CYLINDER HEAD REPAIR

PROCEDURE


  1. REPAIR INTAKE VALVE SEAT

    Note


    • Repair the intake valve seat while checking the intake valve seating position.

    • Keep the lip free of foreign matter.

    • Take off the cutter gradually to make the intake valve seat smooth.


    1. A01SBUTC01
      *a 1.2 to 1.6 mm (0.0472 to 0.0630 in.)

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

    2. A01LDKIC01
      *a 1.2 to 1.6 mm (0.0472 to 0.0630 in.)

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

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

    4. Clean the intake valve and intake valve seat.

  2. REPAIR EXHAUST VALVE SEAT

    Note


    • Repair the exhaust valve seat while checking the exhaust valve seating position.

    • Keep the lip free of foreign matter.

    • Take off the cutter gradually to make the exhaust valve seat smooth.


    1. A01LFKQC02
      *a 1.6 to 2.0 mm (0.0630 to 0.0787 in.)

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

    2. A01LDKIC02
      *a 1.6 to 2.0 mm (0.0630 to 0.0787 in.)

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

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

    4. Clean the exhaust valve and exhaust valve seat.