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
            3.1.4.7.1. Technical characteristics
            3.1.4.7.2. Removal and installation of the transmission
            3.1.4.7.3. Dismantling of the transmission
            3.1.4.7.4. Check and repair of details
            3.1.4.7.5. Assembly of the transmission
         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 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





3.1.4.7.3. Dismantling of the transmission

GENERAL INFORMATION

Prevention

After dismantling of the transmission it is necessary to replace all spring lock rings on new with thickness providing the required values of an axial gap of the elements established with their help. It is necessary to replace all sealing rings also.


Mechanism of gear shifting of the MT 75 transmission

1 – axis of forks of 3-4 transfers, 5th transfer and transfer of a backing,
2 – axis of forks of 1-2 transfers,
3 – forks of 3-4 transfers,
4 – forks of the 5th transfer and transfer of a backing,
5 – plugs,
6 – forks of 1-2 transfers,
7, 8 – selectors,
9 – blocking stopper,
10 – pin,
11 – pin,
12 – finger of management,
13 – plug of management,
14 – the blocking finger making impossible simultaneous inclusion of two transfers
15 – plates

Coupling case front view

1 – plate of fixing of a nut,


2 – nut of the bearing of an intermediate shaft

Type of the left side of the transmission


1 – a bolt of a stopper of transfer of a backing, 2 – a selector stopper stopper,
3 – switch of fires of a backing,
4 – forward bolt of fastening of an axis of an intermediate gear wheel of transfer of a backing,
5 – back bolt of fastening of an axis of an intermediate gear wheel of transfer of a backing

Transmission elements (shaft, bearings, synchronizers, the gear shifting mechanism, etc.) settle down in two cases which are reported among themselves.

The first of them located closer to the engine contains also coupling and is called a coupling case (though in its back part six elements of the transmission settle down); another is called a transmission case (though it does not contain all elements of this knot).

PERFORMANCE ORDER
1. To merge oil from the transmission.
2. To remove the release bearing and forks of switching off of coupling from a case of coupling.
3. To record a flange of connection of the forward hinge of the driveshaft and to unscrew a nut of fastening of a flange by means of drawing easy blows to a key.
4. By means of Ford 16.040 adaptation to remove the directing plug of the release bearing of coupling.
5. To remove an internal spring ring from a main shaft.
6. To remove a plate of fixing of a nut of the bearing of an intermediate shaft (see rice. Coupling case front view).
7. By means of a key of 17 mm to unscrew a nut of the bearing of an intermediate shaft.
8. Sideways a case to unscrew bolts (Torx type) of a stopper of transfer of a backing (see rice. Type of the left side of the transmission).
9. Sideways a case to unscrew a stopper (2) stoppers of the selector and to take a spring, a pusher, the plug and a ball of a stopper of the selector.
10. To unscrew the switch (3) fires of a backing.
11. To unscrew two bolts (4 and 5) of fastening of an axis of an intermediate gear wheel of transfer of a backing and to take only a forward bolt (4).
12. To unscrew ten bolts of connection of a case of coupling with a transmission case.
13. By means of two screw-drivers it is careful to divide both parts of a case of the transmission.
14. To remove a coupling case from a transmission case; in case of need to use adaptation 16.041.
15. To remove an axis of forks (1) (see rice. Mechanism of gear shifting of the MT 75 transmission) of 3-4 transfers, 5th transfer and transfer of a backing.
16. To take a back bolt (5) (see rice. Type of the left side of the transmission) of fastening of an axis of an intermediate gear wheel of transfer of a backing.
17. From a case of the transmission to take a magnet.
18. By means of the corresponding stripper to remove a flange of connection of the forward hinge of the driveshaft from a secondary shaft.
19. To take a sealing ring from a secondary shaft.
20. To remove a driving gear wheel of a speedometer and its remote plug.
21. To extend from a transmission case a secondary shaft by means of a stripper.