Valve Stem Oil Seals
WARNING: This page is about a different car, the 1999 Cadillac Catera and 1998 Cadillac Catera. However, it is still accessible from the selected car via links, so may be relevant.
Coat valve stem with clean oil. Install valve spring seat. Install protective sleeve over valve stem (provided with new seals). Using Seal Installer (J41775), install seal. Remove protective sleeve.