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)

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Piston Ring

DIMENSIONS
End Gap
Standard:
No. 1 0.300 - 0.520 mm (0.0118 - 0.0205 inch)
No. 2 0.450 - 0.670 mm (0.0177 - 0.0264 inch)
Oil 0.150 - 0.520 mm (0.0059 - 0.0205 inch)
Maximum:
No. 1 1.120 mm (0.0441 inch)
No. 2 1.170 mm (0.0461 inch)
Oil 1.120 mm (0.0441 inch)

Ring Groove Clearance:
No. 1 0.040 - 0.060 mm (0.0016 - 0.0024 inch)
No. 2 0.030 - 0.070 mm (0.0012 - 0.0028 inch)