Assembly Overview - Cardan Shafts

Cardan shafts:

Fig 1: Overview Of Rear Cardan Shafts Assembly Components Location With Torque Specification

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Assembly overview - cardan shafts

1	Front final drive
2	Front cardan shaft
3	Transmission with transfer gear
4	Transmission end damper
5	Rear cardan shaft
6	Rear final drive
7	Tunnel support
8	Screw securing damper to transfer gear > Tightening torque 32 (24 ftlb.) Nm -- Dang --
9	Screw securing centre bearing to body/replace > Initial tightening 20 (15 ftlb.) Nm -- Dang -- > Final tightening + 90° -- Dang --
10	Screw securing tunnel support to body > Tightening torque 60 (44 ftlb.) Nm -- Dang --

Important notes:

The cardan shaft must not be repaired.
Do not kink the rear cardan shaft; only store and transport it in elongated position.
Set rear cardan shaft with the holder down facing upwards.
Mark the position of all parts in relation to each other before removal.
Re-install at the same position (possible bearing damage and humming noise due to imbalance if not re-installed at the same position.

Information

Do not carry out any repair work on the cardan shaft.
Set rear cardan shaft with centre bearing holder down facing upwards.
Mark the position of all parts in relation to each other before removal.
Re-install at the same position (possible bearing damage and humming noise due to imbalance if not reinstalled at the same position).
The help of another person is required.

Unscrew the heat shield -1- and heat shield holder -2- from the tunnel support and remove the tunnel support.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Removing heat shield and holder
Unscrew screws -Arrows- and remove damper.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Screws on damper
Mark the installation position of the cardan shaft -arrow- on the transfer gear and on the rear final drive using a colored pen. ¹⁾

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Marking installation position of cardan shaft
1. The final drives and cardan shafts are paired in the production process, so it is important to maintain the original position.
Remove tunnel support.
Press the cardan shaft off the transfer gear journal and rear final drive using a mounting lever -A- .
(Use a commercially available mounting lever that is about 600 mm long, e.g. Hazet 652)

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Pressing off cardan shaft
Screw off centre bearing holder -1- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Pressing off centre bearing holder
NOTE:
NOTIFICATION
Incorrect handling of cardan shaft
- Risk of damage to the cardan shaft
- Risk of damage to the centre bearing
- Humming noises caused by defective centre bearing
  → When one of the two flanges on the cardan shaft has been released, relieve the tension on the centre bearing.
  
  → Follow the recommended procedures during installation, otherwise the position of the cardan shaft in its original place is no longer guaranteed.
  
  → Do not kink the cardan shaft (bend by max. 10°); only store and transport it in elongated position.
Information

The help of another person is required.
Pull the cardan shaft off both journals and remove in a downward direction.
Set down the cardan shaft with the centre bearing holder facing upwards.