Ford Sierra

1982-1993 of release

Repair and operation of the car

Ford Siyerra
+ 1.2. Identification of the car
+ 2. Maintenance
+ 3. General data
- 4. Engines
   - 4.1. Petrol engines
      + 4.1.1. Technical characteristics
      4.1.2. Adjustment of gaps of valves
      + 4.1.3. System of ignition
      - 4.1.4. Fuel system
         - The Ford carburetor with the changeable section of the diffuser
   Removal and installation of the carburetor
   Dismantling, check and assembly of the carburetor
   Adjustment of speed of idling of the engine and contents WITH
   Adjustment of the starting arrangement
   Adjustment of a cable of a butterfly valve
   Removal and installation of a needle shaft
   Diaphragm of the vacuum regulator
         + Weber 32/36 DGAV carburetor
      + 4.1.5. The repair which is not demanding removal of the engine
      4.1.6. Removal and installation of the engine
      4.1.7. Dismantling of the engine
      4.1.8. Identification of the interacting parts
      4.1.9. Assembly of the engine
      4.1.10. Replacement of pistons
      4.1.11. Removal and installation of an intermediate shaft
      4.1.12. System of gas distribution
      4.1.13. Lubrication system
      + 4.1.14. Cooling system
      4.1.15. Suspension bracket of the power unit
      4.1.16. System of production of the fulfilled gases
   + 4.2. Diesel engine
+ 5. Coupling
+ 6. Transmissions
+ 7. Driveshaft and back bridge
+ 8. Steering
+ 9. Suspension brackets
+ 10. Brake system
+ 11. Body
+ 12. Electric equipment

a773976c Dismantling, check and assembly of the carburetor


Ford carburetor elements

1 – carburetor cover,
2 – mobile gate of the diffuser,
3 – the dosing conic needle,
4 – holder of the main fuel jet,
5 – float,
6 – valve needle,
7 – axis of a butterfly valve,
8 – diaphragm of the regulator of the mobile gate,
9 – elements of the starting arrangement,
10 – accelerating pump,
11 – the screw of adjustment of the shunting stream,
12 – screw of adjustment of composition of mix,
13 – screw of adjustment of speed of idling


1. To uncover the carburetor, unscrewing seven bolts of its fastening (Torx T20 bolts) and to remove laying of a cover.
2. To merge fuel from the float-operated camera.
3. To unscrew four screws of fastening of the holder of the main fuel jet, to extend the mobile gate of the diffuser back and to take the holder of the main fuel jet.


Not to take out the conic needle interacting with the main fuel jet. In case of its damage it is necessary to replace all carburetor.

4. To take the unidirectional valve of the accelerating pump.
5. To take a float and the needle valve.
6. To remove a safety casing and to unscrew the screw of adjustment of composition of mix.
7. To unscrew screws of fastening of a cover of the vacuum regulator, to uncover, a spring, its emphasis and to take a diaphragm.
8. To uncover the accelerating pump, to take a spring and a diaphragm.


1. To wash up carburetor components (to wash diaphragms in spirit solution).
2. To blow compressed air all openings and jets.
3. To check a condition of the needle valve, a float, diaphragms, the holder of the main fuel jet, an axis of the throttle valve.
4. To check a condition of a conic needle and possible ovality of jets.
5. To check correctness of functioning of the spring establishing the provision of a needle.

Assembly of the carburetor

1. To insert a diaphragm of the accelerating pump, its spring and a cover (the party with laying of a diaphragm in the direction of the carburetor case).
2. To insert elements of strengthening of a diaphragm, and also its springing adjusting ring.
3. To insert a diaphragm. The vacuum opening in the case of the carburetor has to be opposite to an opening in the case of the vacuum regulator.
4. To insert a spring and a cover of the regulator.
5. To screw up the screw of adjustment of composition of mix against the stop and to unscrew it on three turns. This initial situation for the correct adjustment.
6. To insert a float and its needle valve.
7. To insert a ball of the valve of the accelerating pump and to place its loading in channel of the case.
8. To hold the mobile gate of the diffuser in the provision of the maximum opening and to insert new laying, and also knot of the main fuel jet.
9. To establish it thus concerning the carburetor case that its flange was at height of a surface of installation of laying.
10. To establish new laying of a cover and a cover the carburetor