Ford Sierra

1982-1993 of release

Repair and operation of the car



Ford Siyerra
+ 1.2. Identification of the car
+ 2. Maintenance
- 3. General data
   - 3.1. Cars with petrol engines
      3.1.1. Masses and transfer numbers
      3.1.2. Operational liquids
      + 3.1.3. Changes in a car design from 1984 to 1986.
      - 3.1.4. Changes in a car design from 1987 to 1989.
         3.1.4.1. OHC engine
         - 3.1.4.2. Dm3 CVH 1,8 engine
            - 3.1.4.2.1. Technical characteristics
               3.1.4.2.1.1. Head of the block of cylinders of the engine
               3.1.4.2.1.2. Block of cylinders of the engine
               3.1.4.2.1.3. Krivoshipno-shatunny mechanism
               3.1.4.2.1.4. System of gas distribution
               3.1.4.2.1.5. Lubrication system
               3.1.4.2.1.6. Cooling system
               3.1.4.2.1.7. Fuel system
               3.1.4.2.1.8. System of ignition
               3.1.4.2.1.9. Tightening moments
            3.1.4.2.2. Adjustment of the engine
            3.1.4.2.3. System of ignition
            3.1.4.2.4. System of gas distribution
            3.1.4.2.5. Assembly of the CVH 1,8 engine of dm3
         + 3.1.4.3. DOHC engine
         + 3.1.4.4. Service and repair
         + 3.1.4.5. Coupling
         3.1.4.6. Mechanical five-speed transmission of N type
         + 3.1.4.7. Mechanical MT 75 five-speed transmission
         3.1.4.8. Automatic transmission
         3.1.4.9. Forward suspension bracket
         + 3.1.4.10. Brake system
         + 3.1.4.11. Electric equipment
         3.1.4.12. General data
      + 3.1.5. Changes in a car design from 1990 to February, 1993.
   + 3.2. Cars with diesel engines
+ 4. Engines
+ 5. Coupling
+ 6. Transmissions
+ 7. Driveshaft and back bridge
+ 8. Steering
+ 9. Suspension brackets
+ 10. Brake system
+ 11. Body
+ 12. Electric equipment





3.1.4.2.1.4. System of gas distribution

GENERAL INFORMATION

The cam-shaft is in a head of the block of cylinders and is put in action by a gear belt from a bent shaft.

Gas distribution phases


OZD
24 ° before VMT
ZZD
116 ° after NMT
OZW
110 ° before NMT
ZZW
18 ° after VMT
OZD and ZZD – respectively opening and closing of the inlet valve
OZW and ZZW – respectively opening and closing of the final valve

Phases of gas distribution are given when raising the valve in 1 mm and the fixed levers of all valves, except the lever of the valve which phases are measured.

Cam-shaft

Diameter of necks
45,7625 – 45,7375 mm
Axial gap
0,02 – 0,15 mm
Thickness of a persistent plate
4,99 – 5,01 mm
Raising of cams (inlet and final)
5,79 mm
Height of cams (inlet and final)
38,305 mm

The cam-shaft is made of cast iron and located in five bearings in a head of the block of cylinders, recorded is longitudinal by means of the plate screwed by two bolts on a head of the block of cylinders and is put in action by a gear belt.

Gear belt

Brand
Motorcraft
Tension:
  – new belt
350 – 450 N
  – the belt which was in the use (after 10 min. work)
250 N
The tension measured by means of Ford adaptation:
  – new belt
10 – 11 units
  – the belt which was in the use
4 – 6 units
Adjustment of a tension
by means of the mechanical roller tension device