Owner`s manual
3.
You
should now have antifreeze in sea water pump, hoses, heat exchanger and exhaust
system.
4. If aqua-lift or pot type muffler is used, it is recommended to drain prior to pumping anti-
freeze thru system and afterwards to prevent coolant from backing up into the engine.
SEA
WATER COOLING SYSTEM: Model M-15
OPTION
#1
1 .
Open
the cylinder block drain cock on the side of the block where hose from water pump
enters, and drain.
2. Loosen water pump cover
plate, allowing pump to drain, lubricate and replace cover.
3. Remove drain plug or rear bottom of exhaust manifold, and drain.
4.
When
boat is out of water, inlet lines to pump and thermostat will drain. Close sea cock
valve when completed for storage.
5. If aqua-lift or can type muffler is used, it
is
recommended to drain muffler and lines of water.
OPTION
#2
(With engine at operating temperature and stopped)
1.
Shut off sea cock valve.
2.
Remove
hose at sea cock. Let water drain from hose. Place inlet hose into container of
an-
tifreeze (with decompression lever on). Crank engine over at
10
second intervals until
an-
tifreeze comes out exhaust outlet.
3.
If aqua-lift or
can
type muffler is used, drain prior to pumping antifreeze thru system
and
afterwards to prevent coolant from backing up into the engine.
4.
You
may wish to do option
-1
prior to
-2
to insure all water is out of engine and exhaust
system.
5.
Replace hose to sea cock when complete.
Be
sure sea valve is closed.
6. Antifreeze will aid in coating inside of the engine, reducing rusting.
TO
DRAIN
FRESH
WATER COOLING SYSTEM: All Models Except M-15
1.
Remove pressure cap from manifold. (when engine is cool)
2.
Open
drain cock located above oil filter to drain engine block and head cylinder.
3.
Open
the in-line drain petcock located below the alternator. This will drain the manifold, heat
exchanger and engine fresh water pump.
4.
Remove
1/8" pipe plug at lower rear of manifold, to drain manifold separately.
5.
Close
all drain valves and petcocks when draining has been completed.
6. If antifreeze solution is used, it is not necessary to drain the system each year, providing
you
have
the correct mixture to prevent freezing during winter storage.
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