Hyundai Workshop Service and Repair Manuals

Valve Seat: Specifications

DIMENSIONS

Seat Replacement:

Intake Valve:

1st O.S. (marked 30) ..................................................................................................................................................  0.300 mm (0.0120 inch)

Insert height ...................................................................................................................................  5.100-5.300 mm (0.2010-0.2090 inch)
Insert diameter ...........................................................................................................................  29.800-29.821 mm (1.1730-1.1740 inch)

2nd O.S. (marked 60) ................................................................................................................................................  0.600 mm (0.0240 inch)

Insert height ...................................................................................................................................  5.400-5.600 mm (0.2130-0.2200 inch)
Insert diameter ...........................................................................................................................  30.100-30.121 mm (1.1850-1.1860 inch)

Exhaust Valve:

1st O.S. (marked 30) ..................................................................................................................................................  0.300 mm (0.0120 inch)

Insert height ...................................................................................................................................  5.900-6.100 mm (0.2320-0.2400 inch)
Insert diameter ...........................................................................................................................  27.300-27.321 mm (1.0740-1.0750 inch)

2nd O.S. (marked 60) ................................................................................................................................................  0.600 mm (0.0240 inch)

Insert height ...................................................................................................................................  6.200-6.400 mm (0.2440-0.2520 inch)
Insert diameter ...........................................................................................................................  27.600-34.621 mm (1.0860-1.0870 inch)

Seat Angles:

Upper Narrowing Angle .........................................................................................................................................................................................  29°
Lower Narrowing Angle ......................................................................................................................................................................................  73.5°
Seat Angle ..............................................................................................................................................................................................................  45°

Seat Width:

Intake ...............................................................................................................................................................  0.800-1.200 mm (0.0310-0.0470 inch)
Exhaust ............................................................................................................................................................  1.500-1.900 mm (0.0590-0.0750 inch)