GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1948716  Size: SH
  1. Install the piston rings.
  2. • Insert into the pistons with piston ring wrench and "TOP" pointing upwards.
    • Set the piston ring gap.
       - First piston ring (right-hand ring) in position (1)
       - Second piston ring (minute ring) in position (2)
       - Interim ring of oil scraper ring in position (3), steel band rings of oil scraper ring in position (4 and/or 5)

    Note: Note installation position of the piston in respect of the connection rod.

  3. Attach the piston to the connection rod.
  4. • Press the piston pin into the piston and the connection rod by hand.
    • Insert the retainer in the annular groove on the piston.
    • Ensure the retainer is firmly seated in the groove.
  5. Install the piston with connection rod. Refer to Piston, Connecting Rod, and Bearing Installation.