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Home >> Porsche >> 2003 >> 911 Carrera 4S, Standard >> Repair and Diagnosis >> Suspension >> Wheels & Tire System >> Wheels, Tires, Suspension Alignment - 911 CARRERA (996) >> Tyre mounting for critical wheels/tyre pairs >> Removal

Tyre mounting for critical wheels/tyre pairs: Removal

  1. Clamp wheel.
  2. When pushing off the tyre, ensure that the bead press-off tool is set to the exact inch graduation. If this is not the case, the rim flange may be damaged by the press-off rollers.
    Fig 1: Ensuring That Bead Push-Off Tool Is Set To Exact Inch Graduation
    G03105766Courtesy of PORSCHE OF NORTH AMERICA, INC.
  3. The wheel must be turned anti-clockwise when pressing the tyre off the rim. Otherwise, excessive forces occur on the fastening bolts of the machine which can lead to bolt breakage. The tyre beads can be pressed off at the same time or individually.
  4. Before removing the tyre, coat the tyre bead with mounting paste to facilitate removal.
  5. Put the assembly head on the rim flange. Position the assembly aid. The mounting lever is pushed into the deep bed underneath the first tyre bead, and then guided over the assembly shoe and pushed down.
    NOTE: The mounting lever must be kept at a safe distance from the rim. This prevents damage (scratches, pressure marks) to the rim spokes.
    Fig 2: Lifting Tyre Bead Out Of Rim Bed
    G03105767Courtesy of PORSCHE OF NORTH AMERICA, INC.
  6. Lift the tyre bead out of the rim bed by turning the wheel to the right.
  7. Position the assembly aid for the second tyre bead. Pull the tyre upwards and push it into the rim bed underneath the second tyre bead using the mounting lever. Make sure that the mounting lever is guided correctly (see  5 ). Turn the wheel to the right and remove the tyre.