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 logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Piston Ring

Piston Rings End Gap 1st Comp. Ring Standard 0.300-0.400
Limit 1.0
2nd Comp. Ring Standard 0.450-0.600
Limit 1.2
Oil Ring Standard 0.150-0.450
Limit 1.05
Ring Clearance Compression Ring Standard 0.025-0.065
Limit 0.1