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



4.1.1.4. System timing
THE GENERAL DATA

Four-cylinder рядный engine ONS (general view)

The cam-shaft is located in a head of the block of cylinders, actuates the valve by means of the lever of valves and is put in action by a gear belt.

Working backlash of valves (in a cold condition):

  – The inlet: 0,20 mm;
  – The final: 0,25 mm.

Distribution phases

The engine
1,3 дм3 and 1,6 дм3
2,0 дм3
OZD
22 before ВМТ
24 before ВМТ
ZZD
54 after НМТ
64 after НМТ
OZW
64 before НМТ
70 before НМТ
ZZW
12 after ВМТ
18 after ВМТ

OZD and ZZD – accordingly opening and closing of the inlet valve;
OZW and ZZW – accordingly opening and closing of the final valve;
ВМТ and НМТ – accordingly the top and bottom dead points.

Gear belt

Mark: Ford Powergrip
Type:
  – The engine 1,3 дм3
70НМ 6288 АА
  – The engine 1,6 дм3
70НМ 6288 АА
  – The engine 2,0 дм3
70НМ 6268 АА
Number of teeths
  – The engine 1,3 дм3
119
  – двигатель1,6 дм3
119
  – The engine 2,0 дм3
122

Cam-shaft

The cam-shaft rotates in three bearings.

Diameters of bearings of a cam-shaft:
  – The forward
41,987 – 42,013 mm
  – An average
44,607 – 44,633 mm
  – The back
44,987 – 45,013 mm
Internal diameters of plugs of bearings:
  – The forward
42,035 – 42,055 mm
  – An average
44,655 – 44,675 mm
  – The back
45,035 – 45,055 mm
Axial люфт a cam-shaft
0,104 – 0,204 mm
Thickness of persistent linings of a cam-shaft
3,96 – 4,01 mm
Lifting of cams:
  – The engine 1,3 дм3
5,9639 mm
  – The engine 1,6 дм3
5,9639 mm
  – The engine 2,0 дм3
6,3323 mm
Height of cams:
  – The engine 1,3 дм3
35,894 – 36,234 mm
  – двигатель1,6 дм3
35,894 – 36,234 mm
  – The engine 2,0 дм3
36,260 – 36,600 mm