Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Piston Ring: Service Precautions

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

NOTE:
Ring Expander
Always use a piston ring expanding tool to install rings on a piston.

Cylinder De-Glaze
If installing new piston rings in a used cylinder that has not been refinished, remove the cylinder wall glaze only using spring-loaded Engine Cylinder Hone Set T73L-6011-A. Remove only if there is no visible sign of cross-hatch markings on the cylinder walls.