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
   - 3.1. Cars with petrol engines
      3.1.1. Masses and transfer numbers
      3.1.2. Operational liquids
      - 3.1.3. Changes in a car design from 1984 to 1986.
         3.1.3.1. Engine
         3.1.3.2. Head of the block of cylinders
         3.1.3.3. Block of cylinders of the engine
         3.1.3.4. Krivoshipno-shatunny mechanism
         3.1.3.5. Bent shaft
         3.1.3.6. System of gas distribution
         3.1.3.7. Engine mount
         3.1.3.8. Cooling system
         - 3.1.3.9. Carburetor
            3.1.3.9.1. With we change the Ford carburetor diffuser section
            3.1.3.9.2. Weber carburetors
            3.1.3.9.3. Pierburg carburetor
         3.1.3.10. System of injection of fuel
         3.1.3.11. System of ignition
         3.1.3.12. Coupling
         3.1.3.13. Mechanical four-speed transmission
         3.1.3.14. Mechanical five-speed transmission
         + 3.1.3.15. Automatic Ford A 4 LD transmission
         3.1.3.16. Power shaft and back bridge
         3.1.3.17. System of steering with the hydraulic booster
         3.1.3.18. Forward suspension bracket
         3.1.3.19. Back suspension bracket
         3.1.3.20. Brake system
         + 3.1.3.21. Electric equipment
         3.1.3.22. General data
      + 3.1.4. Changes in a car design from 1987 to 1989.
      + 3.1.5. Changes in a car design from 1990 to February, 1993.
   + 3.2. Cars with diesel engines
+ 4. Engines
+ 5. Coupling
+ 6. Transmissions
+ 7. Driveshaft and back bridge
+ 8. Steering
+ 9. Suspension brackets
+ 10. Brake system
+ 11. Body
+ 12. Electric equipment

3.1.3.9.3. Pierburg carburetor

GENERAL INFORMATION

Elements of the two-chamber Pierburg 85 HF carburetor

And – the case of a bimetallic spring,
In – a sealing ring,
With – a cover of the automatic starting arrangement,
D – vacuum regulator of a starting butterfly valve,
Е – vacuum regulator of the second camera,
F – screw of adjustment of speed of idling,
G – accelerating pump,

N – the valve of the enriching device of full loading,
J – shock-absorber (dash-pot) of the mechanism of opening of a butterfly valve of mix,
To – the carburetor case,
L – fuel supply union,
M – the main fuel jet of the I camera,
N – main fuel jet of the II camera,
About – a carburetor cover,
Р – idling jet

Measurement of a priotkryvaniye of the air gate of the Pierburg carburetor

Adjustment of speed of the accelerated idling of the Pierburg carburetor

The arrow showed a bolt of adjustment of the accelerated idling.

Adjustment of idling of the Pierburg carburetor

And – the screw of adjustment of speed,

In – the screw of adjustment of composition of mix

The engine 1,8 ^{of dm3} of the REB type is equipped with the two-chamber Pierburg 85 HF 9510 AB carburetor of independent management of butterfly valves of both cameras, with the automatic starting arrangement and the accelerating pump.

Adjustment of a priotkryvaniye of the starting air gate

PERFORMANCE ORDER

1. To hold a butterfly valve of mix in partially open situation and to turn a cam of the accelerated idling so that the bolt of adjustment of speed of the accelerated idling concerned the maximum level of a step disk.

2. By means of the probe or a drill with a diameter of 3 mm to measure gap width between an edge of the starting air gate and a wall of the camera of the carburetor (see rice. Measurement of a priotkryvaniye of the air gate of the Pierburg carburetor).

3. In case of need to adjust the necessary size of a gap by means of an adjusting bolt (a key for internal hexagons of 2 mm).

Adjustment of speed of the accelerated idling

PERFORMANCE ORDER

1. To bring the engine to normal working temperature.

2. To check and in case of need to adjust the speed of idling and maintenance WITH.

3. To kill the engine.

4. To remove the air filter.

5. To start the engine and to leave it idling.

6. To check whether adjusting signs on a cover of the starting arrangement and on the carburetor case are located against each other.

7. To establish the end of a bolt of adjustment of speed of the accelerated idling on the minimum level of a step disk, moving for this purpose the lever of a butterfly valve (in the direction of increase in opening), to respectively turn a step disk and to release the lever of a butterfly valve.

8. To check the speed of the accelerated idling.

9. In case of need to correct it by means of a bolt of adjustment of speed of the accelerated idling (see rice. Adjustment of speed of the accelerated idling of the Pierburg carburetor).

Idling adjustment

This adjustment is carried out on the engine which is warmed up up to the normal working temperature and the switched-off consumers of current.

PERFORMANCE ORDER

1. Before adjustment it is necessary to check tightness of vacuum pipelines.

2. To connect a tachometer, to check and in case of need to adjust idling speed, turning the screw (see rice. Adjustment of idling of the Pierburg carburetor).

3. To connect the analyzer of exhaust gases.

4. To bring engine speed to 3000 rpm and to hold it within about 30 seconds.

5. To release an accelerator pedal. Speed has to be determined at the previous level. Contents WITH originally will increase and 5–25 seconds later has to be stabilized.

6. 30 seconds later after installation of speed to determine content WITH.

7. In case of need to adjust contents WITH in exhaust gases by means of the screw (V) of composition of mix of idling.

Adjusting data of the Pierburg 85 HF 9510 AB carburetor

Diameter of the diffuser (1/2 camera)	23/26 mm
Main fuel jet (1/2 camera)	107,5/130
Fuel jet of idling	45
Air jet	115
Deviation of a starting butterfly valve	3 mm
Adjustment of a bimetallic spring of a starting butterfly valve	according to designations on a cover of the starting arrangement
Speed of the accelerated idling (a basic bolt at the minimum level of a disk)	830 ± 30 rpm
Idling speed	800 ± 20 rpm
Contents WITH	1,3%