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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1128 (Engine Mechanical (Repair Instructions 3 Of 5) - 3.6L (Ly7)) >> Repair Instructions (Off-Vehicle Repair Instructions - Part 2) >> Piston and Connecting Rod Disassemble >> Disassembly Procedure

Disassembly Procedure

WARNING: This page is about a different car, the 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Piston Ring Expander
    GM1316504Courtesy of GENERAL MOTORS CORP.
    NOTE: You must use a piston ring expander to remove and install the piston rings. Only expand the rings far enough to fit over the piston lands. If the rings are overexpanded, the top ring will shatter and the others will distort.
  1. Remove the piston rings using a piston ring expander. Place each ring in a clean shop towel for storage.
    2. Fig 2: Identifying Piston Pin Retainers Removal Access Notch
    GM1210796Courtesy of GENERAL MOTORS CORP.
    IMPORTANT:
    • The connecting rod is non-directional and may be assembled/reassembled to the piston in either direction.
    • DO NOT reuse the piston pin retainers.
  2. Using the J 43654  , remove the piston pin retainers by using the removal access notch (1) in the side of the piston. Discard the piston pin retainers.
    3. Fig 3: View Of Piston Pin
    GM1210818Courtesy of GENERAL MOTORS CORP.
  3. Slide the piston pin out of the piston. The piston will disconnect from the connecting rod.
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