Tiburon L4-1.8L (1997)
Valve: Testing and Inspection
1. Using a wire brush, clean the valve thoroughly.
2. Check each valve for wear, damage and distortion of head and stem at B in illustration.
Stem O.D:
Intake 5.965-5.980 mm (0.2348-0.2354 inch)
Exhaust 5.930-5.950 mm (0.2334-0.2342 inch)
Valve Stem To Valve Guide Clearance:
Intake:
Standard Value 0.02-0.05 mm (0.0008-0.0019 inch)
Service Limit 0.10 mm (0.0039 inch)
Exhaust:
Standard Value 0.05-0.085 mm (0.0019-0.0033 inch)
Service Limit 0.15 mm (0.0590 inch)
3. If stem end at A in illustration is pitted or worn, resurface as necessary.
Valve Length:
Intake 102.340 mm (4.0290 inch)
Exhaust 104.800 mm (4.1259 inch)
NOTE: This correction must be limited to a minimum.
4. Replace the valve if the margin has decreased to less than the service limit.
Margin:
Standard Value:
Intake 1.1 mm (0.0433 inch)
Exhaust 1.3 mm (0.0512 inch)
Service Limit:
Intake 0.8 mm (0.0391 inch)
Exhaust 1.0 mm (0.039 inch)
