Special Tools

WARNING: This page is about a different car, the 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

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

For equivalent regional tools, refer to Special Tools .

Fig 1: Piston Rings

Courtesy of GENERAL MOTORS CORP.

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

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

Fig 2: Piston Pin Retainer Remover And Installer

Courtesy of GENERAL MOTORS CORP.

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.

Remove the piston pin retainers using the EN-46745: remover/installer and the EN-46745-4: adapter.

Fig 3: Piston Pin

Courtesy of GENERAL MOTORS CORP.

Remove the piston pin.