Procedures

2AZ-FE ENGINE MECHANICAL: CYLINDER HEAD: REPAIR

REPAIR

1. REPAIR VALVE SEATS
NOTE: Releasing the seat cutter pressure gradually helps to make the valve seat faces smoother.





(a) If the seating is too high on the valve face, use 30°and 45°cutters to correct the seat.






(b) If the seating is too low on the valve face, use 75°and 45°cutters to correct the seat.
(c) Lap the valve and valve seat by hand with an abrasive compound.
(d) Recheck the valve seating position.