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

SPECIFICATIONS
Valve
Valve length
Intake 114.34 mm (4.5016 inch)
Exhaust 116.8 mm (4.598 inch)
Stem O.D.
Intake 5.965 - 5.98 mm (0.2348 - 0.2354 inch)
Exhaust 5.950 - 5.965 mm (0.2343 - 0.2348 inch)
Face angle thickness of valve head (Margin)
Intake
Specification 1.15 mm (0.0452 inch)
Limit 0.8 mm (0.031 inch)
Exhaust
Specification 1.35 mm (0.0531 inch)
Limit 1.0 mm (0.039 inch)
Valve stem to valve guide clearance
Intake
Specification 0.02 - 0.05 mm (0.0008 - 0.0019 inch)
Limit 0.10 mm (0.0039 inch)
Exhaust
Specification 0.035 - 0.065 mm (0.0014 - 0.0026 inch)
Limit 0.13 mm (0.0051 inch)