CYLINDER HEAD REPAIR


  1. REPAIR INTAKE VALVE SEAT

    Note


    • Repair the seat while checking the seating position.

    • Keep the lip free of foreign matter.


    1. A015YUT

      Using a 45° cutter, resurface the valve seat so that the valve seat width is more than the specification.

    2. A015ZC6E01

      Using 30° and 60° cutters, correct the valve seat so that the valve contacts the entire circumference of the seat. The contact should be in the center of the valve seat, and the valve seat width should be maintained within the specified range around the entire circumference of the seat.

      Standard width
      1.1 to 1.5 mm (0.0433 to 0.0591 in.)

    3. Handrub the valve and valve seat with an abrasive compound.

    4. Check the valve seating position.

  2. REPAIR EXHAUST VALVE SEAT

    Note


    • Repair the seat while checking the seating position.

    • Keep the lip free of foreign matter.


    1. A015YXI

      Using a 45° cutter, resurface the valve seat so that the valve seat width is more than the specification.

    2. A015ZMLE02

      Using 30° and 60° cutters, correct the valve seat so that the valve contacts the entire circumference of the seat. The contact should be in the center of the valve seat, and the valve seat width should be maintained within the specified range around the entire circumference of the seat.

      Standard width
      1.3 to 1.7 mm (0.0512 to 0.0669 in.)

    3. Handrub the valve and valve seat with an abrasive compound.

    4. Check the valve seating position.