3-39
G1/3
G1/4
4
4
4
4
G1/1
1
G1/2
2
3
G OCCASIONAL MAINTENANCE
G1 FUEL SYSTEM
BLEED
These operations are only to be carried out in the following cases:
- A component of the fuel system replaced or drained.
- Make sure that the fuel level in the tank is high enough and turn the ignition key to
notch 2.
- Open the left-hand covers.
BLEEDING THE FUEL FILTER
- Loosen the bleed screw 1 (Fig. G1/1).
- Open the valve 2 (Fig. G1/2).
- Activate the primer bulb 3 (Fig. G1/3) until the diesel fuel flows out, free from air, from
the bleed screw.
- Tighten the bleed screw 1 (Fig. G1/1) while the diesel fuel is flowing out.
BLEEDING THE INJECTORS
- Loosen the pipe connectors 3 (Fig. G1/4) at one of the injectors.
- Activate the starter until the diesel fuel flows out, free of air, from the pipe connectors
4 (Fig. G1/4).
- Retighten these connectors while the diesel fuel is flowing out.
Do not engage the starter motor continuously for more than 30 seconds and allow it to
cool for 2 minutes between unsuccessful attempts.
- The engine is now ready to be started.
- Run the engine at idle for 5 minutes immediately after bleeding the fuel feed circuit, in
order to ensure that the injection pump has been bled thoroughly.
NOTE: If the engine runs correctly for a short time then stops or runs erratically, check for
possible leaks in the low pressure circuit. If in doubt, contact your dealer.
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