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
         + 3.1.4.3. 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
            3.1.4.10.1. Technical characteristics
            3.1.4.10.2. Service and repair
            3.1.4.10.3. Adjustment of the emergency brake
            3.1.4.10.4. Removal of air from the brake system
            3.1.4.10.5. Anti-blocking system
            3.1.4.10.6. ABS functioning check
            3.1.4.10.7. Hydraulic knot of management
            3.1.4.10.8. Sensor of speed of rotation of wheels
         + 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


a773976c

3.1.4.10. Brake system

3.1.4.10.1. Technical characteristics

GENERAL INFORMATION

Since November, 1988 all versions can be equipped with anti-blocking system.

The working brake with anti-blocking system is put in action hydraulically by the double-circuit main brake cylinder (type a tandem) and in addition hydraulic auxiliary device.

Hydraulic lobbies of the right and left brakes of a contour are divided and are run by the main brake cylinder. Back brakes (in the system "Y") are run by the hydraulic auxiliary device.

The emergency brake is put in action mechanically (cable), characterized by automatic elimination of a gap and affects mechanisms of back brakes.

Forward brakes

Forward brakes disk. In them the ventilated disks and also floating a support with one piston are used.

Support

Brand and type: Ford 2L 232. Diameter of the piston: 60 mm.

Disk

Outer diameter: 240 mm.

Thickness:

 – nominal: 24 mm;
 – nominal admissible: 22 mm.

Maximum beats of a disk: 0,15 mm.

Brake shoes

Brand and type of blocks: Ferodo of 343 25 FF. Nominal thickness: 18 mm.

Nominal admissible thickness: is defined by deleting of a flute on surfaces of a brake shoe.

Back brakes

Back brakes disk. In them full disks, and also floating a support with one piston are established.

Support

Brand and type: Ford L2 9024. Diameter of the piston: 43 mm.

Disk

Outer diameter: 252,7 mm.

Thickness:

 – nominal: 10,1 mm;
 – nominal admissible: 8,9 mm.

Maximum beats of a disk: 0,15 mm.

Brake shoes

Brand and type of blocks: DON 8106/1. Nominal thickness: 13,5 mm.

Nominal admissible thickness: is defined by deleting of a flute on surfaces of a brake shoe.

System of the drive

The system putting a working brake in action is hydraulic, contains the double-circuit main brake cylinder and the hydraulic auxiliary device, and also anti-blocking system.

Brand: ABS Teves. Electronic actuation device: Teves.

Resistance of the sensor of speed of rotation of a wheel: 0,8–1,4 Ohms.

Control pressure: 4–9 MPas.

Brake fluid

Quantity: 1,4 dm3.

Type: Ford SAM 6C 9103 A brake fluid.

Frequency of replacement: each 60 000 km or time in two years.

Tightening moments

Fastening of an arm of a support of a forward brake
65 – 75 Nanometers
Fastening of a support of a forward brake to an arm
31 – 35 Nanometers
Fastening of the holder of a support of a back brake
51 – 61 Nanometers
Fastening of a support of a back brake to the holder
51 – 61 Nanometers
Fastening of hydraulic knot of management to a frontal partition
41 – 51 Nanometers
Fastening of the hydraulic accumulator to the brake cylinder
34 – 46 Nanometers
Fastening of the brake cylinder
70 – 90 Nanometers
Fastening of sockets (Banjo) of pipelines of high pressure
16 – 24 Nanometers
Fastening of the holder of a tank of brake fluid
40 – 60 Nanometers

Fastening of the sensor of speed of rotation of a wheel

85 – 110 Nanometers