GM Service Manual Online
For 1990-2009 cars only

Piston and Connecting Rod Disassemble LDK

Special Tools

    • EN-46745 Piston Clip Retainer Remover/Installer
    • EN-46745-4 Piston Clip Retainer Remover/Installer Adapter

For equivalent regional tools, refer to Special Tools.


    Object Number: 2146337  Size: SH

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

  1. Disassemble the piston rings (1). Use a suitable tool to expand the rings. The piston rings must not be reused.

  2. Object Number: 2146338  Size: SH

    Note: 2 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  (1) and the EN-46745-4 adapter .

  4. Object Number: 2146339  Size: SH
  5. Remove the piston pin (1) and connecting rod (3) from the piston (2).

Piston and Connecting Rod Disassemble LTD

Special Tools

EN-46745 Piston Pin Retainer Remover and Installer

For equivalent regional tools, refer to Special Tools.


    Object Number: 2146346  Size: SH

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

  1. Disassemble the piston rings (1-5). Use a suitable tool to expand the rings. The piston rings must not be reused.

  2. Object Number: 2148518  Size: SH

    Note: Two retainers hold the piston pins in place. Ensure that the piston pin is not damaged. Do not reuse the retainers.

  3. Remove the piston pin retainers using the EN-46745 remover  (1).

  4. Object Number: 2148520  Size: SH
  5. Remove the piston pin (1) and the connecting rod (3) from the piston (2).