CYLINDER HEAD REPAIR


  1. REPAIR INTAKE VALVE SEAT

    B007R1CE01

    1. Check the valve seating position.


      1. Apply a light coat of Prussian blue to the valve face.

      2. Lightly press the valve against the seat. Do not rotate the valve.

    2. Check the valve face and seat for the following:


      1. If blue appears 360° around the face, the valve is concentric. If not, replace the valve.

      2. If blue appears 360° around the valve seat, the guide and face are concentric. If not, resurface the seat.

      3. Check that the seat contact is in the middle of the valve face with the width below.

        Standard width
        1.2 to 1.6 mm (0.047 to 0.063 in.)
    3. B007SDLE06

      If the seating is too high on the valve face, use 25 and 45° cutters to correct the seat.

    4. B007QFLE06

      If the seating is too low on the valve face, use 70 and 45° cutters to correct the seat.

    5. B007RYEE01

      Hand-lap the valve and valve seat with an abrasive compound.

    6. After hand-lapping, clean the valve and valve seat.

  2. REPAIR EXHAUST VALVE SEAT

    B007VJKE01

    1. Check the valve seating position.


      1. Apply a light coat of Prussian blue to the valve face.

      2. Lightly press the valve against the seat. Do not rotate valve.

    2. Check the valve face and seat for the following:


      1. If blue appears 360° around the face, the valve is concentric. If not, replace the valve.

      2. If blue appears 360° around the valve seat, the guide and face are concentric. If not, resurface the seat.

      3. Check that the seat contact is in the middle of the valve face with the width below.

        Standard width
        1.6 to 2.0 mm (0.063 to 0.079 in.)
    3. B007SDLE07

      If the seating is too high on the valve face, use 25 and 45° cutters to correct the seat.

    4. B007QFLE07

      If the seating is too low on the valve face, use 75 and 45° cutters to correct the seat.

    5. B007SVCE01

      Hand-lap the valve and valve seat with an abrasive compound.

    6. After hand-lapping, clean the valve and valve seat.