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

Groove Clearance
First 0.050-0.085 mm (0.0020-0.0033 inch)
Second 0.050-0.090 mm (0.0020-0.0035 inch)
Oil (max.) 0.20 mm (0.008 inch)
Ring Gap
First 0.15-0.36 mm (0.006-0.014 inch)
Second 0.50-0.71 mm(0.0197-0.0280 inch)
Oil 0.25-0.75 mm (0.0098-0.0500 inch)