Ford Sierra

1982-1993 of release

Repair and car operation



Ford Siyerra
+ 1.2. Car identification
+ 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
         - 3.1.4.3. DOHC engine
            - 3.1.4.3.1. Technical characteristics
               3.1.4.3.1.1. Head of the block of cylinders of the engine
               3.1.4.3.1.2. Block of cylinders of the engine
               3.1.4.3.1.3. Krivoshipno-shatunny mechanism
               3.1.4.3.1.4. Gazoraspredeleniye system
               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. Tightening moments
         + 3.1.4.4. Service and repair
         + 3.1.4.5. Coupling
         3.1.4.6. Mechanical five-speed transmission of type N
         + 3.1.4.7. Mechanical five-speed transmission of MT 75 type
         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 with 1990 till 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





3.1.4.3.1.4. Gazoraspredeleniye system

GENERAL INFORMATION

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 gap
0,02-0,26 mm
Lifting of cams:
  – inlet valves in the carburetor engine
10,5 mm
  – inlet valves in the engine with gasoline injection
11,1 mm
  – final valves
10,9 mm

Gazoraspredeleniye phases

Engine type
N8A
N9A
OZD
13 ° before VMT
13 ° before VMT
ZZD
39 ° after NMT
51 ° after NMT
OZW
43 ° before NMT
43 ° before NMT
ZZW
13 ° after VMT
13 ° after VMT
OZD and ZZD – respectively opening and closing of the inlet valve
OZW and ZZW – respectively opening and closing of the final valve

Driving chain of a gazoraspredeleniye

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