Bearing 4 R/R

Special Tools

  • P 27 a Assembly plate for removing and installing Bearing 4
  • P 73 Installer for oil seal at Bearing 4


  • 1. Remove timing gear cover (45 En).
  • 2. Deform old oil seal by striking it with hammer and punch through recess slot in seal seat.
  • 3. Pry old oil seal out with a screwdriver or similar tool.
  • 4. Withdraw oil deflector.
  • 5. Remove bearing set screw.
  • 6. Remove burr. if any. from recess in oil seal seat.
  • 7. Heat timing gear cover to approx. 60 deg C (140 deg F) and remove Bearing 4 using punch P 27a of the assembly plate set.


  • 1. Inspect timing gear cover for absence of damage.
  • 2. Inspect Bearing 4 seating bore in timing gear cover.
  • 3. Turn set screw of Bearing 4 until the tip of the screw projects approx. 1 mm into the bearing seating bore in timing gear cover.
  • 4. Heat timing gear cover to approx. 160 deg C (320 deg F) and install Bearing 4 using special tool P 27a.
  • 5. Tighten the bearing set screw; make sure that the screw is not too long, such as to exert pressure upon the bearing.
  • 6. Insert oil deflector.
  • 7. Install oil seal using P 73 installer.


When installing Bearing 4, proceed quickly since the bearing insert will begin to expand immediately upon contact with the hot timing gear cover and may, possibly. bind in the process.
Last modified: Mon, 17 Jan 2005


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