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
            - 3.1.4.2.1. Technical characteristics
               3.1.4.2.1.1. A head of the block of cylinders of the engine
               3.1.4.2.1.2. The block of cylinders of the engine
               3.1.4.2.1.3. The Krivoshipno-shatunnyj mechanism
               3.1.4.2.1.4. System timing
               3.1.4.2.1.5. Greasing system
               3.1.4.2.1.6. Cooling system
               3.1.4.2.1.7. Fuel system
               3.1.4.2.1.8. Ignition system
               3.1.4.2.1.9. The tightening moments
            3.1.4.2.2. Engine adjustment
            3.1.4.2.3. Ignition system
            3.1.4.2.4. System timing
            3.1.4.2.5. Assemblage of engine CVH 1,8 дм3
          3.1.4.3. Engine DOHC
          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



3.1.4.2.1.3. The Krivoshipno-shatunnyj mechanism
THE GENERAL DATA

Cranked shaft

The cranked shaft made of pig-iron is dynamically balanced and leans on five radical bearings.

Diameters of radical necks:
  – The nominal
53,980 – 54,000 mm
  – Repair-0,25
53,730 – 53,750 mm
  – Repair-0,50
53,480 – 53,500 mm
  – Repair-0,75
53,230 – 53,250 mm
Width of the basic bearing:
  – The nominal:
28,825 – 28,875 mm
  – The repair
28,675 – 28,725 mm
Radial backlash in radical bearings
0,028 – 0,067 mm
Axial backlash of a cranked shaft
0,1 – 0,2 mm
Diameter шатунных necks:
  – The nominal
43,890 – 43,910 mm
  – Repair-0,25
43,640 – 43,660 mm
  – Repair-0,50
43,390 – 43,410 mm
  – Repair-0,75
43,140 – 43,160 mm
  – Repair-1,00
42,89 – 42,910 mm

Radical loose leaves

Thin-walled loose leaves are used.

Internal diameter of loose leaves after installation in the block of cylinders:
  – The nominal
58,016 – 58,059 mm
  – Repair-0,25
57,776 – 57,809 mm
  – Repair-0,50
57,516 – 57,559 mm
  – Repair-0,75
57,266 – 57,309 mm

Rods

Rods are shaped from a steel and have двутавровое section.

Diameter of an aperture of the bottom head
46,890 – 46,900 mm
Diameter of an aperture of a head
20,622 – 20,634 mm
Radial backlash in шатунных bearings
0,020 – 0,065 mm

Shatunnye loose leaves

Thin-walled loose leaves are used.

Internal diameter of loose leaves after installation in the block of cylinders:
  – The nominal
43,919 – 43,960 mm
  – Repair-0,25
43,669 – 43,710 mm
  – Repair-0,50
43,419 – 43,460 mm
  – Repair-0,75
43,169 – 43,210 mm
  – Repair-1,00
42,919 – 42,960 mm

Pistons

Pistons are cast under pressure from an easy alloy, have a flat bottom with deepenings for plates of valves.

Piston backlash in the cylinder:
  – The nominal
0,02 – 0,04 mm
  – The repair
0,01 – 0,045 mm
Nominal diameters of pistons:
Cтандартные:
  – Group 1
79,910 – 79,920 mm
  – Group 2
79,920 – 79,930 mm
  – Group 3
79,930 – 79,940 mm
  – Group 4
79,940 – 79,950 mm
  – Group 5
79,950 – 79,960 mm
  – Group 6
79,960 – 79,970 mm
The increased:
  – Group And
79,970 – 79,980 mm
  – Group In
79,980 – 79,990 mm
  – Group With
79,990 – 80,000 mm

Repair diameters of cylinders: are increased by 0,290 or 0,500 mm.

Piston rings

Each piston has rings: two sealing and one маслосъемное.

Sealing rings should be directed an inscription of "Torahs" towards a head of the block of cylinders.

Backlash of the lock of rings (placed in the cylinder):

  – The sealing: 0,30 – 0,50 mm;
  – маслосъемное: 0,40 – 1,40 mm.

Position of locks of rings on the piston: cuts of sealing rings should be placed in regular intervals on piston perimetre, and components маслосъемного rings should have the cuts located through each 120 .

Flywheel

The flywheel is fixed on a flange of a cranked shaft by means of 6 bolts.

Gear wreath напрессовывается at temperature 260 –280 With.