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)

Or, hide this message: temporarily or permanently

Valve Spring

Compression Pressure (N (Lb.) @ Spec. Length) Intake 161.9 at 1.13 Pound Force At Inch (lbf @ in)
Exhaust 161.9 at 1.13 Pound Force At Inch (lbf @ in)
Free Length (Approximate) 2.04 - 2.16 Inch (in)