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: Specifications

Piston Ring
Ring width
Upper compression ring 0.30-0.50 mm (0.011811-0.019685 inch)
Lower compression ring 0.30-0.50 mm (0.011811-0.019685 inch)
Oil control ring 0.40-1.40 mm (0.015748-0.055118 inch)
Ring groove width
Upper compression ring 1.484 mm (0.058425 inch)
Lower compression ring 1.734 mm (0.0682675 inch)
Oil control ring 2.905 mm (1.1143698 inch)