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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1154 (Engine Mechanical (Repair Instructions 3 Of 5) - 3.6L (Ly7)) >> Repair Instructions (Off-Vehicle Repair Instructions - Part 2) >> Piston and Connecting Rod Assemble >> Piston and Piston Pin Installation Procedure

Piston and Piston Pin Installation 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 Pin
    GM1210818Courtesy of GENERAL MOTORS CORP.
    IMPORTANT:
    • The arrow located on top of the piston must point toward the front of the engine.
    • The connecting rod is non-directional and may be assembled/reassembled to the piston in either direction.
  1. Lubricate the piston pin bores in the piston and the connecting rod with GM prelube lubricant GM P/N 1052367 (Canadian P/N 992869) or equivalent.
  2. Assemble the piston and piston pin to the connecting rod. Properly orient the piston when reusing a marked connecting rod.
  3. Align the piston pin bore with the connecting rod pin bore.
  4. Slide the piston pin into the piston and the connecting rod.
  5. Fig 2: Identifying Piston Pin Retainers Removal Access Notch
    GM1210796Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: New piston pin retainers must be used. Never reuse the piston pin retainers.
  6. Install NEW piston pin retainers using the J 43654  . Align the J 43654  to the notch (1) in the piston.
  7. Ensure that the piston pin retainers are fully seated in their grooves.
  8. Repeat these procedures for the remaining pistons.