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 (Approx)	Intake and Exhaust	1.9134 Inch (in)
Spring Force (Valve Closed)	Intake and Exhaust	70.92722 - 79.24515 at 1.6099 Pound Force At Inch (lbf @ in)
Spring Force (Valve Open)	Intake and Exhaust	176.6998 - 193.3357 at 1.167 Pound Force At Inch (lbf @ in)
Number of Coils	Intake and Exhaust	6.69
Wire Diameter	Intake and Exhaust	0.1685 - 0.1715 Inch (in)
Installed Height Nominal Spring seat to bottom of retainer.	Intake	1.613 Inch (in)
	Exhaust	1.606 Inch (in)