Valve, Intake/Exhaust

DIMENSIONS

Valve Head Diameter "D":
Intake: 29.9 - 30.2 mm (1.177 - 1.189 inch)
Exhaust: 24.9 - 25.2 mm (0.980 - 0.992 inch)

Valve Length "L"
Intake: 92.00 - 92.5 mm (3.6220 - 3.6417 inch)
Exhaust: 92.37 - 92.87 mm (3.6366 - 3.6563 inch)

Valve Stem Diameter "d"
Intake: 5.465 - 5.480 mm (0.2152 - 0.2157 inch)
Exhaust: 5.445 - 5.460 mm (0.2144 - 0.2150 inch)

Valve Seat Angle
Intake and Exhaust: 45°15' - 45°45'

Valve Margin "T"
Intake: 1.1 mm (0.043 inch)
Exhaust: 1.3 mm (0.051 inch)

Valve Margin "T" Limit: 1.05 - 1.35 mm (0.0413 - 0.0531 inch)

Valve Stem End Surface Grinding Limit: 0.2 mm (0.008 inch)