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: Specifications

RING SIDE CLEARANCE
No. 1 20.03 - 0.07 mm (0.0012 - 0.0028 in.)
No. 2 0.03 - 0.07 mm (0.0012 - 0.0028 in.)

END GAP
No. 1 0.25 - 0.45 mm (0.0098 - 0.0177 in.)
No. 2 0.35 - 0.50 mm (0.0138 - 0.0197 in.)
Oil Ring Side Rail 0.20 - 0.70 mm (0.0079 - 0.0276 in.)

RINGS FOR SERVICE (OVERSIZE)
1st O.S. 0.25 mm (0.0100 in.)
2nd O.S. 0.50 mm (0.0200 in.)
3rd O.S. 0.75 mm (0.0300 in.)
4th O.S. 1.00 mm (0.0400 in.)