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 Springs
Length Installed 35 mm (1.3780 inch)
Free 40.790-43.690 mm (1.6059-1.7201 inch)
Valve Closed 35 mm (1.3780 inch)
Valve Open 24.500 mm (0.9646 inch)
Force, Valve Closed 211.4-233.4 Nm (47.5-52.5 lbs.)
Valve Open 579.0-631.0 Nm (130.2-141.9 lbs.)
Diameter Inside 17.750-18.250 mm (0.6988-0.7185 inch)
Outside 26.23 mm (1.0327 inch)
Wire, Ovate 4.110 x 3.280 mm (0.1618 x 0.1291 inch)
Coil Direction Clockwise
Total Number of Coils 6.90 - 7.10
Identifier Orange