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
   - 4.2. Diesel engine
      + 4.2.1. Technical characteristics
      4.2.2. Check and adjustment of gaps of valves
      + 4.2.3. Fuel system
      - 4.2.4. Nozzles
         4.2.4.1. Check of tightness of a spray of a nozzle
         4.2.4.2. Adjustment of initial pressure of injection
      4.2.5. Glow plugs
      4.2.6. Check of a compression
      4.2.7. Removal of air from fuel system
      4.2.8. Fuel filter
      4.2.9. Fuel pump, installation of the beginning of injection of fuel
      4.2.10. Adjustment of speed of idling
      + 4.2.11. The repair which is not demanding removal of the engine
+ 5. Coupling
+ 6. Transmissions
+ 7. Driveshaft and back bridge
+ 8. Steering
+ 9. Suspension brackets
+ 10. Brake system
+ 11. Body
+ 12. Electric equipment


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4.2.4.2. Adjustment of initial pressure of injection

GENERAL INFORMATION

Fuel dispersion torch

Initial pressure of injection is regulated by installation of laying under a spring. Increase in thickness of laying increases pressure of the beginning of injection, reduction – reduces. Change of thickness of laying approximately changes pressure of the beginning of injection upon 1 kg/cm2 to 0,01 mm.

Indispensable condition of work of a nozzle is quality of dispersion. The torch of dispersion has to be uniform on all cross section of a cone of dispersion, and dispersion has to be misty.

The beginning and the end of injection have to be accurate. At new nozzles the injection is followed by a sharp sound, At the working nozzles lack of this sound is not a malfunction sign.