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

Ring Width Compression (top) 0.05748 - 0.05866 Inch (in)
Oil Ring side seal-snug fit
Service Limit - side clearance 0.0006 Inch (in)
MAX
Ring Gap Compression (top)(in gauge) 0.00666 - 0.01299 Inch (in)
Compression (bottom) (in gauge) 0.01181 - 0.02165 Inch (in)
Oil Ring (steel rail) (in Gauge) 0.00591 - 0.2559 Inch (in)
Side Clearance 1st Ring 0.00118 - 0.00315 Inch (in)
2nd Ring 0.00118 - 0.00315 Inch (in)