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

Outer valve spring free height	2.016 Inch (in)
Inner valve spring free height	1.736 Inch (in)
Outer valve spring pressure	117.7 at 1.181 Pound Force At Inch (lbf @ in)
Inner valve spring pressure	57.3 at 0.984 Pound Force At Inch (lbf @ in)
Outer valve spring out-of-square	0.087 Inch (in)
Inner valve spring out-of-square	0.075 Inch (in)