Piston, Connecting Rod, and Bearing Removal

Tools Required 

J 24270  Ridge Reamer

1. Rotate the crankshaft to place the piston at the bottom of the piston stroke.
2. Place a cloth on top of the piston.
3. Use the J 24270  to remove the ridge at the top of the cylinder bore.
   Fig 1: Removing Cylinder Bore Ring Ridge

   Courtesy of GENERAL MOTORS CORP.
4. Remove cloth.
5. Remove cutting debris from the cylinder and piston.
6. Remove the connecting rod cap bolts. Set the bolts aside for use in plastic gauging if needed. New bolts will be used for final assembly.
7. Remove the connecting rod cap.
   Fig 2: View Of Connecting Rod Cap & Bearing Insert

   Courtesy of GENERAL MOTORS CORP.
8. Remove the bearing insert from connecting rod.
9. Push piston assembly out of cylinder.
   Fig 3: View Of Piston Assembly

   Courtesy of GENERAL MOTORS CORP.
10. Reassemble the connecting rod bearing, cap, and bolts upon removal.