LEMON Manuals: Even more car manuals for everyone
Home >> Porsche >> 2003 >> Cayenne Turbo >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Rear Wheel Suspension, Drive Shafts >> 42 17 55 Replacing bearing for trailing arm - as of MY 2003 (All Models) >> Removing bearing for trailing arm >> Removing bearing for trailing arm

Removing bearing for trailing arm

CAUTION: Increased risk of accidents when working with hydraulic presses - danger of crushing, deformation of components. 
  • Risk of injury if the threaded rod in the tubular piston cylinder breaks because of pressure or traction. 
  • Possible danger of damage or injury. 

→ The worker must always stand away from the direction of pressure or traction on the threaded rod when using the tubular piston cylinder.

→ Position pressure pieces correctly and ensure that they are seated properly.

→ Watch out for falling parts when working with hydraulic presses.

→ Danger of injury and material damage if the wheel carrier is raised incorrectly.

→ Do not damage the brake cover plate.

NOTE:
Fig 1: Release brake caliper and hang at a suitable position in wheel well
GP00010223Courtesy of PORSCHE OF NORTH AMERICA, INC.

1. Release brake caliper and hang at a suitable position in the wheel well. Refer to 47 41 19 Removing and installing rear brake calliper - as of MY 2003 (All Models Except Cayenne S TIO Titan) . Do not open the brake system.

Fig 2: Lower trailing arm fastener at mount
GP00010220Courtesy of PORSCHE OF NORTH AMERICA, INC.

2. Loosen the lower trailing arm at the mount -arrows-  . See Fig 2.

Fig 3: Pressing trailing arm downward
GP00010221Courtesy of PORSCHE OF NORTH AMERICA, INC.

3. Insert tire mounting lever between the wheel bearing housing and the trailing arm. Press the trailing arm down until the bearing is freely accessible. Do not damage the brake cover plate. See Fig 3.

Fig 4: Inserting suitable spacer (e. g. wooden block)
GP00010222Courtesy of PORSCHE OF NORTH AMERICA, INC.

4. Press the lower trailing arm down further until a suitable spacer (e. g. wooden block) can be inserted (makes removal easier). See Fig 4.

Fig 5: Tools for pressing out bearing
GP00010192Courtesy of PORSCHE OF NORTH AMERICA, INC.

5. The pressure pieces and the tubular piston cylinder VAS 6178 are used for removal. No. 13 is screwed into the tubular piston cylinder. No. 2 is screwed on to the threaded rod and positioned in No. 13 for pressing out the bearing.

The pressure pieces are used as follows: See Fig 6.

Get a second worker to help when working on the wheel bearing housing.

Fig 6: Positioning tools for pressing out bearing
GP00010242Courtesy of PORSCHE OF NORTH AMERICA, INC.
Fig 7: Pre-tension pressure pieces slightly to prevent them from slipping out
GP00010224Courtesy of PORSCHE OF NORTH AMERICA, INC.

6. Position the tubular piston cylinder and pre-tension slightly to prevent the pressure pieces from slipping out of place. Check the position of the pressure pieces again. See Fig 7.

Fig 8: Ensure correct positioning then press out bearing carefully
GP00010225Courtesy of PORSCHE OF NORTH AMERICA, INC.

7. The pressure piece must be positioned correctly on the contact surfaces of the wheel bearing housing. The cut-out in the pressure piece -arrow-  should be used as a viewing window. Now press the bearing out carefully. When doing so, stand to the side of the tubular piston cylinder and make sure that the tubular piston cylinder cannot fall down. See Fig 8.



Fig 1: Bearing removal tools (pressure pieces)
GP00010241Courtesy of PORSCHE OF NORTH AMERICA, INC.
CAUTION: Increased risk of accidents when working with hydraulic presses - danger of crushing, deformation of components. 
  • Risk of injury if the threaded rod in the tubular piston cylinder breaks because of pressure or traction. 
  • Possible danger of damage or injury. 

→ The worker must always stand away from the direction of pressure or traction on the threaded rod when using the tubular piston cylinder.

→ Position pressure pieces correctly and ensure that they are seated properly.

→ Watch out for falling parts when working with hydraulic presses.

→ Danger of injury and material damage if the wheel carrier is raised incorrectly.

→ Do not raise the wheel suspension higher than the normal vehicle position (vehicle resting on wheels).

→ When raising the suspension, use a suitable intermediate layer (hard rubber).

→ Do not damage the brake cover plate.

Fig 2: Axle must be tightened in vehicle position (Dimension -X-)
GP00010437Courtesy of PORSCHE OF NORTH AMERICA, INC.
NOTE:
  • The entire threaded parts of the axle must be tightened in vehicle position. Vehicle position means: vehicle standing on the wheels, or the wheel suspension is raised using a universal vehicle lift. Dimension -X-  from lower edge of wing to middle of axle 506 mm ±10 mm corresponds to vehicle position. See Fig 2.
  • Use an intermediate layer (hard rubber). Do not damage the brake cover plate. 
  • Screws and nuts are Dacromet-coated and must not be greased. 
  • Use new screws and lock nuts. 
  • Observe tightening torques →  42 TW Tightening torques for rear axle - as of MY 2003 (All Models)  . 
Fig 3: Use rubber base between universal jack and wheel carrier
GP00010126Courtesy of PORSCHE OF NORTH AMERICA, INC.

1. To fit the new bearing use the -pressure pieces-  and tubular cylinder VAS 6178. No. 13 is screwed into the tubular piston cylinder. No. 2 is screwed onto the threaded rod and positioned in No. 13 for pressing in the bearing.

The -pressure pieces-  are used as follows:

Get a second worker to help when working on the wheel bearing housing.

Fig 4: Pre-tension pressure pieces slightly to prevent them from slipping out
GP00010243Courtesy of PORSCHE OF NORTH AMERICA, INC.
Fig 5: View of tubular piston cylinder
GP00010227Courtesy of PORSCHE OF NORTH AMERICA, INC.

2. Position the -tubular piston cylinder-  and pre-tension slightly to prevent the pressure pieces from slipping out of place. Check the position of the pressure pieces again.

Fig 6: Ensure correct positioning then press out bearing carefully
GP00010226Courtesy of PORSCHE OF NORTH AMERICA, INC.

3. The pressure piece must be positioned correctly on the sealing surfaces of the wheel bearing housing. Now press the bearing in carefully. When doing so, stand to the side of the tubular piston cylinder and make sure that the tubular piston cylinder cannot fall down. Maximum assembling force must not exceed 30 KN at the stop.

Press the bearing in until it is enclosed evenly by the rubber lip.

4. If the bearing for the axle strut is fitted cleanly, install the wheel bearing housing in the bottom axle strut.

scientia non olet · About LEMON Manuals