E30 series BMW 3

since 1983-1994 of release

Repair and car operation

+ 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 switch of coupling
   9.7. Working cylinder of coupling
   9.8. Air removal from a coupling hydraulic actuator
   9.9. Coupling details
   9.10. Driveshaft
   9.11. Elastic coupling
   9.12. Average support
   9.13. Kardannye hinges
   9.14. The forward aligning plug
   9.15. Driveshaft CV JOINT
   9.16. Semi-axes
   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 a leading gear wheel of a reducer
+ 10. Brake system
+ 11. Running gear
+ 12. Body
+ 13. Electric equipment
+ 14. Good advice


9.14. The forward aligning plug


The aligning plug (arrow)

The aligning plug (arrow) is pressed in a forward end face of the driveshaft. At wear of the plug from a forward part of a shaft the increased noise is listened.

The correct position of the aligning plug after a press fitting

And = 4,5 mm

Check and replacement

1. For check of a condition of the plug shake the driveshaft in the cross-section direction, having unscrewed bolts and nuts of fastening of the elastic coupling to a flange of a shaft of a check point. If it is felt appreciable люфт, the plug replace.

On a part of cars the plug is closed by a dustproof cover which is sometimes deformed at driveshaft removal. It is not necessary to consider damage of a cover as a consequence of wear of the plug, cover damage also does not affect a condition of the aligning plug.

2. Remove the driveshaft.
3. Remove the plug from the driveshaft with hydroblow, having filled with dense greasing a cavity of the plug and having struck on an opravka in diameter about 14 mm, inserted into the plug.
4. Grease the new plug with molybdenic greasing and press in the driveshaft. After a press fitting the edge of the plug should defend from a driveshaft end face on 4,5 mm.