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 diameter
Valve face runout (T.I.R. max) 0.038 mm (0.015 inch)
Valve face angle
Exhaust 37.5 degrees
Intake 30 degrees
Valve seat width
Exhaust 1.80-2.56 mm (0.071-0.101 inch)
Intake 1.48-2.24 mm (0.058-0.088 inch)
Valve seat runout 0.0035 mm (0.0014 inch)
Valve seat angle
Exhaust 37.5 degrees
Intake 30 degrees