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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1268 (Engine Mechanical - 4.8L, 5.3L, 6.0L Or 6.2L (3 Of 5)) >> Off-Vehicle Repair Instructions (1 Of 3) >> Piston, Connecting Rod & Bearing Removal >> Removal Procedure

Removal Procedure

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    Fig 1: Removing Cylinder Ridge Using J 24270
    GM11497Courtesy of GENERAL MOTORS CORP.
  1. Use the J 24270  in order to remove the cylinder bore ring ridge, if required. See Special Tools .
    1. Turn the crankshaft until the piston is at the bottom of the stroke.
    2. Place a cloth on top of the piston.
    3. Use the J 24270  , or equivalent, in order to remove a cylinder ring ridge. See Special Tools .
    4. Turn the crankshaft so the piston is at the top of the stroke.
    5. Remove the cloth.
    6. Remove the cutting debris from the cylinder and piston.
    2. Fig 2: Matchmarks On Connecting Rods & Caps
    GM1552546Courtesy of GENERAL MOTORS CORP.
  2. Using a paint stick or etching tool, place matchmarks or numbers on the connecting rods and the connecting rod caps. The connecting rods and caps MUST be assembled to their original position and direction.
    • A stamping mark on the side of the connecting rod, at the crankshaft journal, may affect component geometry.
    • Mark the top of the piston to the specific cylinder bore.
    3. Fig 3: View Of Connecting Rod Bolt, Cap & Bearing
    GM1552547Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Mark, sort, or organize the connecting rod bearings so they may be installed to their original position and location. The connecting rods and the bearing caps are NOT interchangeable. Refer to Separating Parts .
  3. Remove the connecting rod bolts (102), cap (103) and bearing (104).
    4. Fig 4: View Of J 41556 & Connecting Rod
    GM1552499Courtesy of GENERAL MOTORS CORP.
  4. Install the J 41556  to the connecting rod. See Special Tools .
    5. Fig 5: View Of Piston Assembly & J 41556 From Cylinder Bore
    GM1552548Courtesy of GENERAL MOTORS CORP.
  5. Using a hammer, tap lightly on the end of the J 41556  in order to remove the piston and connecting rod assembly from the cylinder bore. See Special Tools .
  6. Remove the J 41556  . See Special Tools .
    7. Fig 6: View Of Piston, Connecting Rod & Bearing Assembly
    GM1552501Courtesy of GENERAL MOTORS CORP.
  7. Upon removal of the piston and connecting rod assembly, assemble the connecting rod cap and bolts onto the matching connecting rod.
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