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

Free Length (Approx.) 1.876 Inch (in)
Spring Tension-Valve Closed 71 to 79 at 1.64 Pound Force At Inch (lbf @ in)
Spring Tension-Valve Open 202 to 218 at 1.216 Pound Force At Inch (lbf @ in)
Inside Diameter 0.827 to 0.847 in