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 Compression	Second Groove Side Clearance	0.0008 - 0.0031 Inch (in)
	Second Ring Gap	0.0012 - 0.0177 Inch (in)
	Top Groove Side Clearance	0.0020 - 0.0035 Inch (in)
	Top Ring Gap	0.010 - 0.020 Inch (in)
Piston Ring Oil	Gap	0.010 - 0.030 Inch (in)
	Groove Clearance	0.0005 - 0.0087 Inch (in)