Piston Ring: Service and Repair

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





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

CAUTION: Use a piston ring expander to install the piston rings. The rings may be damaged if expanded more than necessary.

2. Install the following components of the oil control ring assembly (bottom ring):
a. The expander
b. The lower oil control ring
c. The upper control ring
3. Install the lower compression ring (second ring). Place the manufacturer's mark facing up.
4. Install the upper compression ring (top ring).