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
      3.1.1. Masses and transfer numbers
      3.1.2. Operational liquids
      + 3.1.3. Changes in a car design from 1984 to 1986.
      + 3.1.4. Changes in a car design from 1987 to 1989.
      - 3.1.5. Changes in a car design with 1990 till February, 1993.
         - 3.1.5.1. DOHC engine
            3.1.5.1.1. Technical characteristics
            3.1.5.1.2. Head of the block of cylinders
            3.1.5.1.3. Gazoraspredeleniye system
            3.1.5.1.4. System of injection of the engine of the N9C type
         3.1.5.2. Coupling
         3.1.5.3. Power shaft and back bridge
         3.1.5.4. Steering system with the hydraulic booster
         3.1.5.5. Electric equipment
         3.1.5.6. General data
   + 3.2. Cars with diesel engines
+ 4. Engines
+ 5. Coupling
+ 6. Transmissions
+ 7. Driveshaft and back bridge
+ 8. Steering
+ 9. Suspension brackets
+ 10. Brake system
+ 11. Body
+ 12. Electric equipment





3.1.5.1.3. Gazoraspredeleniye system

GENERAL INFORMATION

Position VMT of the piston of the 1st cylinder of the DOHC engine

The provision of adjusting signs on asterisks of the cam-shafts corresponding to VMT of the piston of the 1st cylinder of the DOHC engine, is specified by shooters.

Hydraulic tension device of a driving chain of system of a gazoraspredeleniye of the DOHC engine

And – the piston is blocked (two situation) is possible,

In – the piston is partially blocked,

With – the piston is unblocked,

1–ring

Driving chain of system of a gazoraspredeleniye

In the course of all operations demanding removal of a driving chain of cam-shafts, before its repeated installation it is necessary to replace the hydraulic tension device of a chain surely.

The method of replacement of a chain is changed. It is necessary to arrive as follows.

Replacement of a driving chain of system of a gazoraspredeleniye

PERFORMANCE ORDER
1. To disconnect from the accumulator a weight wire.
2. To disconnect an air damper together with the elastic pipeline of supply of air, the valve of management of idling and the pipeline of ventilation of a case of the engine.
3. To disconnect the pipeline of ventilation of a case of the engine from a cover of a head of the block of cylinders.
4. To disconnect a wire going from the coil of ignition to the distributor of ignition.
5. To uncover the distributor (two bolts with Torx nest).
6. To disconnect wires of a high voltage, to take a rotor of the distributor and to remove a protective plate of the distributor of ignition.
7. To uncover heads of the block of cylinders.
8. To remove the top casing of a driving chain of system of a gazoraspredeleniye.
9. To turn a cranked shaft so that to establish the piston of the 1st cylinder in VMT (see fig. Position VMT of the piston of the 1st cylinder of the DOHC engine).
10. By means of a special key to block asterisks of cam-shafts and to unscrew fastening bolts with Torx nest.
11. To take directing to a chain, made of an artificial material, after removal by tweezers of two blocking elements.
12. To take a drive of the distributor of ignition.
13. To designate the provision of a chain concerning asterisks of both cam-shafts.
14. To remove asterisks from both cam-shafts and slightly to pull a chain on the left side.
15. To take a spring adjusting ring of an axis of the tension device.
16. By means of bolt М6 to take an axis of the tension device, at the same time moving down the tension device for weakening of a tension of a chain (see fig. Removal of an axis of the tension device of a kardanny chain of system of a gazoraspredeleniye of the DOHC engine).
17. To remove the tension device.
18. To take a hydraulic pusher of the tension device.

Prevention

The pusher cannot be established repeatedly.


19. To establish a new hydraulic pusher. To check, whether correctly it is blocked (see fig. Hydraulic tension device of a driving chain of system of a gazoraspredeleniye of the DOHC engine). If it is completely unblocked (the ring 1) is visible or is partially unblocked (all top part of the piston of a pusher) is visible, for blocking it is necessary to press the piston in the pusher cylinder (the top part of the piston is not visible or minimum acts from the cylinder). Thus it is necessary to pay attention not to damage pistons of a hydraulic pusher.
20. To insert all knot into a head of the block of cylinders (the piston should be directed up).
21. To establish the tension device, an axis and a spring lock ring.
22. To put on a chain an asterisk of the left cam-shaft. To establish a shaft in the situation corresponding to position of the piston of the 1st cylinder in VMT, and to screw up a hand a bolt of fastening of an asterisk.
23. To execute the same operations for the right cam-shaft and to establish a drive of the distributor of ignition.
24. To establish new directing to a chain (from an artificial material) and to fix it.
25. Slowly to turn a cranked shaft clockwise until the cam-shaft of inlet valves will start to rotate.
26. If the piston of a pusher acts from its cylinder, it is necessary to press a hand the tension device for pusher unblocking.
27. If the upper edge of the piston is at height of the upper edge of its cylinder (is blocked), for unblocking of the piston it is necessary to arrive as follows: to lift a screw-driver the tension device and to establish between the case and the piston, for example, a welding electrode. Then to take a screw-driver and to unblock the piston.
28. To block asterisks of cam-shafts and to tighten their bolts the moment of 56-62 Nanometers.
29. To execute some turns cranked shaft and to check adjustment of the tension device.
30. To check a condition of laying and to put on the top casing of a driving chain of system of a gazoraspredeleniye.
31. Other actions to execute in return sequence in relation to process of removal of a chain.