Cylinder Head Repair


  1. REPAIR INTAKE VALVE SEAT

  2. REPAIR EXHAUST VALVE SEAT

Cylinder Head -- Repair



1. REPAIR INTAKE VALVE SEAT
NOTICE:
  1. Repair the seat while checking the seating position.
  2. Keep the lip free of foreign matter.
  3. Take off the cutter gradually to make the intake valve seat smooth.


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.2Kd-Ftv Engine Mechanical.Cylinder Head.Cylinder Head Repair

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

    Text in Illustration
    *a
    		1.2 to 1.6 mm (0.0472 to 0.0630 in.)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.2Kd-Ftv Engine Mechanical.Cylinder Head.Cylinder Head Repair

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

    Text in Illustration
    *a
    		1.2 to 1.6 mm (0.0472 to 0.0630 in.)

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

  1. Clean the valve and valve seat.



2. REPAIR EXHAUST VALVE SEAT
NOTICE:
  1. Repair the seat while checking the seating position.
  2. Keep the lip free of foreign matter.
  3. Take off the cutter gradually to make the exhaust valve seat smooth.


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.2Kd-Ftv Engine Mechanical.Cylinder Head.Cylinder Head Repair

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

    Text in Illustration
    *a
    		1.6 to 2.0 mm (0.0630 to 0.0787 in.)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.2Kd-Ftv Engine Mechanical.Cylinder Head.Cylinder Head Repair

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

    Text in Illustration
    *a
    		1.6 to 2.0 mm (0.0630 to 0.0787 in.)

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

  1. Clean the valve and valve seat.