CYLINDER HEAD(w/ DPF) REPAIR

PROCEDURE


  1. REPAIR INTAKE VALVE SEAT

    Note

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


    1. A01VJG8E18
      *1 1.0 to 1.2 (0.039 to 0.047 in.)

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

    2. A01VETGE18
      *1 1.0 to 1.2 mm (0.039 to 0.047 in.)

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

    Note

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


    1. A01VJG8E19
      *1 1.2 to 1.6 mm (0.047 to 0.063 in.)

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

    2. A01VETGE17
      *1 1.2 to 1.6 mm (0.047 to 0.063 in.)

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

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

    4. Recheck the valve seating position.