Piston Rings
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.
Check piston rings end gap and side clearance. Check ring bore by depressing ring into cylinder with an inverted piston. See PISTONS, PINS & RINGS table under ENGINE SPECIFICATIONS. Lubricate pistons and rings with clean oil. Install rings onto pistons. Stagger ring gaps. See Figure.