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: Specifications

PISTON RING GAP & GROOVE CLEARANCE

Piston Ring End Gap
First Compression Ring 0.150-0.300 mm (0.0059-0.0118 in)
Second Compression Ring 0.300-0.450 mm (0.0118-0.0177 in)
Oil Control Ring 0.250-0.500 mm (0.0098-0.0197 in)

Piston Ring to Groove Clearance
First Compression Ring 0.040-0.095 mm (0.0016-0.0037 in)
Second Compression Ring 0.040-0.095 mm (0.0016-0.0037 in)
Oil Control Ring None - Side Sealing