General information about the carburetor. BMW the 5th E28/E34 series (from 1981 to 1993 of release)
Repair of BMW E28 and series E34 from 1981 to 1993
1. Cars of the BMW brand of 5-series
2. Engine
3. Cooling system
4. Power supply system
4.1. General information
4.2. Pressure removal in system of injection of fuel
4.3. Check of pressure of fuel / fuel pump
4.4. Removal and installation of the fuel pump, intermediate pump and fuel level sensor
4.5. Repair and replacement of fuel lines and connectors
4.6. Removal and installation of a fuel tank
4.7. General information about cleaning and repair of a fuel tank
4.8. Removal and air purifier installation
4.9. Check, adjustment and replacement of a cable of an accelerator
4.10. General information about the carburetor
4.11. Removal and carburetor installation
4.12. Cleaning and carburetor adjustment
4.13. General information about fuel injection
4.14. Systems of injection of fuel
4.15. Check of functioning of system of injection of fuel
4.16. Functioning check, removal and installation of a measuring instrument of a stream of air
4.17. Functioning check, removal and installation of the case of a throttle
4.18. Check of functioning and replacement of a regulator of pressure of fuel
4.19. Check of functioning and replacement of an injector of cold start and temperature switch
4.20. Check of functioning and replacement of fuel injectors
4.21. Functioning check, adjustment and replacement of the air valve of stabilization of idling
4.22. Search of malfunctions of system of injection of fuel
4.23. Diagnostics of malfunctions of a power supply system
5. Ignition system
6. Control systems of the engine and decrease in toxicity of the fulfilled gases
7. System of production of the fulfilled gases
8. Coupling
9. Manual box of gear shifting (RKPP) and automatic transmission (AT)
10. Transmission line
11. Steering and suspension bracket
12. Brake system
13. Body
14. Control body sizes
15. Heater and air conditioner
16. System of onboard electric equipment
17. Routine maintenance of the car
18. Size table and adjusting data
19. Schematic electric circuits
20. Governing bodies and operation receptions
21. System of onboard diagnostics - a principle of functioning and codes of malfunctions
 








4-10-obshhie-svedeniya-o-karbyuratore.html

4.10. General information about the carburetor

Early models are equipped with the Solex 2B4 carburetor, and later models are equipped with the Solex 2BE carburetor. Both carburetors are two-chamber with a falling stream. The first chamber copes mechanically an accelerator pedal, and the second has vacuum management.

Each chamber has the separate poplavkovy chamber, a float and the needle valve, the influences of braking intended for reduction and centrifugal forces.

On model 2В4 the air valve of the first step copes automatically (a bimetallic spring with electric heating) at engine warming up. Mix enrichment at warming up also is provided with the thermovalve operated depending on temperature of a cooler, and the thermooperated valve of an air stream.

On model 2 automatic control in parameters of the carburetor at warming up and normal working temperature of the engine is carried out by the electronic control unit. The control unit is located under the dashboard on the right side.


«on page back
4.9. Check, adjustment and replacement of a cable of an accelerator
on page forward»
4.11. Removal and carburetor installation