Installing Front Wheel Bearing

Information 

• The wheel bearing must not come into contact with magnetic objects (e.g., magnetic screwdriver, magnet). 
• Screws and nuts are coated and must not be greased. 
• Grease the toothing of the drive shaft slightly with aluminum paste Optimoly TA. 
• Drive shafts must not be left hanging from the joint stop! Tie up. 
• Use new screws and fastening nuts. 
• Observe correct tightening torques. 

  > 4X00IN TIGHTENING TORQUES FOR REAR AXLE

1. Place the wheel bearing -1-  at a centered position under the workshop press ram.
2. Fit the wheel hub -2-  in the wheel bearing.

   When doing so, make sure that the wheel hub is installed at the correct position in the wheel bearing > Pressing in wheel hub. 

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Pressing in wheel hub

3. Position a suitable pressure piece -3-  flat on the wheel hub.
4. Carefully press in the wheel hub until the pressure increases -A-  (check the pressure gauge!).
5. Fit the wheel bearing/wheel hub assembly in the wheel bearing housing and tighten the fastening screws to the

   prescribed tightening torque. > Initial tightening 80 (59 ftlb.) Nm  --

   The fastening screws are tightened to the specified torque angle in Step 8! 

   Information 

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Fitting tool T10206 (shown as an example)

   • Pull in the drive shaft as far as it will go using the > T10206 -fitting tool  .
6. Grease the splines with a little Optimoly TA aluminum paste and fit the drive shaft into the wheel bearing housing.

   Pull the drive shaft into the wheel bearing housing.

7. Grease the mounting-face ring of the axle nut with a little Optimoly TA aluminum paste. Fit the axle nut.
8. Following installation, the fastening screws still have to be tightened to the specified torque angle. 

   Proceed as follows:

   1. 8.1  Mark one tooth of the fastening screw and the wheel bearing housing -A-  .

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Marking fastening screw

   2. 8.2  Starting from the marked tooth, count off four teeth anti-clockwise and also mark this tooth -B-  .
   3. 8.3  Tighten the fastening screw -A-  until the second marking -1-  is aligned with the marking -2-  on the wheel bearing housing.

      This corresponds to > Final tightening + 120°  --

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Final tightening for fastening screw on wheel bearing