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
      - 3.1.4. Changes in a design of the car with 1987 to 1989
         3.1.4.1. Engine OHC
          3.1.4.2. Engine CVH 1,8 дм3
         - 3.1.4.3. Engine DOHC
            - 3.1.4.3.1. Technical characteristics
               3.1.4.3.1.1. A head of the block of cylinders of the engine
               3.1.4.3.1.2. The block of cylinders of the engine
               3.1.4.3.1.3. The Krivoshipno-shatunnyj mechanism
               3.1.4.3.1.4. System timing
               3.1.4.3.1.5. Greasing system
               3.1.4.3.1.6. Cooling system
               3.1.4.3.1.7. Fuel system
               3.1.4.3.1.8. Ignition system
               3.1.4.3.1.9. The tightening moments
          3.1.4.4. Service and repair
          3.1.4.5. Coupling
         3.1.4.6. A mechanical five-speed transmission of type
          3.1.4.7. A mechanical five-speed transmission of type МТ 75
         3.1.4.8. An automatic transmission
         3.1.4.9. A forward suspension bracket
          3.1.4.10. Brake system
          3.1.4.11. The electric equipment
         3.1.4.12. The general data
       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


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3.1.4.3.1.4. System timing
THE GENERAL DATA

Two cam-shafts are in a head of the block of cylinders and is put in action by a separate roller chain from a cranked shaft and put in action the valve by means of hydraulic pushers.

Cam-shafts

Two cam-shafts in a head of the block of cylinders lean on five bearings: one puts in action inlet the valve, and the second – final the valve.

Diameter of necks
25,960 – 5,980 mm
Axial backlash
0,02 – 0,26 mm
Lifting of cams:
  – Inlet valves in the carburettor engine
10,5 mm
  – Inlet valves in the engine with gasoline injection
11,1 mm
  – Final valves
10,9 mm

Phases timing

Engine type
N8A
N9A
OZD
13 before ВМТ
13 before ВМТ
ZZD
39 after НМТ
51 after НМТ
OZW
43 before НМТ
43 before НМТ
ZZW
13 after ВМТ
13 after ВМТ
OZD and ZZD – accordingly opening and closing of the inlet valve
OZW and ZZW – accordingly opening and closing of the final valve

Privodnaja chain timing

Single-row roller chain 3/8 "with a hydraulic tension.