Operation CHARM: Car repair manuals for everyone.
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

GENERAL SPECIFICATIONS
Valve Springs Compression Pressure (Kg [Lb] @ Spec Length)
Loaded (Without Damper) 800.6 N (180 lbs) 29.5 mm (1.16 in)
Unloaded (Without Damper) 289.1 N (65 lbs) @ 40.1 mm (1.58 in)
Free Length (Approximate) 46.7 mm (1.84 in)
Assembled Height 40.08 mm (1.58 in)
Service Limit 10% Force Loss @ Specified Height