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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 134 (Engine Mechanical - 3.8L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Piston and Connecting Rod Disassemble

Piston and Connecting Rod Disassemble

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION: Handle the piston carefully. Worn piston rings are sharp and may cause bodily injury.
  1. Remove the piston rings. Use a suitable tool to expand the rings. Piston rings must not be reused.
  2. Fig 1: Cleaning The Piston Ring Grooves With Suitable Ring Groove Cleaning Tool
    GM4977Courtesy of GENERAL MOTORS CORP.
    NOTE: When removing or installing the piston pin retainer and piston pin do not damage the piston or the retaining groove in the piston. Damage to the piston or retaining groove can lead to severe engine damage.
  3. Remove the piston pin retaining clips.
  4. Fig 2: View Of Piston Pin, Piston, Clips & Connecting Rod
    GM35866Courtesy of GENERAL MOTORS CORP.
  5. Remove the piston pin.