Yanmar 8LV320 Operation Manual page 61

1
1 - Condensed Water Drain Plug
Figure 3
In cold temperatures or before long term storage,
be sure to drain the seawater from the seawater
cooling system.
WARNING
• Drain the seawater from the seawater cooling
system after the engine has cooled down. Be
careful to avoid burns.
• If seawater is left inside, it may freeze and
damage parts of the cooling system (heat
exchanger, seawater pump, etc.) when
ambient temperature is below 32 °F (0 °C).
1. Loosen the seawater drain plug and drain off
the seawater inside the engine. If no liquid
comes from the drain plug, it may be necessary
to use a stiff wire to remove any debris to allow
drainage.
2. Loosen the 5 bolts attaching the side cover of
the seawater pump, remove the cover and drain
the water from inside. Retighten the bolts when
finished.
3. Close the drain plug.
8LV Series Operation Manual
Do not drain the freshwater/coolant in the cold
season or before long-term storage. If LLC (Long
Life Coolant) has not been added to the cooling
freshwater, be sure to add LLC or drain off the
freshwater from the cooling system daily after use.
If the freshwater without LLC is not removed, it may
freeze and damage parts of the cooling water
system (heat exchanger, cylinder block, cylinder
head, etc.) when ambient temperature is below
0 °C (32 °F).
037420-00X00
When draining the freshwater:
• Open the freshwater drain cocks (2 positions) and
drain the freshwater from inside the engine.
• Close the drain cocks after draining the
freshwater.
Carry out the following periodic inspection before
placing the engine in storage:
1. Clean the outside of the engine wiping off any
dust or oil.
2. To prevent condensation inside the fuel tank,
either drain off the fuel or fill the tank.
3. Cover the turbo-charger, exhaust pipe, etc. with
vinyl sheets and seal them to prevent moisture
from entering.
4. Drain bilge in the hull bottom completely. Water
may leak into the boat when it is moored, and
whenever possible it should be hauled out,
covered and blocked.
5. Waterproof the engine room to prevent rain and
seawater from entering.
During long-term storage, charge the battery once
a month to compensate for the battery's
self-discharge.
When storing an engine for a long time, run the
engine periodically according to the following
procedure to prevent rust inside the engine:
• Change the engine oil and the filters before
running the engine.
• Supply fuel if the fuel in the fuel tank was
removed, and bleed the fuel system of air.
• Confirm that there is the coolant in the engine.
• Operate the engine at the low idling speed for
about 5 minutes (if possible, once a month).
LONG-TERM STORAGE
NOTICE
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