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 Seat

Valve Seat
Angle 45°
Seat Diameter - Intake 33 mm (1.299 in.)
Seat Diameter - Exhaust 28 mm (1.102 in.)
Runout (Max.) 0.05 mm (0.002 in.)
Valve Seat Width - Intake and Exhaust 0.9 - 1.3 mm (0.035 - 0.051 in.)
Service Limit - Intake 2.0 mm (0.079 in.)
Service Limit - Exhaust 2.5 mm (0.098 in.)