5
Fuel system purge
- Check the fuel level in the tank.
- Open the fuel cock, unscrew the purge screw lo-
cated on the upper part of the filter and pump the sys-
tem using the incorporated pump. When no more air
bubbles appear, tighten the screw. In the event that
the injection system is not fully primed, carry out the
following procedure:
- Unscrew the No. 1 injector fuel pipe and turn the
engine on the starter until diesel fuel appears. Re-
tighten the nut and follow out the same procedure for
the other injectors.
- Re-start the engine and check for leaks.
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DANGER : Do not smoke, approach with a naked
flame or cause a spark. Wipe up any spilt fuel.
COOLING SYSTEM
This is made up of two different systems: the sealed
cooling system and the sea water cooling system.
Sealed cooling system
This is made up of a pump driven by the crankshaft
via two V shaped belts, a water temperature heat
exchanger, an oil temperature heat exchanger inte-
grated unto the engine block and a thermostat.
Seawater cooling system
This is made up of a pump, a clear - salt water heat
exchanger, supercharger air refrigerant, power steer-
ing oil refrigerant (version Stern drive), reversing gear
oil exchanger and an exhaust elbow.
Coolant
Recommendations for initial start up.
- Check that the drain plug located beneath the turbo,
open the breather plug on the top of the turbo liner.
- Create a diluted 50% antifreeze and 50% clear wa-
ter antifreeze mixture. The quantity required is given
in the table of technical specifications.
- Pour the mixture into the filler hole, close the
breather plug on the top of the turbo liner when the
liquid can be seen and continue filling up to the maxi-
mum. Possible top-ups should be made when the
engine is cold and only with clear water. Re-start the
engine and top-up to correct level. Check for leaks.
- Every two years at the beginning of the season,
completely drain the cooling system, flush out using
clear water and re-fill in accordance with the instruc-
tions provided above,. (See SILVERWAKE guarantee
terms.)
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DANGER : Always fill the cooling system when
the engine is off and cold – Do not smoke or ap-
proach with a naked flame.
- Keep away from revolving parts when the engine is
running
.
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CAUTION : Never use undiluted antifreeze. The
use of additives and other type of coolant can cause
insulating deposits to be formed, and engine over-
heating.
Hot water connection
You can install an onboard hot water system by con-
necting from the interior clear water system to the
engine (Ask your NANNIDIESEL agent).
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CAUTION: Before staring the engine, make sure
that the sea water inlet is open as it only needs the
pump to run dry for several seconds in order to cause
deterioration to the water pump rotor.
After cleaning the sea water filter, carefully close the
cover in order to avoid the water pump sucking in air.
ELECTRICAL EQUIPMENT
5. ENGINE OPERATION
RUNNING
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DANGER : Make sure that the engine casing is
correctly closed and install all the protective
items before starting the engine.
- Check the fuel level
- Open the diesel supply tap
- Open the sea water inlet valve
- Check engine and transmission oil levels
- Check the coolant level
- Close the battery isolation switch
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CAUTION: Turning the key to the contact position
when starting-up commences the process of pre-
heating inlet air to the engine which can continue
whilst running for approximately 6 minutes. Take
care not to let any part of the body come into contact
with the air pre-heating zone of the engine.
Inlet air pre-heating continues whilst the engine tem-
perature is less than 40°C.
Wiring positions /Color / Function
1 Red (+)12 volt battery
2 Violet D+ Alternator D+ Terminal
3 Grey Oil pressure sensor
4 Yellow Heating unit
5 Pink/Black Oil pressure switch
6 Yellow/Green Water temperature switch
7 Brown Starter
8 Orange/Blue Water temperature sensor
9 Green Water temperature indicator probe
10 Red/Yellow Engine stop solenoid power supply
11 Dark blue (-) engine speed indicator sensor
12 Dark blue (+) engine speed indicator sensor
13 Light blue Water contaminated diesel indicator
14 unused
15 Black (-) 12 volt battery
16 unused
