Piston, Connecting Rod, and Bearing Removal

Tool Required 

J 24270  Ridge Reamer

1. Remove the piston.
   1. 1.1. Turn the crankshaft until the piston is a bottom dead center.
   2. 1.2. Place a cloth on top of the piston.
   3. 1.3. Perform the cutting operation with the J 24270  .
   4. 1.4. Turn the crankshaft until the piston is at top dead center.
   5. 1.5. Remove the cloth and cuttings.
      Fig 1: Performing Cutting Operation With Ridge Reamer

      Courtesy of GENERAL MOTORS CORP.
2. Remove the connecting rod cap.

   Keep the connecting rod and the connecting rod cap together as mating parts.

   1. 2.1. Check the connecting rod and the connecting rod cap for identification marks.
   2. 2.2. Mark the parts if necessary to keep each connecting rod and cap together.
      Fig 2: Removing Connecting Rod Cap

      Courtesy of GENERAL MOTORS CORP.
3. Remove the connecting rod bearings.
   Fig 3: Removing Connecting Rod Bearings

   Courtesy of GENERAL MOTORS CORP.
4. Remove the connecting rod and the piston.
   1. 4.1. Slide a piece of 9.5 mm (0.375 in) fuel or vacuum hose over each connecting rod bolt. This protects the crankshaft journal during removal.
   2. 4.2. Push the piston out of the bore.
   3. 4.3. After removing the connecting rod and the connecting rod cap, assemble the connecting rod and the connecting rod cap.
      Fig 4: Removing Connecting Rod And Piston

      Courtesy of GENERAL MOTORS CORP.