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, Engine

Piston ring groove clearance Top 0.03 - 0.07 mm
2nd 0.02 - 0.06 mm
Piston ring end gap Top ring Standard 0.20 - 0.35 mm
Limit 0.7 mm
2nd ring Standard 0.35 - 0.50 mm
Limit 0.7 mm
Oil ring Standard 0.20 - 0.70 mm
Limit 1.8 mm