Valve, Intake/Exhaust

Valves





A = Valve head diameter
Intake: 31.00 ± 0.15 mm
Exhaust: 27.00 ± 0.15 mm

B = Valve stem diameter
Intake: 6.97 mm (+0.00/-0.015 mm)
Exhaust: 6.97 mm (+0.00/-0.015 mm)

C = Overall length
Intake: 104.05 ± 0.18 mm
Exhaust: 103.30 ± 0.18 mm
Max. machining allowance, valve stem: 0.40 mm

D = Height of valve head
Intake/exhaust: 1.50 mm
Min. height after grinding: 1.20 mm

E = Sealing face angle
Intake: 44.50°
Exhaust: 44.50°





Valve stem height
Valve stem height: 48.50 ± 0.40 mm
Max. machining allowance, valve stem: 0.40 mm





Valve Seat Angles:
Sealing face angle, intake/exhaust: 45°
Relief angle, upper: 15°
Relief angle, lower: 60°

Valve seat width: (dimension a)
Intake: 1.40-1.80 mm
Exhaust: 1.80-2.20 mm