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.
         3.1.3.1. Engine
         3.1.3.2. Head of the block of cylinders
         3.1.3.3. Block of cylinders of the engine
         3.1.3.4. Krivoshipno-shatunny mechanism
         3.1.3.5. Bent shaft
         3.1.3.6. System of gas distribution
         3.1.3.7. Engine mount
         3.1.3.8. Cooling system
         + 3.1.3.9. Carburetor
         3.1.3.10. System of injection of fuel
         3.1.3.11. System of ignition
         3.1.3.12. Coupling
         3.1.3.13. Mechanical four-speed transmission
         3.1.3.14. Mechanical five-speed transmission
         + 3.1.3.15. Automatic Ford A 4 LD transmission
         3.1.3.16. Power shaft and back bridge
         3.1.3.17. System of steering with the hydraulic booster
         3.1.3.18. Forward suspension bracket
         3.1.3.19. Back suspension bracket
         3.1.3.20. Brake system
         + 3.1.3.21. Electric equipment
         3.1.3.22. General data
      + 3.1.4. Changes in a car design from 1987 to 1989.
      + 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





3.1.3.13. Mechanical four-speed transmission

GENERAL INFORMATION

Torx bolts

And – a bolt with Torx head (an external hexagonal asterisk),

In – a bolt with Torx nest (an internal hexagonal asterisk)

TRANSMISSION OF S TYPE

Nave of the synchronizer of transfers 3–4

Since January, 1983 (a code of date of production "DC") in mechanical transmissions of S type naves of the synchronizer of transfers 3–4 new types are applied. This change is entered for elimination of the vibrations of a ring of the synchronizer arising in not switched on synchronizer. The entered change does not influence the method of dismantling and assembly of the transmission given in subsection 6.1.5.

Fastening of a back case

Since March, 1983 (a code of date of production "DD") the back case of the transmission of S type fastens by means of bolts with a head like Torx.

In the course of unscrewing and tightening of these bolts use of the corresponding tools (Torx E12) of these bolts adapted for heads is obligatory. Use of the inappropriate tool will cause damage of a head of a bolt.

Other information concerning a technical characteristic, adjustment and repair of the mechanical four-speed transmission is provided in subsection 6.1.