Hyundai Workshop Service and Repair Manuals

Valve Seat: Specifications

DIMENSIONS

Seat Replacement:

Intake Valve:

1st O.S. (marked 30) ....................................................................................................................................................  0.30 mm (0.0120 inch)

Insert height ...................................................................................................................................  5.100-5.300 mm (0.2010-0.2090 inch)
Insert diameter ...........................................................................................................................  28.800-28.821 mm (1.1340-1.1350 inch)

2nd O.S. (marked 60) ..................................................................................................................................................  0.60 mm (0.0240 inch)

Insert height ...................................................................................................................................  5.400-5.600 mm (0.2130-0.2200 inch)
Insert diameter ...........................................................................................................................  29.100-29.121 mm (1.1460-1.1470 inch)

Exhaust Valve:

1st O.S. (marked 30) ....................................................................................................................................................  0.30 mm (0.0120 inch)

Insert height ...................................................................................................................................  5.900-6.100 mm (0.2320-0.2400 inch)
Insert diameter ...........................................................................................................................  34.300-34.325 mm (1.3500-1.3510 inch)

2nd O.S. (marked 60) ..................................................................................................................................................  0.60 mm (0.0240 inch)

Insert height ...................................................................................................................................  6.200-6.400 mm (0.2440-0.2520 inch)
Insert diameter .............................................................................................................................  34.60-34.625 mm (1.3620-1.3630 inch)

Seat Angles:

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

Seat Width:

Intake ...................................................................................................................................................................  0.80-1.20 mm (0.0310-0.0470 inch)
Exhaust ................................................................................................................................................................  1.50-1.90 mm (0.0590-0.0750 inch)