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Home >> Porsche >> 2016 >> 911 Turbo, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 122 (39 - Final Drive - Differential, Differential Lock -- CARRERA (997)) >> WM 394037 Disassembling And Assembling Differential With Differential Lock (Gt2, Gt2 RS, Gt3 & Gt3 RS) >> Disassembling Differential With Differential Lock >> Dismantling Differential And Differential Lock

Dismantling Differential And Differential Lock

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 Porsche 911, 2012 Porsche 911, 2011 Porsche 911, 2010 Porsche 911, and 2009 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Differential Components
G09825324Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  1. Taper roller bearing (large)
  2. Adjusting shim
  3. Taper roller bearing (small)
  4. Adjusting shim
  5. Screw
  6. Crown wheel
  7. Countersunk screw
  8. Lids
  9. Thrust washer
  10. Cup spring
  11. Outer disc
  12. Inner disc
  13. Thrust ring (outside)
  14. Shaft bevel gear with threaded washer
  15. Bevel pinion
  16. Axle
  17. Thrust ring (inside)
  18. Housing
  1. Clamp differential lock.

    Clamp differential lock using Clamping Jaws 9646  into the vice.

    Fig 2: Clamping Differential
    G09825325Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  2. Mark installation position of cover.

    Mark installation position of cover -8-  relative to the housing for reinstallation.

  3. Remove bearing outer race.
    1. 3.1. Remove left bearing outer race (large).

      Heat cover for differential up to approx. → Temperature: 120°C (248 °F)  and push out left bearing outer race (large).

    2. 3.2. Remove right bearing outer race (small).

      Drive out with aluminum or copper mandrel, changing sides.

  4. Detach taper roller bearing.
    1. 4.1. Detach taper roller bearing (large) -1-  using suitable extractor, Pressure Pieces 9656  and Pressure Piece P254B  .
      Fig 3: Removing Taper Roller Bearing (Large) Crown Wheel
      G09825326Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    2. 4.2. Detach taper roller bearing (small) -3-  using suitable extractor, Pressure Pieces 9656  and Pressure Piece P254B  .
      Fig 4: Pressing Off Taper Roller Bearing (Small)
      G09825327Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  5. Crown Wheel.
    Fig 5: Removing Crown Wheel From Differential Housing
    G09825328Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    1. 5.1. Undo screws -5-  for crown wheel -2-  .
    2. 5.2. Press off crown wheel -2-  from differential housing -1-  .
  6. Remove differential cover.

    Undo countersunk-head screws -7-  , remove cover -8-  and remove all internal parts. Mark thrust rings -13, 17-  for refitting.

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