35. Piston and Connecting Rod Disassemble

Piston and Connecting Rod Disassemble





Important: Certain 6.0 L LQ9 engines will use a full-floating piston and pin design. In those applications, the pin is retained in the piston by retaining clips.

Press Fit Piston Pin
- Tools Required
- J 24086-C Piston Pin Remover/Installer
1. Using piston ring pliers, remove the piston rings from the piston.





2. Install fork insert J 24086-920A into fixture J 24086-10.





3. Install the piston and connecting rod assembly onto J 24086-10.
4. Install J 24086-107 into the piston pin and J 24086-88A through the fixture and into J 24086-107.





Notice: After the installer hub bottoms on the support assembly, do not exceed 35,000 kPa (5,000 psi) pressure, this could cause damage to the tool.

5. Press the piston pin from the piston and connecting rod assembly.

Full Floating Piston Pin





1. Using piston ring pliers, remove the piston rings from the piston.





2. Remove the piston pin retaining clips.
3. Remove the pin from the piston and connecting rod.
4. The piston and pin are a matched set and are not to be serviced separately. Mark, sort, or organize the piston and the matching piston pin.