Removing Rubber Mounting For Front Final Drive

Information 

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Foot pump

• The spindle T10254/5 has a rated load of 9 tonnes and must only be loaded with a pressure of 200 bar. 
• Use a protective helmet with a visor. 
• Use protective gloves. 
• Do not actuate the> VAS 6179 - foot pump pedal at the same time as the pressure relief valve -Arrow-  .
• Connect> VAS 6179/1 - pressure gauge with connecting line and - read off the pressure. 

1. Remove stone guard -1-  .
   1. 1.1  Unclip clips -2-  .
   2. 1.2  Remove stone guard -1-  .

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      Stone guard

2. Support rear axle housing -1-  .
   1. 2.1  > VAS 6931 - Engine and gearbox jack  must be positioned under the rear axle housing -1-  .
   2. 2.2  Place a suitable piece of wood -2-  underneath.
   3. 2.3  Also secure the rear axle housing -1-  with > 9454 - strapping belts. 

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   Rear axle housing

3. Unscrew screws on rear axle housing at the front -1-  by 4 cm.

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   Screw on rear axle housing, front

4. Lower the rear axle housing -1-  .
   1. 4.1  Unscrew screw -2-  .
   2. 4.2  Lower the rear axle housing by 4 cm -1-  using > VAS 6931 - engine and gearbox jack. 
   3. 4.3  Press differential -3-  up over the cardan shaft.

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      Rubber mounting for front final drive

5. Check that the T10254/5 - spindle  can be inserted through the through-bore in the inside of the rubber mounting for the front final drive.
   WARNING: Risk of damage or injury from foreign bodies flying around during grinding, drilling and milling

   • Risk of eye injuries

     → Wear protective goggles.

6. If the T10254/5 - spindle cannot be inserted through the through-bore in the inside of the rubber mounting for the front final drive: 

   Drill out rubber mounting for front final drive -2-  .

   1. 6.1  Place a suitable object between the rubber mounting for front final drive -2-  and final drive so as not to damage the threaded bore on the rubber mounting for front final drive.
   2. 6.2  Position drill -1-  with drill bit on the rubber mounting for front final drive -2-  and drill out the through-bore in several steps.

      Step 1, drill bit diameter: 11 mm

      Step 2, drill bit diameter: 11.5 mm

      Step 3, drill bit diameter: 12 mm

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      Rubber mounting for front final drive

      Information 

      If necessary, the support may have to be screwed out and the support T10205/13  with the small  internal diameter from the > VAS 6178 - Hydraulic cylinder  may have to be screwed in instead.

      Information 

      You will need a second mechanic to help you with this step.

7. > T10254 - Assembly fixture  must be fitted.
   1. 7.1 Fit T10254/5 - spindle -8-  with pin facing downwards into rubber mounting for front final drive.
   2. 7.2 Fit T40186/1 - pressure piece -2-  on rubber mounting for front final drive.
   3. 7.3  Screw on T10254/4 - nut -1- . 

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Assembly fixture on rubber mounting for front final drive

   WARNING: Hold the hydraulic cylinder -VAS 6178- tightly while pressing out components.

   • The rubber mounting suddenly becomes loose. Danger of injury if the tools fall down.

   Information 

   When removing and pressing in the differential bearing, make sure that T10254/5 - spindle  is not touching the threaded bore of the differential or adjacent components.

8. > T10254 - Assembly fixture  must be fitted on rubber mounting for front final drive. Then, press out rubber mounting for front final drive.
   • T10254/4 - Nut -1- 
   • T40186/1 - Pressure piece -2- 
   • Rear axle housing -3- 
   • T40033/3 - Pipe -4- 
   • T10205/4 - Support ring -5- 
   • VAS 6178 - Hydraulic cylinder-7- 
   • T10254/4 - Nut -7- 
   • T10254/4 - Spindle -8- 

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   Assembly fixture on rubber mounting for front final drive

   Information 

   Mountings that have been pressed out must not be re-used.

9. Replace rubber mounting for front final drive.