Valve, Intake/Exhaust

DIMENSIONS
Face Angle 45 - 45.5°
Margin
Intake
Standard Value 1.0 mm (0.039 inch)
Exhaust
Standard Value 1.5 mm (0.059 inch)
Wear Limit (I/E) 0.8 mm (0.031 inch)
Overall Height
Intake
Standard Value 109.50 mm (4.3110 inch)
Wear Limit 109.00 mm (4.2913 inch)
Exhaust
Standard Value 109.70 mm (4.3189 inch)
Wear Limit 109.20 mm (4.2992 inch)
Stem To Guide Clearance
Intake
Standard Value 0.02 - 0.05 mm (0.0008 - 0.0020 inch)
Wear Limit 0.10 mm (0.004 inch)
Exhaust
Standard Value 0.05 - 0.09 mm (0.0020 - 0.0035 inch)
Wear Limit 0.15 mm (0.006 inch)
Stem Projection
Intake
Standard Value 49.20 mm (1.9370 inch)
Wear Limit 49.80 mm (1.9606 inch)
Exhaust
Standard Value 48.40 mm (1.9055 inch)
Wear Limit 48.90 mm (1.9252 inch)