60
S08 MAINTENANCE
FUEL SYSTEM
DANGER !
Stop the engine and let it cool down before refuelling or
carrying out any operation on the fuel system.
CAUTION !
Fuel is flammable and can be dangerous. Fuel spilled on
hot surfaces or near sparks can ignite. Do not step onto
the injection piping. Take care to always keep them in
good condition.
WARNING !
Total cleanliness must be guaranteed when working on
the fuel system. No impurities should enter the injection
system. Make sure not to spill fuel on nearby hoses.
NOTE !
Any work on the fuel injection system must be carried
out by a authorized Nanni technician. Check regularly the
condition of the components of the fuel system (hoses,
filter, clamps, etc). When a clamp is removed, replace it
by a new one, always in stainless steel.
WARNING !
The fuel feed pump is an extremely precise unit. Water
entry in the fuel system will cause major failure to the
injection pump and to the whole fuel system.
DRAIN WATER IN FUEL PREFILTER
The fuel prefilter is an optional extra not in the scope
of supply of the engine. The model of prefilter may vary
according to the boat.
NOTE !
Drain the water out of the prefilter several hours after the
engine has been stopped (when completely cold).
1. Close the fuel butterfly (control) valve on the fuel tank.
2. Place a suitable container under the fuel prefilter. Get
floorcloths at hand to mop up any fuel which may
spill. Drain water and remove impurities in opening the
bottom plug.
3. Tighten the plug once the water has been drained.
4. Check the fuel filter element, change it if necessary.
5. Open the fuel butterfly (control) valve.
6. Bleed the fuel system (see in the following paragraphs).
7. Start the engine and check for leaks.
To Next Page
