Valve, Intake/Exhaust

Head Thickness:
Intake Valves (Standard) 0.8-1.2 mm (0.03-0.047 inch)
Intake Valves (Minimum Limit) 0.6 mm (0.024 inch)
Exhaust Valves (Standard) 0.8-1.2 mm (0.03-0.047 inch)
Exhaust Valves (Minimum Limit) 0.7 mm (0.027 inch)
Head Angles for Refinishing
Area Above Seat Contact Surface 15°
Seat Contact Surface 45°
Seating Contact Width (All) 1.1-1.3 mm (0.0433-0.0512 inch)
Valve Lash
Cold Adjustment Coolant Temperature 25°C (77°F)
Intake 0.13-0.17 mm (0.005-0.007 inch)
Exhaust 0.13-0.17 mm (0.005-0.007 inch)
Hot Adjustment Coolant Temperature 68°C (154°F)
Intake 0.17-0.21 mm (0.007-0.008 inch)
Exhaust 0.17-0.21 mm (0.007-0.008 inch)
Valve Stem Outside Diameter:
Intake Valves 5.465-5.480 mm (0.2152-0.2157 inch)
Exhaust Valves 5.440-5.455 mm (0.2142-0.2148 inch)
Valve Stem-to-Valve Guide Clearance:
Intake Valves (Standard) 0.020-0.047 mm (0.0008-0.0018 inch)
Intake Valves (Maximum Limit) 0.070 mm (0.0027 inch)
Exhaust Valves (Standard) 0.045-0.072 mm (0.0018-0.0028 inch)
Exhaust Valves (Maximum Limit) 0.090 mm (0.0035 inch)