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

Valves Face Angle 44.5 - 45 Degrees (deg)
Head Diameter Intake 1.4319 - 1.4421 Inch (in)
Exhaust 1.1366 - 1.1469 Inch (in)
Length Overall Intake 4.5043 - 4.5272 Inch (in)
Exhaust 4.9476 - 4.9705 Inch (in)
Stem Diameter Intake 0.2730 - 0.2737 Inch (in)
Exhaust 0.2719 - 0.2726 Inch (in)
Stem to Guide Clearance Intake 0.0009 - 0.0026 Inch (in)
Intake Rocking Method 0.0114 Inch (in)
Exhaust 0.002 - 0.0037 Inch (in)
Exhaust Rocking Method 0.0146 Inch (in)
Valve Stem height Intake 1.6680 - 1.7187 Inch (in)
Exhaust 1.760 - 1.7105 Inch (in)