Procedures

2AZ-FE ENGINE MECHANICAL: CYLINDER HEAD: REPAIR

1. REPAIR VALVE SEATS

NOTICE:

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.