E30 series BMW 3

since 1983-1994 of release

Repair and car operation



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



6.2. Specifications

GENERAL INFORMATION

Carburetor (Solex 2B4 type)

Main jet:
  – 1st chamber
Х120
  – 2nd chamber
Х90
Jet of the air proof-reader:
  – 1st chamber
135
  – 2nd chamber
75
Diameter of a big diffuzor:
  – 1st chamber
24 mm
  – 2nd chamber
28 mm
Air jet of idling:
  – 1st chamber
50/120
  – 2nd chamber
40/125
Diameter of the needle valve of the poplavkovy chamber
2,0 mm
Gap of an air zaslonka
4–5,5 mm
Preliminary tightness of a spring of the sensor of an angle of rotation of a butterfly valve
22-24 mm
The control size for float installation:
  – 1st poplavkovy chamber
27-28 mm
  – 2nd chamber
29-31 mm

Carburetor (Solex 2BE type)

Main jet:
  – 1st chamber
Х120
  – 2nd chamber
Х110
Jet of the air proof-reader:
  – 1st chamber
140
  – 2nd chamber
70
Diameter of a big diffuzor:
  – 1st chamber
24 mm
  – 2nd chamber
28 mm
Fuel jet of idling:
  – 1st chamber
47,5
Air jet of idling:
  – 2nd chamber
180
Diameter of the needle valve of the poplavkovy chamber
2,0 mm
Gap of an air zaslonka
4–5,5 mm
Resistance of a winding of the sensor of an angle of rotation of a butterfly valve
0,97-1,63 Ohm
Resistance of the sensor of temperature of sucked-in air:
  – at-10 ° With
8200-10500 Ohm
  – at-20 ° With
2200-2700 Ohm
  – at 80 ° With
300-360 Ohm
The control size for float installation:
  – 1st poplavkovy chamber
27-28 mm
  – 2nd poplavkovy chamber
29-31 mm
Control pressure of fuel (carburetor engine, idling)
0,1-0,3 kgfs/cm2
The systems of injection given for check
Pressure of fuel, kgf/cm2:
  – 316i, B16 M40/engine
3,0 (±0,06)
  – 318i, B18 M10/engine
2,5-3,0
  – 318i, B18 M40/engine
3,0 (±0,06)
  – 320i, the B20 M20/engine (with system of injection of L-Jetronic)
2,5-3,0
  – 320i, the B20 M20/engine (with system of injection of Motronic)
2,5 (±0,05)
  – 325i, B25 M20/engine
3,0 (±0,05)
Pressure in fuel system after an engine stop
2,1 kgfs/cm2
The pressure of fuel developed by the pump
6,3-6,9 kgfs/cm2
Pressure of fuel in the pump after an engine stop
5,5 kgfs/cm2
Pressure of fuel of the pump of pumping
0,28-0,35 kgfs/cm2
Resistance of nozzles
14,5-17,5 Ohm
Free wheeling of a cable of a butterfly valve
1,0 mm

Inhaling moments (N of m)

Carburetor fastening
10
Pump fastening
12
Bolts and nuts of a throttle branch pipe
19-28