Installing Double Sealing Ring

Bearing ring and spacer ring: 

1. Bearing ring
2. Spacer ring
   Fig 1: Identifying Spacer Ring And Bearing Ring

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Assembly Tool For Double Sealing Ring: 

1. Pressure Piece 9358 
2. Double sealing ring
3. Assembly Fixture 9359 
   Fig 2: Identifying Double Sealing Ring Assembly Tool

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Assembly Tool Protective Sleeve, Two-Piece 9357 For Long Flanged Shaft: 

1. Protective sleeve
2. Storage and transport protection
3. Locking screw
4. Mounting cone
   Fig 3: Identifying Long Flanged Shaft Protective Sleeve

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Information 

• Check that the double sealing ring is seated correctly on the tool. 
• The groove in the special tool must fit completely in the larger sealing ring. 
• The sealing ring is fitted dry. Do not touch the sealing lip! 

1. Slide double sealing ring -2-  onto the pressure piece -1-  .
   Fig 4: Identifying Double Sealing Ring On Pressure Piece 9358

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. Fit double sealing ring.
   1. 2.1. Position assembly fixture -1-  with pressure piece -2-  and double sealing ring -3-  (-arrow-  ).
      Fig 5: Positioning Assembly Fixture With Double Sealing Ring

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   2. 2.2. Secure the assembly fixture -1-  to the housing flange using two aluminum screws -2-  .
      Fig 6: Fitting Assembly Fixture And Screwing In Double Sealing Ring

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   3. 2.3. Screw in the pressure piece with double sealing ring clockwise as far as it will go -arrow-  .
3. Leave the assembly fixture attached for three minutes! 
   1. 3.1. Remove assembly fixture.
   2. 3.2. The sealing ring must end flush with the "aluminum edge".

      Information 

      • Be careful with the spacer ring behind the bearing ring during removal and installation. 
      • The original bearing ring must be re-installed. 
4. Insert spacer ring -2-  with bearing ring -1-  .
   Fig 7: Identifying Bearing Ring And Spacer Ring

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Information 

   • Replace circlips on the halfshaft flanges. 
   • Carefully slide in the long halfshaft flange, keeping it straight at all times. 
5. Install the long flanged shaft -1-  with a new circlip -2-  .
   1. 5.1. Slide protective sleeve -3-  onto the long flanged shaft.
      Fig 8: Identifying Long Flanged Shaft, Protective Sleeve And Circlip

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   2. 5.2. Carefully slide in the flanged shaft -1-  with protective sleeve -2-  (-arrow-  ), making sure that the oil baffle plate is not pushed out on the other side.
      Fig 9: Sliding In Long Flanged Shaft

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   3. 5.3. Secure the flanged shaft -1-  with an O-ring -2-  .
      Fig 10: Identifying Long Flanged Shaft And O-Ring

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
6. Re-assemble the transmission.
   1. 6.1. Insert the differential.
7. Insert housing cover for differential with a new O-ring. Check that it is seated correctly.

   Grease the O-ring with Kluber Syntheso Glep.  (Part No. 000.043.204.68)

8. Tighten new aluminum screws uniformly.

   Information 

   • The aluminum screws for the differential housing cover must be replaced. 
   • The aluminum screws for the Porsche Doppelkupplung (PDK) must be tightened using the yield -point- controlled tightening method. 
   • Special tool Electronic Torque Wrench 9768 is used for this. 
   • To ensure that the screws are tightened uniformly, the corresponding tightening setting "light, medium or hard" must always be used. 
9. Tighten aluminum screws according to the specified tightening sequence (yield-strength procedure) using special tool Electronic Torque Wrench 9768  .

   → Tightening torque: 6 Nm (4.5 ft. lb.) 

   Fig 11: Differential Cover Screws Tightening Sequence

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
10. Fit the short halfshaft flange with a new circlip.