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

Valve Spring Compression Pressure Intake 680 at 30.19 Newton At Millimeter (N @ mm)
Exhaust 680 at 30.19 Newton At Millimeter (N @ mm)
Free Length (approximate) Intake 46.8 Millimeter (mm)
Installed Height Exhaust 46.8 Millimeter (mm)
Out of Square Limit 1 %