Porsche 996 TT Repair Manual page 348

• Do not use commercially available steel valves!
The Porsche valves (part No. 993.361.073.00) are shorter; dimension −X− . Dimension −X− is 43 mm
•
for the Porsche version!
1. Free the wheel from the abraded rubber particles and check for damage.
2. A new valve must always be fitted. Steel valves −1− are used for 18−inch Turbo II wheels and
rubber valves −2− for 18−inch Turbo−Look II wheels.
3. Coat the wheel and tyre with tyre mounting paste − TIP TOP Universal, order No. 593 0601 − or
Contifix.
4. Place the tyre in the correct position on the wheel. Push in mounting arm and position on top of the
rim flange.
5. Guide the tyre bead through the assembly head. Fit the tyre bead in the deep bed by turning the wheel
to the right.
6. At the start of the mounting process of the second tyre bead, the mounting arm should be positioned
opposite to the valve. This prevents damage to the valve.
7. Press the second tyre bead onto the wheel as flat as possible and guide through the assembly
head.
8. Insert first holding−down device and position the second holding−down device offset by 90° to
120°. Fit tyre bead in deep bed by turning to the right.
9. Fill tyre with compressed air. At approx. 4.0 bar, the beads should pop over the hump. Coat the tyre
beads with mounting paste again if necessary so that they can pop over easily and gently.
Fitting
einordnung
285