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	Ring Width	Upper Compression Ring	0.30 - 0.50 Millimeter (mm)
		Lower Compression Ring	0.30 - 0.50 Millimeter (mm)
		Oil Control Ring	0.40 - 1.40 Millimeter (mm)
	Ring Groove Width	Upper Compression Ring	1.484 Millimeter (mm)
		Lower Compression Ring	1.734 Millimeter (mm)
		Oil Control Ring	2.905 Millimeter (mm)