General Specifications

DIMENSIONS
Cylinder head flatness:
Standard value Less than 0.05 mm (0.0020 inch)
Limit 0.10 mm (0.0039 inch)
Manifold Mounting Surface Flatness:
Standard value Less than 0.15 mm (0.0059 inch)
Limit 0.20 mm (0.0080 inch)
Rework Dimensions For Oversize Intake Valve Seat:
1st. O/S 0.30 mm (0.0012 inch) 29.800-29.821 mm (1.1730-1.1740 inch)
2nd. O/S 0.60 mm (0.0024 inch) 30.100-30.121 mm (1.1850-1.11860 inch)
Rework Dimensions For Oversize Exhaust Valve Seat:
1st. O/S 0.30 mm (0.0012 inch) 27.300-27.321 mm (1.0740-1.0760 inch)
2nd. O/S 0.60 mm (0.0024 inch) 27.600-27.621 mm (1.0870-1.0880 inch)
Rework Dimensions For Oversize Valve Guide:
1st. O/S 0.05 mm (0.0020 inch) 11.050-11.068 mm (0.4350-0.4357 inch)
2nd. O/S 0.25 mm (0.0100 inch) 11.250-11.268 mm (0.4430-0.4436 inch)
3rd. O/S 0.50 mm (0.0200 inch) 11.500-11.518 mm (0.4530-0.4535 inch)
Width Of Valve Seat Contact
Intake 0.800-1.100 mm (0.0310-0.0433 inch)
Exhaust 1.000-1.300 mm (0.0390-0.0512 inch)
Seat Angle 45°