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.
         3.1.3.1. 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. Cranked shaft
         3.1.3.6. Gazoraspredeleniye system
         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. Ignition system
         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 transmission of Ford A 4 LD
         3.1.3.16. Power shaft and back bridge
         3.1.3.17. Steering system 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 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





3.1.3.13. 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)

TYPE C TRANSMISSION

Nave of the synchronizer of transfers 3–4

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

Fastening of a back case

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

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

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