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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1021 (Engine Mechanical - 8.1L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Piston and Connecting Rod Disassemble >> Full-Floating Piston Pin

Full-Floating Piston Pin

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the connecting rod bearings (3) from the rod (2) and cap (4).
    2. Fig 1: View Of Piston & Connecting Rod Components
    GM1366359Courtesy of GENERAL MOTORS CORP.
  2. Using piston ring pliers, remove the piston rings from the piston.
    3. Fig 2: Removing/Installing Piston Rings
    GM490763Courtesy of GENERAL MOTORS CORP.
  3. Rotate the piston pin retaining clips until the ring end gap is positioned in the cutout area (1) of the pin bore.
    4. Fig 3: View Of Piston Pin Retaining Clip & Cutout Area Of Pin Bore
    GM1366364Courtesy of GENERAL MOTORS CORP.
  4. Remove the clips starting in the cutout area of the pin bore.
    5. Fig 4: Piston Pin Retaining Clips
    GM1366368Courtesy of GENERAL MOTORS CORP.
  5. Remove the pin from the piston and connecting rod.
    6. Fig 5: View Of Piston Pin, Piston, Clips & Connecting Rod
    GM35866Courtesy of GENERAL MOTORS CORP.
  6. The piston and pin are a matched set and are not to be serviced separately. Mark, sort or organize the piston and matching piston pin.
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