Ford Sierra



Ford Sierra
1.2. Car identification
2. Maintenance service
- 3. The general data
   - 3.1. Cars with petrol engines
      3.1.1. Weights and transfer numbers
      3.1.2. Operational liquids
      - 3.1.3. Changes in a design of the car with 1984 to 1986
         3.1.3.1. The engine
         3.1.3.2. A head of the block of cylinders
         3.1.3.3. The block of cylinders of the engine
         3.1.3.4. The Krivoshipno-shatunnyj mechanism
         3.1.3.5. A cranked shaft
         3.1.3.6. System timing
         3.1.3.7. An engine mount
         3.1.3.8. Cooling system
          3.1.3.9. The carburettor
         3.1.3.10. System of injection of fuel
         3.1.3.11. Ignition system
         3.1.3.12. Coupling
         3.1.3.13. A mechanical four-speed transmission
         3.1.3.14. A mechanical five-speed transmission
          3.1.3.15. Automatic transmission Ford A 4 LD
         3.1.3.16. A power shaft and the back bridge
         3.1.3.17. System of a steering with the hydraulic booster
         3.1.3.18. A forward suspension bracket
         3.1.3.19. A back suspension bracket
         3.1.3.20. Brake system
          3.1.3.21. The electric equipment
         3.1.3.22. The general data
       3.1.4. Changes in a design of the car with 1987 to 1989
       3.1.5. Changes in a design of the car with 1990 till February, 1993
    3.2. Cars with diesel engines
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


3.1.3.2. A head of the block of cylinders
THE GENERAL DATA

Arrangement of consolidations and intensifying plates of a cover of a head of the block of cylinders with width of a surface прилегания linings of 5,5 mm

And, In – a strengthened plate,

With – consolidation

Arrangement of consolidations and intensifying plates of a cover of a head of the block of cylinders with width of a surface прилегания linings of 8 mm

And, In, D – a strengthened plate,

With – consolidation

Identification of bolts of fastening of a head of the block of cylinders

And – bolt Torx T55,

In – a bolt with internal двенадцатиугольной an asterisk

Since September, 1983 (a code of date of manufacturing "DJ") all engines are equipped with a head of the block of cylinders with raised (about 5,5 mm to 8 mm) width of a surface прилегания linings of a cover of a head of the block of cylinders.

Since April, 1984 bolts of fastening of a head of the block of cylinders of type Torx T55 with a head with an internal six-coal asterisk are used. The order of their tightening has not changed.

In a case вытекания oils from under a cover of a head of the block of cylinders in the car made till September, 1983 with a surface under a lining in width of 5,5 mm it is necessary to arrive as follows.

PERFORMANCE ORDER
1. To uncover heads of the block of cylinders and to level the damaged or deformed surface of a support of a cover of a head.
2. To establish a cover of a head of the block of cylinders together with a lining of new type and six additional consolidations.
3. To replace angular plates (type Grower) with four strengthened plates.

If the surface прилегания in a cover of a head of the block of cylinders cannot be resulted linings in a normal state it is necessary to arrive as follows.

PERFORMANCE ORDER
1. To establish following elements of new type: a cover of a head of the block of cylinders and a lining, and also a casing of a gear belt.
2. To replace angular plates (type Grower) with four strengthened plates and to establish six additional consolidations.

If replacement of a lining of a cover of a head of the block of cylinders in the car, the made ambassador of September, 1983 it is necessary to arrive as follows is necessary.

PERFORMANCE ORDER
1. To establish the strengthened plates.
2. To tighten bolts of fastening of a cover of a head of the block of cylinders the moment of 5-8 Nanometers.

The moments of a tightening of bolts of fastening of a head of the block of cylinders with a nest of type Torx T55

1st stage
35 – 40 Nanometers
2nd stage
70 – 75 Nanometers
3rd stage (later 5 minutes)
To tighten on 90

The prevention

Bolts of fastening of a head of the block of cylinders with a nest of type Torx T55 are bolts of disposable application. For fastening of a head of the block of cylinders each time it is necessary to use necessarily new bolts with a nest of type Torx. Bolts with a nest of type Torx cannot be tightened on the warm engine.


VALVES

The sizes of valves of engines ONS 1,6 дм3 LSD and 1,8 дм3 REB

The engine
1,6 дм3 LSD
1,8 дм3 REB
The inlet valve:
  – Length (mm)
112,55
111,75 – 112,75
  – Diameter plates (mm)
41,80 – 42,20
41,80 – 42,20
The final valve:
  – Length (mm)
112,55
111,15 – 112,15
  – Diameter plates (mm)
34,00 – 34,40
34,00 – 34,40

Course of valves

The engine 1,6 дм3 LSD
9,5 mm
The engine 1,8 дм3 REB
10,1 mm