Ford Sierra



Ford Sierra
1.2. Car identification
2. Maintenance service
- 3. The general data
    3.1. Cars with petrol engines
   - 3.2. Cars with diesel engines
      - 3.2.1. Changes in a design of the car with 1988 to 1993
         3.2.1.1. The engine 2,3 дм3
         - 3.2.1.2. The engine 1,8 дм3
            3.2.1.2.1. Technical characteristics
            3.2.1.2.2. A head of the block of cylinders
            3.2.1.2.3. The block of cylinders
            3.2.1.2.4. The Krivoshipno-shatunnyj mechanism
            3.2.1.2.5. System timing
            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. The 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 backlashes of a cranked shaft and rods
         3.2.1.9. Engine assemblage
         3.2.1.10. Greasing system
         3.2.1.11. Cooling system
         3.2.1.12. Coupling
         3.2.1.13. A mechanical five-speed transmission of type МТ 75
         3.2.1.14. A power shaft and the back bridge
         3.2.1.15. Steering system
         3.2.1.16. A forward suspension bracket
         3.2.1.17. Brake system
         3.2.1.18. The electric equipment
         3.2.1.19. The general data
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


3.2.1.2.10. Engine adjustment

Check of a backlash of valves

The backlash of valves is checked щупом between a back part of a cam and a pusher.

PERFORMANCE ORDER
1. To disconnect from a cover of a head of the block of cylinders the elastic pipeline of ventilation картера the engine.
2. To uncover the block of cylinders.
3. To turn a cranked shaft of the engine for a nut of fastening of a pulley (it is impossible to rotate for a cam-shaft pulley) in a direction of its working rotation before position in which both cams of 1st cylinder will be turned by a working part of a cam upwards.
4. To check up a backlash of valves of 1st cylinder, inserting a plate щупа between a back part of a cam and a pusher.
5. To define type of the checked valve (inlet or final) and to compare value of the measured backlash to demanded value (subsection 3.2.1.2.2 see). In case of need to adjust a backlash of the checked valve.

The prevention

Sequence of installation of valves, considering from a forward part of the engine (from outside a system drive timing) in each cylinder it is identical: the first (about a system drive timing) is the inlet valve, and the second – final.


6. To repeat the described actions for valves of other cylinders in sequence of injection (1–3–4–2, considering from outside system drives timing).

Adjustment of a backlash of valves

Adjustment of a backlash of valves consists in replacement of the adjusting plate located in deepening of a pusher. Replacement of adjusting plates does not demand cam-shaft extraction if the special adaptation for performance of this operation is used.


The prevention

In the course of replacement of plates of adjustment of a backlash of valves engine pistons should not be precisely in ВМТ, and on some millimetres more low (about 1/4 turns of a cranked shaft). It will prevent valve impact about a bottom of the piston pressed at replacement of an adjusting plate.


PERFORMANCE ORDER
1. To turn pushers so that in cuts in bottoms of pushers after compression it was possible to insert easily special nippers for extraction of adjusting plates.
2. To establish a cranked shaft of the engine in corresponding position (the description above see) and by means of the press device (the adaptation 21.106) to press downwards a pusher (opening simultaneously the valve and compressing its spring) so that by means of special nippers (21.107) it was possible to take an adjusting plate.
3. To measure a thickness of the taken plate and, taking in attention the measured backlash and the demanded nominal size, to pick up from the complete set a plate in the thickness providing the demanded backlash of the valve.
4. To insert the picked up plate so that a surface with its designation has been directed downwards (to a pusher).
5. To take the press device.
6. To repeat the described operations for other valves.
7. To establish a cover of a head of the block of cylinders with a new lining.
8. To attach to a cover of a head of the block of cylinders the elastic pipeline of system of ventilation картера the engine.