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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 994 (Engine Mechanical - 6.6L (LLY)) >> 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 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.

Tools Required 

J 43654  Piston Pin Retainer Clip Remover/Installer

  1. Mark orientation of the piston to the connecting rod.
  2. Fig 1: Marking Orientation Of Piston To Connecting Rod
    GM663138Courtesy of GENERAL MOTORS CORP.
  3. Remove the piston rings using a piston ring expander.
  4. Fig 2: Removing & Installing Piston Rings Using Piston Ring Expander
    GM637689Courtesy of GENERAL MOTORS CORP.
  5. Remove the connecting rod bearing inserts.
  6. Fig 3: View Of Connecting Rod Bearing Inserts
    GM663781Courtesy of GENERAL MOTORS CORP.
  7. Use J 43654  to remove the piston pin retainers.
  8. Fig 4: View Of Piston Pin Retaining Clips
    GM637736Courtesy of GENERAL MOTORS CORP.
  9. Remove the piston pin. The pin is a full-floating style and should slide from the piston.
  10. Remove the piston from the connecting rod.