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

Removal

1. Using a suitable piston ring expander, remove and discard rings.
2. Remove carbon from piston ring grooves.

NOTE: Use an old broken piston ring with a squared off end.

CAUTION: Do not use a wire brush.