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 The sensor of impulses with Hall's converter To distribute ignitions Switchboard Remarks on operation Installation of a corner of an advancing of ignition Definition of malfunctions Removal and installation of the distributor of ignition
      + 4.1.4. Fuel system
      + 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

- To distribute ignitions


Bosch ignition distributor

1 – case,

2 – power shaft,

3 – the coil and a plate with motionless contacts,

4 – rotor,

5 – vacuum regulator,

6 – antidust casing,

7 – distributor rotor,

8 – distributor cover

The sensor of impulses with Hall's converter is located in the ignition distributor, replacing the classical breaker. Also are its part: motionless, so-called, magnetic partition and rotor. The magnetic partition is formed by the permanent magnet fixed on a motionless plate and also Hall's converter located opposite to a pole of a permanent magnet on a ceramic element.

The rotor has the form of the low cylinder, in tsilindriche6skoy parts of which are executed four rectangular cuts. During rotation of a rotor its cylindrical part passes between a pole of a magnet and Hall's converter, interrupting and rejecting four times for one turn a magnetic flux, every time causing education or disappearance of effect of Hall. At disappearance of effect of Hall the transistor of the switchboard passes current through primary winding of the coil of ignition, and emergence of a magnetic flux causes Hall's effect and interruption of course of current (similar to disconnection of contacts of the breaker in the classical distributor of ignition). At the time of disappearance of current in primary winding in a secondary winding of the coil of ignition the high voltage transferred by means of the distributor to a spark plug of the corresponding cylinder is induced.

The described decision is characterized by two important advantages: there is no mechanical wear and consequently no adjustment is required, and also energy of a spark of ignition practically irrespective of the engine speed (in classical system energy of a spark decreases at a large number of turns of the engine) is provided.

The distributor of ignition of the transistor Bosch system, as well as classical distributors, is equipped with ignition advancing corner regulators: centrifugal and vacuum. Whereas the distributor of ignition of the transistor Lucas system has no these regulators.


It is impossible to replace an original rotor of the distributor for preservation of the corresponding resistance.