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 (N @ Spec. Length) 720 - 800 at 28.02 Newton At Millimeter (N @ mm)
Exhaust (N @ Spec. Length) 720 - 800 at 28.02 Newton At Millimeter (N @ mm)
Valve Spring Free Length Intake 53.37 Millimeter (mm)
Exhaust 53.37 Millimeter (mm)
Valve Spring Installed Pressure N (@ Spec. Length Intake 287.19 - 321.19 at 42.56 Newton At Millimeter (N @ mm)
Exhaust 287.19 - 321.19 at 42.56 Newton At Millimeter (N @ mm)
Valve Springs Installed Pressure N @ Spec. Length Service Limit Intake 5% Pressure Loss at 28.80 Newton At Millimeter (N @ mm)
Exhaust 5% Pressure Loss at 28.80 Newton At Millimeter (N @ mm)
Valve Springs - Out Of Square Limit Intake 2.0 Degrees
Exhaust 2.0 Degrees