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96
7 Winter storage procedure
5 Raw water cooling system
Close the sea cock.
•
Remove the lid of the water strainer.
•
If necessary, clean the raw water strain-
•
er.
Connect the raw water intake to a fresh
•
water (tap water) supply or a tank contain-
ing fresh water. Open the tap and allow
the engine to idle for at least 5 minutes to
remove any salt and contamination from
the raw water cooling system.
Make sure that there is a sufficient sup-
ply of water to prevent the engine from
overheating.
Stop the engine and close the sea cock.
•
The external water system must be pro-
•
tected in areas where the temperature
drops to below zero during the winter.
Pour 1 litre (1/4 gallon) of anti-freeze into
the water strainer and run the engine un-
til the anti-freeze has disappeared into
the cooling system.
t
ip
!
Combine flushing the raw water cir-
cuit with fresh water with running the
engine with the protective fuel mix-
ture, see Protective fuel mixture
Heat exchanger
Only clean the heat exchanger if this
is absolutely necessary, see page
.
Raw water pump
Check the impeller of the raw water
pump at least once every two years,
see page
.
VD00125
Summary of Contents for DT4.70
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