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.
      - 3.1.4. 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 type N
         - 3.1.4.7. Mechanical five-speed transmission of MT 75 type
            3.1.4.7.1. Technical characteristics
            3.1.4.7.2. Removal and transmission installation
            3.1.4.7.3. Transmission dismantling
            3.1.4.7.4. Check and repair of details
            3.1.4.7.5. Transmission assembly
         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 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





3.1.4.7.2. Removal and transmission installation

GENERAL INFORMATION

Shaft and gear wheels of a mechanical transmission of MT 75 type

1–needle bearing,
2–lock spring ring,
3–bearing,
4–primary shaft,
5–ring of the synchronizer,
6–needle bearing,
7–lock spring ring,
8–nave of the synchronizer 3-4передач,
9–gear wheel of the 3rd transfer,
10-remote plug,
11-gear wheel of the 2nd transfer,
12-gear wheel of the 1st transfer,
13-secondary shaft,
14-gear wheel of transfer of a backing,
15-gear wheel of the 5th transfer,
16-gear wheel of a drive of a speedometer,
17-intermediate shaft,
18-axis of an intermediate gear wheel of transfer of a backing,
19-basic plug of the bearing of a gear wheel of transfer of a backing,
20-intermediate gear wheel of transfer of a backing,
21-synchronizer latch
Numbers of transfers are provided in black circles (by AR – transfer of a backing, RS – direct transfer – 4)

Removal

PERFORMANCE ORDER
1. To disconnect from the accumulator a weight wire.
2. To remove the handle of the lever of gear shifting.
3. To remove (depending on the equipment version) the average console or the shelf about the gear shifting lever.
4. To remove an external casing of the lever of gear shifting after a detachment it from the holder, and also an internal casing with the holder after unscrewing of a frame of the holder from the floor tunnel.
5. To unscrew the gear shifting lever from a back part of a case of a transmission.
6. To prop up a coupling pedal.
7. In a compartment of the engine to remove forward left and right acoustic isolation.
8. To remove the top casing of a radiator.
9. To unscrew the top bolt of fastening of a starter and to disconnect a weight wire.
10. To prop up the engine a jack.
11. Under the car to remove the bottom acoustic casing of the engine.
12. To disconnect a metallo-rubber connector from a longitudinal beam.
13. To disconnect a forward reception pipe from a final collector, having unscrewed nuts of its fastening.
14. To disconnect the driveshaft from a flange of a leading gear wheel of the main transfer, holding hairpins with the Torx tool that they were not unscrewed from a flange of the main transfer when unscrewing nuts of fastening of a shaft, and also to disconnect the average bearing of the driveshaft from a body arm.
15. To disconnect the spherical hinge of the driveshaft from a flange of a transmission and to take the driveshaft.
16. To prop up a transmission by means of wooden whetstones.
17. To remove the holder of a suspension bracket of a transmission.
18. To lower a transmission.
19. To lower the engine. Its head of the block of cylinders should not contact to brake pipelines thus. In case of need it is possible to establish wooden whetstone between a head of the block of cylinders and a face-to-face partition.
20. To disconnect the external mechanism of gear shifting.
21. To disconnect a cable of a speedometer and a wire from the switch of fires of a backing.
22. To take a spring zashchedka and to disconnect a coupling cable from forks of switching off of coupling.
23. To remove a sheet partition of a case of the coupling, located between the block of cylinders of the engine and a transmission.
24. To unscrew the remained two bolts of fastening of a starter and to remove a starter.
25. To unscrew 3 bolts of fastening of a case of coupling to the block of cylinders of the engine.
26. To disconnect a transmission from the engine and to take it from below the car.

Installation

PERFORMANCE ORDER
1. To delay forks of switching off of coupling back and to fix them a wire in this situation.
2. To cover with a thin layer of special Ford greasing (N 5021439) of a shlitsa of primary shaft.
3. To attach a transmission to the block of cylinders of the engine (3 bolts).
4. To insert into openings two bolts of fastening of a starter.
5. To establish a sheet partition between the block of cylinders of the engine and a box case.
6. To tighten bolts of fastening of a sheet partition.
7. Then to execute actions in return sequence in relation to process of removal of a transmission, paying attention on:
       – observance of the necessary moments of a tightening of carving connections;
       – transmission filling by necessary amount of the corresponding oil;
       – check of tightness of a transmission.

Prevention

Before installation of the rubber elastic hinge of the driveshaft on a flange of a transmission it is necessary to check, whether hairpins on a flange are correctly fixed. In case of detection that hairpins are turned, them it is necessary to unscrew, clear their carving, to put on a site of the carving which is screwed in in a flange, two drops of the means protecting from unscrewing (for example, Loctite 270) to tighten these bolts in 5 minutes the moment of 80 Nanometers and to wait for 30 minutes for preservative hardening.