Valve (Steel Valve) (Turbo II Wheel)

Removing and Installing Valve (Steel Valve) (Turbo II Wheel)

General

The steel valve must always be replaced when changing a tire.

CAUTION:
Loss of tire pressure if the installation position of the components is not observed and the original Porsche SP parts are not used when installing the steel valve.
- Fix disc into the correct position using the O-ring and the fastening nut.
- Only use the original valve cap.


Notes on Removal and Installation





- Do not use commercially available steel valves. The Porsche valves (part nos. 993.361.073.00) are shorter (dimension X). -Dimension X- is approx. 43 mm for the Porsche version.
- The complete valve only is available as a spare part. See Spare Parts catalogue.
- The valve insert is commercially available.





- The valve cap -1- is provided with a seal (air-tight seal). Do not confuse with a commercially available valve cap. The shaft of the fastening nut -2- must point towards the valve toot because otherwise the valve will not be secure.





- Position of the disc must be observed -3- -arrow-. If the disc is fitted incorrectly, the O-ring will be damaged -4-. Serious damage is possible as a result.


Removal





1. Unscrew valve cap.

2. Undo fastening nut -2-. When undoing the fastening nut -2-, counter with a screwdriver in the valve toot. There is a slit in the valve foot to aid countering. Remove disc -3- and O-ring -4-. Pull out valve -5-.


Installation





1. Insert valve -5- with the fitted foot seal -(6)- into the wheel. The foot seal -6- is always fitted with new valves.





2. Place O-ring -4- carefully on to the valve from the outside. Mount disc -3- in the correct position -arrow-. The O-ring then lies in the disc depression.





3. Install the fastening nut -2- with the shaft facing towards the valve foot. Tighten the fastening nut -2- with a torque wrench to 3.5 (2.5 ftlbs.) ± 0.5 Nm (0.5 ftlb.). When tightening, counter with a screwdriver on the slot of the valve foot.