CYLINDER HEAD REPAIR

PROCEDURE


  1. REPAIR INTAKE VALVE SEAT

    A01VJG8E16
    *1 1.0 to 1.2 (0.039 to 0.047)
    *2 mm (in.)

    Note

    Releasing the seat cutter pressure gradually helps to make the intake valve seat faces smoother.


    1. If the seating is too high on the valve face, use 20° and 45° cutters to correct the seat.

    2. A01VETGE15
      *1 1.0 to 1.2 (0.039 to 0.047)
      *2 mm (in.)

      If the seating is too low on the valve face, use 60° and 45° cutters to correct the seat.

    3. Lap the intake valve and intake valve seat with an abrasive compound by hand.

    4. Recheck the valve seating position.

  2. REPAIR EXHAUST VALVE SEAT

    A01VJG8E17
    *1 1.2 to 1.6 (0.047 to 0.063)
    *2 mm (in.)

    Note

    Releasing the seat cutter pressure gradually helps to make the exhaust valve seat faces smoother.


    1. If the seating is too high on the valve face, use 20° and 45° cutters to correct the seat.

    2. A01VETGE16
      *1 1.2 to 1.6 (0.047 to 0.063)
      *2 mm (in.)

      If the seating is too low on the valve face, use 60° and 45° cutters to correct the seat.

    3. Lap the exhaust valve and exhaust valve seat with an abrasive compound by hand.

    4. Recheck the valve seating position.