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

Valve Spring

DIMENSIONS
Squareness Deviation (Max.) 2.0 mm (0.079 inch)
Free Length
Standard 49.30 mm (1.9409 inches)
Limit (Min.) 48.10 mm (1.8937 inches)
Preload [1]
Standard 24.8-29.2 kg (54.7-64.3 lbs.)
Limit (Min.) 22.8 kg (50.2 lbs.)

[1] At 41.5 mm (1.63 inches)