Valve, Intake/Exhaust

VALVE HEAD RADIAL RUNOUT
Limit on valve head radial runout 0.08 mm (0.003 inch)


NOTE: Check each valve for radial runout with a dial gauge and "V" block. To check runout, rotate valve slowly. If runout exceeds its limit, replace valve.








EXHAUST VALVE SEAT
Seat width for exhaust
valve seat 1.1 - 1.3 mm (0.0433 - 0.0512 inch)

NOTE: Use valve seat cutters to make two cuts as illustrated in figure. Two cutters must be used: the first for making 15° angle, and the second for making 45° angle. The second cut must be made to produce desired seat width.

INTAKE VALVE SEAT
Seat width for intake
valve seat 1.1 - 1.3 mm (0.0433 - 0.0512 inch)

NOTE: Use valve seat cutters to make three cuts as illustrated in figure. Three cutters must be used: the 1st for making 15° angle, the 2nd for making 60� angle, and 3rd for making 45° angle. The 3rd cut (45°) must be made to produce desired seat width.