Piston and Connecting Rod Disassemble

Special Tools 

EN-46745  Piston Pin Retainer Remover and Installer

For equivalent regional tools, refer to Special Tools .

Fig 1: Identifying Piston Rings
Courtesy of GENERAL MOTORS COMPANY
WARNING:

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

1. Disassemble the piston rings (1, 2, 3, 4, 5). Use a suitable tool to expand the rings. The piston rings must not be reused.
Fig 2: View of Piston Pin Retainers
Courtesy of GENERAL MOTORS COMPANY
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.

2. Remove the piston pin retainers using the EN-46745  remover (1).
Fig 3: Identifying Piston Pin And Connecting Rod
Courtesy of GENERAL MOTORS COMPANY
3. Remove the piston pin (1) and the connecting rod (3) from the piston (2).