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



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.