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)

Or, hide this message: temporarily or permanently

Piston Ring

Piston Ring (Unit: mm (inch))

Side clearance
Top
Standard: 0.040 - 0.080 (0.0016 - 0.0031)
Limit: 0.11 (0.0043)

2nd
Standard: 0.030 - 0.070 (0.0012 - 0.0028)
Limit: 0.1 (0.004)

Oil ring: 0.015 - 0.050 (0.0006 - 0.0020)

End gap
Top
Standard: 0.23 - 0.33 (0.0091 - 0.0130)
Limit: 0.54 (0.0213)

2nd
Standard: 0.33 - 0.48 (0.0130 - 0.0189)
Limit: 0.80 (0.0315)

Oil (rail ring)
Standard: 0.20 - 0.60 (0.0079 - 0.0236)
Limit: 0.95 (0.0374)