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The sea-water system. Close the sea-water cock.
Loosen both the hose connections from the sea-water
pump and seawater filter (optional) at the reverse
gear/S-drive and point them downwards so that the
water runs out.
Remove the plug (1) in the heat exchanger's pipe.
Turn the engine so that all the water is pressed out of
the sea-water pump. Connect the hoses and tighten
the plug in the heat exchanger's pipe before you
leave the boat.
Idle engine.
In order to prevent damage to the engine caused by
corrosion, the engine should be run warm at least
every 14 days as long as the boat is in the water. If
the boat is not to be used for more than 90 days,
long-term inhibiting should be carried out.
General engine information
Coolant
The coolant system is to be filled with a corrosion-
protective anti-freeze mixture, 50% anti-freeze and
50% fresh water. Alternatively a mixture of fresh
water with about 1 litre corrosion protective additive.
(Volvo Penta accessory.)
If there is a risk of freezing, an anti-freeze mixture
must be filled or the system must be drained after
each use. Regarding draining of fresh water and sea
water system, see “Shoutdown Procedure”.
Fresh water system should be drained and flushed
once per year. (See lay-up procedure.)
Filling the system
1. Loosen the venting plug in the water pipe (1) or
the plug (2) at the heat exhanger and remove the
filler cap.
2. Fill with coolant until the level reaches the filler pipe.
3. Tighten the venting plug and refit the filler cap.
4. Start the engine and let it run until it reaches
normal operating temperature. Stop the engine and
let it cool.
5. Remove the filler cap and top-up with coolant until
the level reaches the filler pipe.
WARNING: Closed fresh water system is
under pressure. If pressure cap is removed
when engine is at operating temperature, turn
cap to first stop and allow pressure to escape
before completely removing cap.
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