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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1353 (Engine Mechanical - 4.3L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Piston, Connecting Rod, and Bearing Removal >> Tools Required

Tools Required

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Use the J 24270  in order to remove the cylinder ring ridge.
    1. 1.1. Turn the crankshaft until the piston is at the bottom of the stroke.
    2. 1.2. Place a cloth on top of the piston.
    3. 1.3. Use the J 24270  to remove all of the cylinder ring ridge.
    4. 1.4. Turn the crankshaft so the piston is at the top of the stroke.
    5. 1.5. Remove the cloth.
    6. 1.6. Remove the cutting debris.
    Fig 1: Remove Cylinder Ring Ridge Using J 24270
    G02106177Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Place matchmarks or numbers on the connecting rods and the connecting rod caps.
  2. Remove the connecting rod nuts.
  3. Remove the connecting rod cap.
    Fig 2: Removing Connecting Rod Nuts & Caps
    G02106178Courtesy of GENERAL MOTORS CORP.
  4. Use the J 5239  in order to protect the crankshaft journals and remove the connecting rod and the piston out of the top of the engine block.
    Fig 3: J 5239 (Connecting Rod Bolt Guide Set)
    G02106179Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Always assemble the connecting rod caps to the matching connecting rods.
  5. Remove the connecting rod bearings.
    • Keep the connecting rod bearings with the original connecting rod and connecting rod cap.
    • Wipe the oil from the connecting rod bearings.
    • Wipe the oil from the crankpins.
    Fig 4: Removing Connecting Rod Bearings
    G02106180Courtesy of GENERAL MOTORS CORP.
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