Ford Sierra



Ford Sierra
1.2. Car identification
2. Maintenance service
3. The general data
- 4. Engines
   - 4.1. Petrol engines
      - 4.1.1. Technical characteristics
         4.1.1.1. A head of the block of cylinders
         4.1.1.2. The block of cylinders of the engine
         4.1.1.3. The Krivoshipno-shatunnyj mechanism
         4.1.1.4. System timing
         4.1.1.5. Greasing system
         4.1.1.6. Cooling system
         4.1.1.7. Fuel system
         4.1.1.8. Ignition system
         4.1.1.9. The tightening moments
      4.1.2. Adjustment of backlashes of valves
       4.1.3. Ignition system
       4.1.4. Fuel system
       4.1.5. The repair which is not demanding removal of the engine
      4.1.6. Removal and engine installation
      4.1.7. Engine dismantling
      4.1.8. Identification of co-operating parts
      4.1.9. Engine assemblage
      4.1.10. Replacement of pistons
      4.1.11. Removal and installation of an intermediate shaft
      4.1.12. System timing
      4.1.13. Greasing system
       4.1.14. Cooling system
      4.1.15. A suspension bracket of the power unit
      4.1.16. System of release of the fulfilled gases
    4.2. The diesel engine
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



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

The head is executed from a special alloy and has the saddles of valves executed directly in a material of a head of the block of cylinders.

Designation:
  – The engine in volume 1,3 дм3
3
  – The engine in volume 1,6 дм3
6
  – The engine in volume 2,0 дм3
0
Corner прилегания valves
4430 ' – 45
Width прилегания valve saddles:
  – The inlet
1,5 mm
  – The final
2,0 mm
The maximum depth of regrinding of the bottom plane of a head of the block of cylinders
0,154 mm
Diameters of apertures of nests of bearings of a cam-shaft:
  – The forward bearing
45,072 – 45,102 mm
  – The average bearing
47,692 – 47,772 mm
  – The back bearing
48,072 – 48,102 mm

Lining of a head of the block of cylinders

Mark: Reinz.

Directing valves

Apertures directing are executed directly in a head of the block of cylinders.

Nominal diameter
8,063 – 8,088 mm
The repair size:
  – Excess 0,2
8,263 – 8,288 mm
  – Excess 0,4
8,463 – 8,488 mm

The valve

The valve are established in a head of the block of cylinders and are inclined at an angle 730 ' to a cylinder axis.

The sizes of valves (mm)

The engine
1,3 дм3
1,6 дм3
2,0 дм3
The valve inlet:
  – Length
112,65 – 113,65
112,65 – 113,65
110,65 – 111,65
  – Diameter of a plate
38,30 – 38,70
41,80 – 42,20
41,80 – 42,20
The valve final:
  – Length
112,05 – 113,75
112,05 – 113,75
110,10 – 112,05
  – Diameter of a plate
29,80 – 30,20
34,00 – 34,40
35,80 – 36,20

The sizes of inlet valves the general for all engines.

Diameter of a core

The nominal
8,025 – 8,043 mm
The repair size 0,2
8,225 – 8,243 mm
The repair size 0,4
8,425 – 8,443 mm
The repair size 0,6
8,625 – 8,643 mm
The repair size 0,8
8,825 – 8,843 mm

The sizes of final valves the general for all engines.

Diameter of a core

The nominal
7,999 – 8,017 mm
The repair size 0,2
8,199 – 8,217 mm
The repair size 0,4
8,399 – 8,417 mm
The repair size 0,6
8,599 – 8,617 mm
The repair size 0,8
8,799 – 8,817 mm

Core backlash in directing – 0,046–0,089 mm.

Working backlash of valves (at the cold engine):
  – The inlet valve
0,20 mm
  – The final valve
0,25 mm

Springs of valves

Identical springs are applied to inlet and final valves.

Diameter of a spring
23,445 – 23,95 mm
Diameter of a wire of a spring
3,87 – 3,93 mm
Number of coils
4,7
Free length
47,00 mm