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)

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Valve Seat







Valve Stem Height
Height: 48.5 mm ± 0.4 mm
Max. Machining Allowance: 0.4 mm





Valve Seats (Reconditioned)
Angles:
Sealing Face Angle: 45°
Relief Angle, Upper, Intake: 15°
Relief Angle, Upper, Exhaust: 15°
Relief Angle, Lower: 60°

Valve Seat Width: (a)
Intake: 1.4-1.8 mm
Exhaust: 1.8-2.2 mm