Attention! When working with fuel system components, observe fire safety precautions.
Fuel tank diagram. 1 - Fuel tank ventilation valve, 2 - Limiting valve, 3 - Overflow and fuel cut-off valve in case of tipping over, 4 - Overflow valve ball, 5 - Tank ventilation nipple when refueling, 6 - Nipple for connection to the fuel vapor recovery system, A - Tank ventilation hose when refueling, B - Free volume for expansion, C - Filler neck with check valve, D - Useful filling volume.
Description
1. Fuel tank ventilation valve. When the fuel vapor removal lines from the tank to the fuel vapor recovery system are blocked, the valve releases excess pressure when the engine is off or eliminates the vacuum in the tank when the engine is running. This prevents deformation of the tank.
2. Restrictor valve: This valve prevents the tank from being filled with leaded petrol or diesel fuel.
3. Overflow and fuel cut-off valve in case of overturning. Overflow of the tank is prevented by blocking the pressure relief line with a valve ball. Filling the tank occurs in such a way that there is free volume in it for thermal expansion of the fuel. In case of overturning of the car, the ball closes the pressure relief line and prevents fuel from leaking through the fuel vapor accumulator.
4. The fuel tank has a sealed filler cap.
5. The filler neck of the tank for using unleaded gasoline has the following features: - Smaller size of the neck, into which the nozzle used for dispensing leaded gasoline cannot be installed.
Valve (2) closing the tank neck when overfilled (preventing fuel spillage during refueling).
Fuel drain
1. Remove the fuel pump/fuel level sensor assembly access cover.
2. Disconnect the fuel supply hose quick connector (green color).
3. Connect a process hose of sufficient length to the fitting of the removed hose and insert it into a container for collecting fuel.
4. To avoid discharging the battery, connect it to a charger.
5. Remove the fuel pump relay (in the fuse box in the engine compartment).
6. Install a jumper across terminals 3 and 5 of the relay base to start the fuel pump.
7. After draining the fuel, remove the jumper and reinstall the fuel pump relay.
Removal the fuel tank
1. Disconnect the battery.
2. Place the vehicle on a lift.
3. Disconnect the connector (2) and hoses of the pump/fuel level sensor unit.
4. Raise the vehicle.
5. Disconnect the auxiliary muffler from the neutralizer.
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6. Hang the exhaust pipe on the wire.
7. Disconnect the fuel return hose from the tank.
8. Remove the heat shield from the tank and parking brake cables.
9. Loosen the parking brake control lever and cables (3) and (4). The cable tension is adjusted from inside the vehicle. Carefully remove the plastic stoppers (6).
10. Disconnect the overfill protection tube from the tank.
11. Disconnect the filler neck from the tank.
12. Release the parking brake cables from the clamps located under the tank.
13. Place a jack under the tank.
14. Unscrew the four tank mounting bolts.
15. Tilt the tank to the right and up, remove the tank.
Installing a fuel tank
The fuel tank has three oval holes for mounting bolts (two on the side and one on the back) to adjust the position of the tank relative to the subframe.
The tank is installed in the reverse order of removal. Avoid pinching or bending the fuel system tubes and/or hoses. Install heat shields correctly.
- Tightening torque of fuel tank mounting bolts: 21 Nm