Valve, Intake/Exhaust

SPECIFICATIONS
Valve
Overall length
Intake
Specification 106.28 mm (4.184 in.)
Limit 105.78 mm (4.165 in.)
Exhaust
Specification 105.4 mm (4.150 in.)
Limit 104.9 mm (4.130 in.)
Stem diameter
Intake 6.565 - 6.580 mm (0.258 - 0.259 in.)
Exhaust 6.530 - 6.550 mm (0.257 - 0.258 in.)
Face angle 45° - 45.5°
Margin
Intake
Specification 1.0 mm (0.0394 in.)
0.5 mm (0.0197 in.)
Exhaust
Specification 1.5 mm (0.059 in.)
1.0 mm (0.0394 in.)
Clearance (stem - to - guide)
Intake
Specification 0.02 - 0.05 mm (0.0009 - 0.0020 in.)
Limit 0.1 mm (0.0039 in.)
Exhaust
Specification 0.05 - 0.085 mm (0.0020 - 0.0033 in.)
Limit 0.15 mm (0.0059 in.)