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, Engine

Piston Ring Groove Width - First 1.2-1.25 mm (0.048-0.049 inch)
Piston Ring Groove Width - Second 1.53-1.55 mm (0.060-0.061 inch)
Piston Ring Groove Width - Oil Control 3.03-3.055 mm (0.119-0.120 inch)