Valve - Angle, Diameter

Valve (Unit: mm (inch))

Valve head diameter "D"
Intake 37.0 - 37.3 (1.4567 - 1.4685)
Exhaust 31.2 - 31.5 (1.228 - 1.240)

Valve length "L"
Intake 96.12 - 96.62 (3.7842 - 3.8039)
Exhaust 93.65 - 94.15 (3.6870 - 3.7067)

Valve stem diameter "d"
Intake 5.965 - 5.980 (0.2348 - 0.2354)
Exhaust 5.945 - 5.960 (0.2341 - 0.2346)

Valve seat angle "a"
Intake 45°15' - 45°45'
Exhaust 45°15' - 45°45'

Valve margin "T"
Intake 1.15 - 1.45 (0.0453 - 0.0571)
Exhaust 1.45 - 1.75 (0.0571 - 0.0689)

Valve margin "T" limit More than 0.5 (0.020)

Valve stem end surface grinding limit Less than 0.2 (0.008)