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

Valve spring free length 53.37 mm (2.10 inch)
Valve spring squareness 2.0 degrees
Valve spring compression 720 - 800 N pressure (161.862 - 179.847 lbs.) @ 28.02 mm (1.10 inch)
Valve spring installed height 42.9 - 42.3 mm (1.6890 - 1.6654 inch)
Valve spring installed pressure-valve open 760 N @ 28.80 mm (170.855 lbs. @ 1.1339 inch)
Valve spring installed pressure-valve closed 302 N @ 42.56 mm (67.8923 lbs. @ 1.6756 inch)