81
FILLING COOLANT
This procedure applies when the cooling system has
been drained and needs to be filled with a large amount
of coolant.
Special tool required
Number, Designation
Illustration
2 443 679
Coolant pump
WARNING !
Use protective gloves as coolant can cause irritation if
it comes in contact with the skin. Hot coolant can also
cause scalding.
IMPORTANT !
Mix the coolant as specified in the section headed Cool
-
ant. Never fill a hot engine with a large amount of cold
coolant. There is a high risk of cracks forming in the
cylinder block and cylinder heads Do not start the en-
gine until the correct coolant level has been obtained. If
the engine is started with an insufficient coolant level, it
can damage the coolant pump shaft seal, which leads to
coolant leakage.
S08
MAINTENANCE
1. Open the expansion tank cap.
2. Connect the coolant pump to the filler nipple in the
cylinder block.
3. Connect the pump’s two cable terminals to the bat-
tery’s negative and positive terminal. Make sure that the
filling starts. If the filling does not start: Change the po
-
sition of the cable terminals.
4. Start the engine and run it at idling for 15 minutes.
Above: filler nipple in the cylinder block (behind the heat
exchanger).
IMPORTANT !
It is very important that the engine is idling. Engine over-
speed could damage the coolant pump shaft seal, which
leads to coolant leakage.
5. Switch off the engine and fill with coolant to the max
-
imum level through the expansion tank.
Air pockets may still be left in the cooling system. These
will disappear after the engine has been operated for a
period of time. Therefore, the coolant may need topping
up at a later stage.
Finishing operations
1. Open the sea cock on the sea water inlet.
2. Start the engine and check that there are no leaks.
3. Check the coolant level and top up if necessary via the
expansion tank.
Summary of Contents for N16.1000 CR3
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Page 34: ...34 S05 COMPONENTS ENGINE VIEWS N16 CR3...
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Page 48: ...48 S06 INSTRUMENTATION SYSTEM LAYOUT INCLUDING OPTIONS...
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