E30 BMW + 1. Maintenance instruction + 2. Maintenance + 3. Engine + 4. Cooling system + 5. Heating and ventilation - 6. Fuel system 6.2. Specifications 6.3. Check of system of injection 6.4. Measuring instrument of a stream of air 6.5. Throttle branch pipe 6.6. Regulator of pressure of fuel 6.7. Nozzle of start-up of the cold engine and thermotimer 6.8. Check and replacement of nozzles 6.9. Air proof-reader of idling 6.10. Order of a decompression of fuel system 6.11. Check of pressure of fuel 6.12. The fuel pump, the pump of pumping and the fuel level sensor in a tank 6.13. Gasoline pipe lines and union 6.14. Fuel tank 6.15. Air filter 6.16. Cable of a drive of a butterfly valve 6.17. Carburetor + 7. Exhaust system + 8. Transmissions + 9. Coupling + 10. Brake system + 11. Running gear + 12. Body + 13. Electric equipment + 14. Good advice
|
Fuel pump of early system of injection of Motronic
|
1. Clamping washer
2. Fuel level sensor
3. Laying
4, 11. Hose
5. Holder
6. Pump
7. Filter
8. Block
9. Control valve
10. Suppressor of pulsations |
Fuel pump (the carburetor engine)
PERFORMANCE ORDER |
|
1. Disconnect the battery from weight, disconnect from the pump hoses, unscrew 2 nuts of fastening of the pump. |
2. Remove the pump, if necessary displace the pump in easy blow on wooden whetstone. |
3. Remove 2 laying. |
4. The pump not folding and to repair is not subject. Installation is carried out upside-down. Replace laying from both parties of a pro-rate of the pump, without breaking their thickness. |
|
Fuel pump (the injector engine)
Prevention
In system of injection of L-Jetronic the pump of pumping is mounted near a tank, in Motronic system this pump is mounted in a fuel tank. The fuel level sensor is mounted in a fuel tank on the pump of pumping or on the fuel pump.
PERFORMANCE ORDER |
Execute a decompression and disconnect the battery from weight. |
|
The fuel pump mounted out of a tank
PERFORMANCE ORDER |
1. Lift the car. |
|
2. Remove a cover and disconnect from the wire pump. |
3. Press clips fuel hoses of the pump and disconnect them on the pump. |
4. Unscrew screws of fastening and remove the pump. Installation is carried out upside-down. |
|
The fuel pump mounted in a tank (or the pumping pump)
PERFORMANCE ORDER |
|
1. Unscrew screws and remove the hatch (is under a back seat or under a rug in a luggage carrier, depending on model). |
|
2. Disconnect sockets of the pump of pumping (1) and the fuel level sensor (2) in early system of injection of Motronic. |
|
3. For a detachment of the socket hook a bracket so that dredging was combined with a groove on a latch and dissolve parts of the socket. |
|
4. On a part of cars to take the pump with the sensor it is necessary to turn this knot counter-clockwise. |
|
5. On a part of cars the pump knot with the sensor fastens these nuts. |
|
|
6. In early system of injection of Motronic at first get the fuel level sensor, then get the pump, without disconnecting hoses. |
7. On early models unscrew fastening screws, take away brackets and remove the pumping pump. |
8. Installation is carried out upside-down. If necessary replace laying between the pump and a fuel tank. |
|
Fuel level sensor
Fuel level sensor conclusions in late system Motronic
|
1. Mass of the sensor
2. To a control lamp
3. Sensor
4. Mass of the pump
5. Pump |
PERFORMANCE ORDER |
1. Remove the pump with the sensor. |
|
2. In system of injection of L-Jetronic and in early system Motronic check resistance between the specified conclusions according to the table. Of late system Motronic be convinced that resistance between conclusions 1 and 3 decreases at a raising of a plunzher of the sensor. |
3. If resistance differs, the sensor replace. |
4. Installation is carried out upside-down. |
|
Fuel level sensor conclusions
CONCLUSIONS
|
PROVISION OF THE FLOAT OF THE SENSOR
|
RESISTANCE, OHM
|
G and 31
|
Slow movement from the situation EMPTY to the situation FULL (full) EMPTY FULL
|
Slowly decreases 71,7 (± 2,3) 3,2 (±0,7)
|
W and 31
|
EMPTY (fire of a control lamp of level of fuel)
|
Gap
|
|
|