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 Face Angle 45 Degrees (deg)
Valve Face Runout 0.0014 Inch (in)
Valve Head Diameter (Exhaust) 1.73 Inch (in)
Valve Head Diameter (Inlet) 1.45 Inch (in)
Valve Margin (Exhaust) 0.083 - 0.073 Inch (in)
Valve Margin (Inlet) 0.058 - 0.048 Inch (in)
Valve Overall Length (Exhaust) 5.00 Inch (in)
Valve Overall Length (Inlet) 5.28 Inch (in)
Valve Stem to Guide Clearance (Exhaust) 0.0014 - 0.0029 Inch (in)
Valve Stem to Guide Clearance (Inlet) 0.0007 - 0.0020 Inch (in)
Valve Tip to Retainer Groove Centerline 0.195 - 0.214 Inch (in)