Operation CHARM: Car repair manuals for everyone.
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

Compression Ring End Gap 1st Ring Standard 0.300-0.400 mm (0.0118-0.0157 in)
Limit 1.0 mm (0.0394 in)
2nd Ring Standard 0.450-0.600 mm (0.0177-0.0236 in)
Limit 1.2 mm (0.0472 in)
Oil Ring Standard 0.150-0.450 mm (0.0059-0.0177 in)
Limit 1.05 mm (0.0413 in)
Compression Ring Clearance Standard 0.016-0.038 mm (0.0006-0.0015 in)
Limit 0.15 mm (0.0059 in)