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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Valve Spring

DIMENSIONS
Squareness Deviation (Max.) 2.0 mm (0.079 inch)
Free Length
Standard 42.29 mm (1.6649 inches)
Limit (Min.) 41.00 mm (1.6142 inches)
Preload [1]
Standard 20.9-23.5 kg (46.1-51.8 lbs.)
Limit (Min.) 18.7 kg (41.2 lbs.)

[1] At 32.6 mm (1.28 inches)