Ford Sierra

1982-1993 of release

Repair and car operation



Ford Siyerra
+ 1.2. Car identification
+ 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. Gazoraspredeleniye system
            3.2.1.2.6. Greasing 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. Engine adjustment
         + 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 engine installation
         3.2.1.6. Engine dismantling
         3.2.1.7. Check of details
         3.2.1.8. Check of gaps of a cranked shaft and rods
         3.2.1.9. Engine assembly
         3.2.1.10. Greasing system
         3.2.1.11. Cooling system
         3.2.1.12. Coupling
         3.2.1.13. Mechanical five-speed transmission of MT 75 type
         3.2.1.14. Power shaft and back bridge
         3.2.1.15. Steering system
         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. Gazoraspredeleniye system

GENERAL INFORMATION

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

Gazoraspredeleniye 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 loose leaves.

Lifting of valves:

 – the inlet: 10 mm;
 – the final: 9 mm.

Axial люфт: 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 in action a cam-shaft, an intermediate shaft and the pump of cooling liquid.

Brand: Motorcraft.

Tension: it is regulated by automatically roller tension device.

Periodicity of replacement: each 60 000 km of run.