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) 0.0575 - 0.0587 Inch (in)
Compression (Bottom) 0.0575 - 0.0587 Inch (in)
Oil Ring Side Seal - Snug Fit
Service Limit 0.006 Inch (in)
MAX
Ring Gap Compression (Top) 0.01 - 0.02 Inch (in)
Compression (Bottom) 0.01 - 0.02 Inch (in)
Oil Ring (Steel Rail) 0.010 - 0.049 Inch (in)
Side Clearance 1st Ring 0.0012 - 0.0031 Inch (in)
2nd Ring 0.0012 - 0.0031 Inch (in)