GM Service Manual Online
For 1990-2009 cars only

Special Tools

EN-46745 Piston Pin Retainer Remover/Installer

For equivalent regional tools, refer to Special Tools.


    Object Number: 2026780  Size: SH

    Warning: Handle the piston carefully. Worn piston rings are sharp and may cause bodily injury.

  1. Disassemble the piston rings from the piston (2). Use a suitable tool to expand the rings. The piston rings must not be reused.
  2. Note: Two retainers hold the piston pins in place. No special tools are required to remove the piston pins. Ensure that the piston pin is not damaged. Do not reuse the retainers.

  3. Remove the piston pin retainers using the EN-46745 remover/installer .
  4. Remove the piston pin (1).
  5. Disassemble the piston from the connecting rod (3).