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, Intake/Exhaust

VALVE HEAD:
Face Angle 45 Degrees
Face Runout 0.03 mm (0.0012 inch)
Margin 0.08 mm (0.031 inch)

VALVE STEM TO GUIDE CLEARANCE:
Intake 0.025 - 0.069 mm (0.0010 - 0.0027 inch)
Exhaust 0.035 - 0.081 mm (0.0014 - 0.0031 inch)