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) 0.0578 - 0.0582 Inch (in)
Compression (Bottom) 0.0574 - 0.0586 Inch (in)
Oil Ring Side Seal (Snug Fit)
Service Limit 0.006 Inch (in)
MAX.
Ring Gap Compression (Top) 0.010 - 0.030 Inch (in)
Compression (Bottom) 0.010 - 0.030 Inch (in)
Oil Ring (Steel Rail) 0.016 - 0.066 Inch (in)
Side Clearance 1st Ring 0.0015 - 0.0032 Inch (in)
2nd Ring 0.0015 - 0.0035 Inch (in)
Compression Ring to Ring Groove Clearance Top 0.0015-0.0032 Inch (in)
Bottom 0.0023-0.0035 Inch (in)