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
   - 3.2. Cars with diesel engines
      - 3.2.1. Changes in a car design from 1988 to 1993.
         3.2.1.1. Dm3 engine 2,3
         - 3.2.1.2. Dm3 engine 1,8
            3.2.1.2.1. Technical characteristics
            3.2.1.2.2. Head of the block of cylinders
            3.2.1.2.3. Block of cylinders
            3.2.1.2.4. Krivoshipno-shatunny mechanism
            3.2.1.2.5. System of gas distribution
            3.2.1.2.6. Lubrication system
            3.2.1.2.7. Cooling system
            3.2.1.2.8. Fuel system
            3.2.1.2.9. Tightening moments
            3.2.1.2.10. Adjustment of the engine
         + 3.2.1.3. Fuel system
         + 3.2.1.4. The repair which is not demanding removal of the engine
         3.2.1.5. Removal and installation of the engine
         3.2.1.6. Dismantling of the engine
         3.2.1.7. Check of details
         3.2.1.8. Check of gaps of a bent shaft and rods
         3.2.1.9. Assembly of the engine
         3.2.1.10. Lubrication system
         3.2.1.11. Cooling system
         3.2.1.12. Coupling
         3.2.1.13. Mechanical MT 75 five-speed transmission
         3.2.1.14. Power shaft and back bridge
         3.2.1.15. System of steering
         3.2.1.16. Forward suspension bracket
         3.2.1.17. Brake system
         3.2.1.18. Electric equipment
         3.2.1.19. General data
+ 4. Engines
+ 5. Coupling
+ 6. Transmissions
+ 7. Driveshaft and back bridge
+ 8. Steering
+ 9. Suspension brackets
+ 10. Brake system
+ 11. Body
+ 12. Electric equipment





3.2.1.2.5. System of gas distribution

GENERAL INFORMATION

Basic element of system of gas distribution is the cam-shaft located in a head of the block of cylinders and put in action by a gear belt from a bent shaft.

The gas distribution phases (measured at a working gap of valves):

 – OZD: 6 ° before VMT;
 – ZZD: 32 ° after NMT;
 – OZW: 57 ° before NMT;
 – ZZW: 7 ° after VMT.

OZD and ZZD – respectively opening and closing of the inlet valve; OZW and ZZW-respectively opening and closing of the final valve.

Cam-shaft

The cam-shaft leans on five bearings containing thin-walled inserts.

Raising of valves:

 – inlet: 10 mm;
 – final: 9 mm.

Axial side play: 0,1–0,2 mm.

Diameter of necks of bearings: 27,960–27,980 mm.

Gap in cam-shaft bearings: 0,020–0,079 mm.

Gear belt

The gear belt puts a cam-shaft, an intermediate shaft and the pump of cooling liquid in action.

Brand: Motorcraft.

Tension: it is regulated by automatically roller tension device.

Frequency of replacement: each 60 000 km of a run.