Ford Sierra



Ford Sierra
1.2. Car identification
2. Maintenance service
- 3. The general data
   - 3.1. Cars with petrol engines
      3.1.1. Weights and transfer numbers
      3.1.2. Operational liquids
       3.1.3. Changes in a design of the car with 1984 to 1986
      - 3.1.4. Changes in a design of the car with 1987 to 1989
         3.1.4.1. Engine OHC
          3.1.4.2. Engine CVH 1,8 дм3
          3.1.4.3. Engine DOHC
         - 3.1.4.4. Service and repair
            3.1.4.4.1. Ignition system
            3.1.4.4.2. Injection system
            3.1.4.4.3. The scheme of system EES of IV engine DOHC 2,0 дм3
            3.1.4.4.4. Check and adjustment of system EES IV
            3.1.4.4.5. Elimination of malfunctions
            3.1.4.4.6. Check of elements of system EES IV
            3.1.4.4.7. System timing
            3.1.4.4.8. A head of the block of cylinders of the engine
            3.1.4.4.9. Engine dismantling
            3.1.4.4.10. Engine assemblage
            3.1.4.4.11. Greasing system
          3.1.4.5. Coupling
         3.1.4.6. A mechanical five-speed transmission of type
          3.1.4.7. A mechanical five-speed transmission of type МТ 75
         3.1.4.8. An automatic transmission
         3.1.4.9. A forward suspension bracket
          3.1.4.10. Brake system
          3.1.4.11. The electric equipment
         3.1.4.12. The general data
       3.1.5. Changes in a design of the car with 1990 till February, 1993
    3.2. Cars with diesel engines
4. Engines
5. Coupling
6. Transmissions
7. A kardannyj shaft and the back bridge
8. A steering
9. Suspension brackets
10. Brake system
11. A body
12. An electric equipment


3.1.4.4.2. Injection system
THE GENERAL DATA

Elements of system of injection Ford Motorcraft EFI of engine DOHC

1 – an inlet collector,
2 – the case throttle заслонки,
3 – the pipeline of giving of air to a regulator of idling,
4 – the gauge of temperature of a cooling liquid,
5 – the gauge of temperature of arriving air,
6 – a regulator of pressure of fuel,
7 – the gauge of temperature of fuel,
8 – a collector of atomizers,
9 – linings of atomizers,
10 – fuel atomizers,
11 – a regulator of idling,
12 – демпфер fluctuations of air,
13 – a cover of the air filter,
14 – a replaced element of the air filter,
15 – the case of the air filter.

Design and action principle

In electronic multidot system of injection Ford Motorcraft EFI the fuel submitted under constant small pressure, goes to four atomizers which inject it on inlet the valve. The quantity of sprayed fuel is regulated by time of opening of the atomizers, defined electronic control mean ЕЕС IV on the basis of number of turns of the engine and size of course of air consumed by the engine.

The electric fuel pump shipped in a tank, forces constantly fuel through the pipeline to the fuel filter, a regulator of pressure (6), a collector of atomizers (8) and to atomizers (10). The pressure regulator supports constant pressure for the given depression in an inlet collector.

The quantity of the fuel submitted to each cylinder, is regulated by time of opening of the atomizer, having on each cycle of work of the cylinder.

Electronic actuation device EES IV defines this time on the basis of following signals:

  – The gauge (5) temperatures of arriving air;
  – The gauge of number of turns of the engine located in the distributor of ignition;
  – The gauge (4) cooling liquids;
  – The gauge of position throttle заслонки, located in картере throttle заслонки (2);
  – The gauge of position of the lever of a gear change of an automatic transmission (in cars with an automatic transmission);
  – The gauge of inclusion of the compressor of the conditioner (in cars with air-conditioning).

On the basis of these signals electronic actuation device EES IV provides optimum for the given working conditions of the engine structure of a mix of fuel and air.

Besides it operates the valve of a regulator (11) idlings which corrects number of turns of idling by means of giving of additional air through the pipeline (3). In the course of start of the engine the valve of a regulator of idling is opened as much as possible.

In a no-load time its opening changes depending on requirement, keeping constant number of turns of the engine.