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Home >> Porsche >> 2023 >> Macan T >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> 39 Final Drive Differential, Differential Lock 2.0L -- 95B - MACAN (95B) >> WM, 396155 Replacing Rubber Mounting For Final Drive >> Replacing Rubber Mounting For Front Final Drive >> Installing Rubber Mounting For Front Final Drive

Installing Rubber Mounting For Front Final Drive

  1. Check whether the T10254/5 - spindle  can be inserted on the new  rubber mounting for front final drive.
    WARNING: Risk of damage or injury from foreign bodies flying around during grinding, drilling and milling 
    • Risk of eye injuries 
      1. → Wear protective goggles.
  2. If the T10254/5 - spindle cannot be inserted through the through-bore in the inside of the rubber mounting for the final drive: 

    Drill out new  rubber mounting for front final drive.

    1. 2.1  Clamp rubber mounting for front final drive -2-  slightly in the vice using protective jaws -1-  , making sure not to damage the outer sleeve of the rubber mounting for front final drive -2-  .
    2. 2.2  Position drill -3-  with drill bit on the rubber mounting for front final drive and drill out the through-bore in several steps.
      1. Step 1, drill bit diameter: 11 mm
      2. Step 2, drill bit diameter: 11.5 mm
      3. Step 3, drill bit diameter: 12 mm
    G15152603Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    New rubber mounting for front final drive

  3. If a bonded rubber mounting for front final drive was installed: 

    Remove all adhesive residue from the bore.

    Information 

    All components must be at room temperature.

  4. Clean new  rubber mounting for final drive and bore.
    1. 4.1  Roughen the bonding area of the rubber mounting for front final drive and bore using a clean 120-grit emery cloth.
    2. 4.2  Clean rubber mounting for front final drive and bore several times using LOCTITE 7063  and wipe dry with a new disposable cloth or paper towel until there is no more dirt on the cleaning cloth.
    3. 4.3  Allow components to dry off for at least 2 minutes.
  5. Apply adhesive LOCTITE 638. 
    1. 5.1  Apply adhesive LOCTITE 638  as a bead -1-  on joint surfaces of rubber mounting for front final drive and bore and press in rubber mounting for front final drive within 4 minutes.
    G15152604Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Adhesive LOCTITE 638

  6. Position rubber mounting for front final drive -1-  with marking -2-  at an angle of 90° with respect to the grooves -3-  .
    G15152605Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Marking on rubber mounting for front final drive

  7. Insert rubber mounting for front final drive in such a way that the marking is pointing exactly in direction of travel.
  8. > T10254 - Assembly fixture  must now be fitted. Then, press in rubber mounting for front final drive > Rubber mounting for front final drive  .
    • T10254/4 - Nut -1- 
    • T40033/7 - Pressure piece -2- 
    • Rear axle housing -3- 
    • Rubber mounting for front final drive -4- 
    • T40186/3 - Thrust washer -5- 
    • T10205/4 - Supporting -6- 
      • VAS 6178 - Hydraulic cylinder-7- 
    • T10254/4 - Nut -8- 
    • T10254/4 - Spindle -9- 
    1. 8.1  Press rubber mounting for front final drive -4-  as far as it will go into the rear axle housing -3-  .
    2. 8.2  Visually inspect the rear axle housing -3-  for paint damage and correct paint damage if necessary.
    3. 8.3  > T10254 - Assembly fixture  must now be removed.
      G15152606Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Rubber mounting for front final drive

      Information 

      The bonded area must not be moved or subjected to mechanical pressure.

  9. Leave pressed-in rubber mounting for front final drive to harden for at least 12 hours at a temperature of at least 20°C.
  10. Remove excess adhesive that has not hardened using a cloth (without cleaner).
  11. Lift up rear axle housing -1-  .
    1. 11.1  Position rear axle housing -1-  using > VAS 6931 - Transmission and Engine Jack  .
    2. 11.2 Fit and tighten new  screw -2-  .
      • Initial tightening 40 Nm (30 ftlb.) 
      • Final tightening + 90° 
    G15152607Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Screw for rubber mounting on front final drive

  12. Replace screws on front rear axle housing
    1. 12.1  Unscrew screws on front rear axle housing -1-  fully.
    2. 12.2  Screw in and tighten new  screws on front rear axle housing -1-  .
      • Initial tightening 115 Nm 
      • Final tightening + 90° 
    G15152608Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Screw on rear axle housing, front

  13. > VAS 6931 - Transmission and Engine Jack  must now be removed.
  14. Install stone guard -1-  .
    1. 14.1  Position stone guard -1-  .
    2. 14.2  Clip in clips -2-  .
    G15152609Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Stone guard

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