the
addi-
tives used are compatible with the primary filter/water
separator used in the system. Change the element in
your
pri-
mary fuel filter/water separator,
if
the fuel system contains
one, and clean the separator sediment bowl.
Change the fuel filter elements on the engine and bleed the
system as needed.
Start the engine and allow
it
to run for 5-
10
minutes to make sure no air
is
left in the fuel system.
Check for any leaks that may have been created
in
the fuel
system during this servicing. correcting them as needed.
RAW
WATER
CIRCUIT
Close the through-hull fitting: Remove the raw water intake
hose from the fitting.
Place
the
end
of
this hose into
fl
5-gal-
Ion
bucket
of
clean fresh water. Before starting the engine,
check the zinc anode found
in
the heat exchanger on the
engine and clean or replace
it
as required. Clean the raw
water strainer,
if
one is installed in the inside
of
the hull.
Start the engine and allow the raw water
pump
to
draw fresh
water through the system.
When
the bucket
is
empty, stop the
engine and refill the bucket with an antifreeze solution
slightly stronger then needed for winter freeze protection
in
your area.
Start the engine again and allow all
of
this mixture
to
be
drawn through the raw water system.
Once
the bucket
is
empty, stop the engine. This antifreeze mixture should pro-
tect the raw water circuit from freezing during the winter lay-
up, as well as providing
corroSIOn protection.
Remove the impeller from your raw water pump
(:-;ome
antifreeze mixture will accompany
it,
so catch
it
in
a bucket).
Examine the impeller. Acquire replacement. if needed, and a
cover gasket.
Do
not replace the impeller (into the pump)
until recommissioning, but replace the
COver
and gasket.
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