Removing and installing valve stem seal: Installation
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2005 Porsche 911, 2004 Porsche 911, 2003 Porsche 911, 2002 Porsche 911, and 2001 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
Fit original valve spring support disc. Slide plastic assembly sleeve ( "PHI" 6 mm) onto valve stem. Oil sealing lip and seating surface of valve stem seal, put on by hand and, with assembly mandrel (VW special tool 3365), gently tap as far as the stop on the valve guide. Remove plastic sleeve.