BMW 3 Series E30

since 1983-1994 release

Repair and operation of the car



BMW E30
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engine
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. Exhaust system
+ 8. Transmissions
- 9. Coupling
   9.2. Specifications
   9.3. Coupling check
   9.4. Main cylinder of coupling
   9.5. Coupling pedal
   9.6. The blocking coupling switch
   9.7. Working cylinder of coupling
   9.8. Removal of air from a coupling hydraulic actuator
   9.9. Coupling details
   9.10. Driveshaft
   9.11. Elastic coupling
   9.12. Average support
   9.13. Cardan hinges
   9.14. The forward aligning plug
   9.15. Driveshaft CV JOINT
   9.16. Half shafts
   9.17. CV JOINTS and covers
   9.18. Epiploons of a reducer of a back axis
   9.19. Reducer of a back axis
   9.20. Epiploon of the leading gear wheel of a reducer
+ 10. Brake system
+ 11. Running gear
+ 12. Body
+ 13. Electric equipment
+ 14. Useful tips



9.2. Specifications

GENERAL INFORMATION

Distance from a pedal edge to a partition
235 +10 mm
Beating of a frictional disk
no more than 0,5 mm
Disk thickness
not less than 7,5 mm
Admissible side plays of flanges:
  – Axial side play of a flange of the check point
no more than 0,10 mm
  – Radial side play
      • check point flange
no more than 0,07 mm
      • a reducer flange (it is measured on the aligning fillet)
no more than 0,07 mm
Preliminary tightness of the bearing of an average support (in the direction of a forward part of the car)
4–6 mm
Side play in cardan hinges
no more than 0,15 mm

Inhaling moments (N. of m).

Bolts of fastening of the main cylinder
22
Bolts of fastening of the working cylinder
22
Bolts of fastening of coupling to a flywheel
24
Driveshaft:
  – Bolt of an average fork of the cardan hinge
97
  – Bolts of fastening of an average support
21
  – Blooming plug of the shlitsevy site
10

  – Bolts of fastening of the driveshaft to a flange of a reducer of the back bridge:

      • a nut with a nylon insert
64
      • ridge nut
90
Bolts of the elastic coupling:
  – M10 (class 8,8) 777
48
  – M10 (class 10,9)
64
  – M12 (class 8,8)
81
  – M10 (class 10,9)
100
Half shafts:
  – M10 bolts without kontrovochny tooth
83
  – M10 bolts with kontrovochny tooth:
     • a bolt with internal 6-faced deepening
96
     • bolts with a 4-faced head
100
  – M8 bolts with kontrovochny tooth
64
  – M12 bolts
110
Half shaft nut
200
Nut of a flange of the leading gear wheel of a reducer:
  – M20 bolt
185 (no more) or to tighten before combination of tags
  – M22 bolts
210 (no more) or to tighten before combination of tags