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

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Valve Spring

Free Length (Approximately) 48.4 mm (1.905 inch)
Number of Coils 7.82
Wire Diameter 3.86 mm
Installed Spring Height 38 mm (1.496 inch)
Spring Tension:
Valve Closed 338 N ±20 N @ 38 mm (75.98 ±4.5 lbs. @ 1.496 inch)
Valve Open 607 N ±30 N @ 29.75 mm (136 ±7 lbs. @ 1.172 inch)