Removing And Installing Valve (Steel Valve) (Turbo II Wheel): Removal

Unscrew valve cap.
Undo fastening nut -2- . When undoing the fastening nut -2- , counter with a screwdriver in the valve foot. There is a slit in the valve foot to aid countering. Remove disc -3- and O-ring -4- . Pull out valve -5- . See Fig 1.

Fig 1: Identifying Valve Components
Courtesy of PORSCHE OF NORTH AMERICA, INC.