Piston and Connecting Rod Disassemble

Special Tools

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

For equivalent regional tools, refer to Special Tools .

1. Courtesy of GENERAL MOTORS COMPANY

   WARNING:

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

   Disassemble the piston rings (1, 2, 3, 4, 5). Use a suitable tool to expand the rings. The piston rings must not be reused.

2. Courtesy of GENERAL MOTORS COMPANY

   NOTE:

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

   NOTE:

   Use the appropriate adapter for EN-46745  remover to remove the retainers. The appropriate adapter will fit the piston pin ID and allow the ring to be removed or installed.

   • For LCV/LKW/LD4 piston pin, use EN-46745-2  adapter.
   • For LTG piston pin, use EN-46745-4  adapter.

   Remove the piston pin retainers using the EN-46745  remover (1) and the appropriate adapter. Discard the retainer.

3. Courtesy of GENERAL MOTORS COMPANY

   Remove the piston pin (1) and the connecting rod (3) from the piston (2).