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, Engine

Number of Rings 2 Compression, 1 Oil
Top Ring End Gap (STD) 0.20-0.35 Millimeter (mm)
Top Ring End Gap (Limit) 1.0 Millimeter (mm)
Second Ring End Gap (STD) 0.37-0.52 Millimeter (mm)
Second Ring End Gap (Limit) 1.0 Millimeter (mm)
Oil Ring End Gap (STD) 0.20-0.50 Millimeter (mm)
Oil Ring End Gap (Limit) 1.0 Millimeter (mm)
Clearance Between Ring and Groove, Top Ring (STD) 0.040-0.080 Millimeter (mm)
Clearance Between Ring and Groove, Top Ring (Limit) 0.15 Millimeter (mm)
Clearance Between Ring and Groove, Second Ring (STD) 0.030-0.070 Millimeter (mm)
Clearance Between Ring and Groove, Second Ring (Limit) 0.15 Millimeter (mm)