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 Rings
Piston ring end gap - keystone 0.29-0.55 mm (0.011-0.021 in)
Piston ring end gap - intermediate compression 1.40-1.66 mm (0.055-0.065 in)
Piston ring end gap - oil control 0.24-0.50 mm (0.009-0.019 in)
Piston ring groove width Upper limit - (measured over 2.08 mm [0.082 in] gauge pins) 94.469 mm (3.719 in)
Piston ring groove width Replacement limit - (measured over 2.08 mm [0.082 in] gauge pins) 94.290 mm (3.712 in)