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

Piston Ring (Compression) Side Clearance (Top Ring) Keystone - Type Ring
Side Clearance (Second Ring) 0.0015 - 0 - 0031 Inch (in)
Gap (Top Ring) (1 - 6) 0.0100 - 0.0224 Inch (in)
Gap (Top Ring) (7 - 8) 0.0115 - 0.0240 Inch (in)
Gap (Second Ring) (1 - 6) 0.0229 - 0.0345 Inch (in)
Gap (Second Ring) (7 - 8) 0.0245 - 0.0366 Inch (in)
Piston Ring (Oil) Side Clearance 0.0016 - 0 - 0035 Inch (in)
Gap (1 - 6) 0.0084 - 0.0224 Inch (in)
Gap (7 - 8) 0.0100 - 0.0240 Inch (in)