Piston Ring: Service and Repair

1. Always use a piston ring expanding tool to install rings on a piston.

NOTE: After any refinishing operation, allow cylinder bore to cool. Make sure piston and bore are clean and dry before checking piston fit. Always clean the cylinder bore thoroughly with detergent and water solution.

2. If installing new rings in a used cylinder that has not been refinished, remove the cylinder wall glaze using only spring-loaded Engine Cylinder Hone Set T73L-6011-A. De-glaze only if there is no visible sign of cross-hatch markings on the cylinder wails.
3. Piston rings should be staggered on the piston to make sure the piston ring end gaps are NOT aligned.

CAUTION: Piston rings should not be transferred from one piston to another, regardless of mileage or piston ring failure may occur.

4. Replace all rings that are scored, broken, chipped or cracked. Check the end gap and side clearance.