NEXON BS VI - SERVICE MANUAL

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1.2L REVOTRON ENGINE
60
E. Cylinder Head Valve Seats
Valve Seat Specification (1.2L NG TC REVOTRON)
Dimension Intake Valve Exhaust Valve
Valve Seat Diameter 32.42 +0.105/+0.080 mm 27.42 +0.085/+0.064 mm
Maximum Runout of Valve Seat with
Respect to Valve Guide Axis
0.030 mm 0.030 mm
Valve Seat Insert Thickness 5.14 - 0.1mm 4.8 - 0.1mm
Valve Seat Insert I.D. 27.0 ±0.1 mm 21.7 ±0.1 mm
Valve Seat Bore I.D.(in cylinder head) Normal : 32.82 ± 0.1 Normal : 28.42 ± 0.1
Valve Seat Insert O.D.
Normal : 33.92 +0.105
Normal 1 : 32.92 (+0.105/+0.080)
Normal : 31.30 +0.1
Normal 1 : 27.92 (+0.085/+0.064)
Valve Seat Insert Bore Angle 150 from vertical alignment with cylinder head mating surface