Cylinder Head Replacement

Engine. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
1Az-Fe Engine Mechanical. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. REPLACE INTAKE VALVE GUIDE BUSH

  2. REPLACE EXHAUST VALVE GUIDE BUSH

  3. REPLACE STUD BOLT

  4. REPLACE RING PIN

Cylinder Head -- Replacement



1. REPLACE INTAKE VALVE GUIDE BUSH


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. Heat the cylinder head to 80 to 100°C (176 to 212°F).

  1. Place the cylinder head on wooden blocks.



    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Mechanical.Engine.Cylinder Head Replacement

  1. Using SST and a hammer, tap out the guide bush.

    SST
    09201-10000(09201-01050)
    09950-70010(09951-07100)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. Heat the cylinder head to 80 to 100°C (176 to 212°F).

  1. Place the cylinder head on wooden blocks.



    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. Using a caliper gauge, measure the bush bore diameter of the cylinder head.

    Standard diameter:
    10.285 to 10.306 mm (0.4049 to 0.4058 in.)

  1. Install the STD bush if the diameter is within the specified diameter.

    Standard diameter:
    10.335 to 10.356 mm (0.4068 to 0.4077 in.)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Mechanical.Engine.Cylinder Head Replacement

  1. Using SST and a hammer, tap in a new guide bush to the specified protrusion height.

    SST
    09201-10000(09201-01050)
    09950-70010(09951-07100)
    Standard protrusion height:
    9.6 to 10 mm (0.3780 to 0.3937 in.)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. Using a sharp 5.5 mm reamer, ream the valve guide bush to the standard specified clearance between the valve guide bush and valve stem.

    Standard oil clearance:
    0.025 to 0.060 mm (0.0010 to 0.0024 in.)


2. REPLACE EXHAUST VALVE GUIDE BUSH


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. Heat the cylinder head to 80 to 100°C (176 to 212°F).

  1. Place the cylinder head on wooden blocks.



    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Mechanical.Engine.Cylinder Head Replacement

  1. Using SST and a hammer, tap out the guide bush.

    SST
    09201-10000(09201-01050)
    09950-70010(09951-07100)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Mechanical.Engine.Cylinder Head Replacement

  1. Heat the cylinder head to 80 to 100°C (176 to 212°F).

  1. Place the cylinder head on wooden blocks.



    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. Using a caliper gauge, measure the bush bore diameter of the cylinder head.

    Standard diameter:
    10.285 to 10.306 mm (0.4049 to 0.4058 in.)

  1. Install the STD bush if the diameter is within the specified diameter.

    Standard diameter:
    10.335 to 10.356 mm (0.4068 to 0.4077 in.)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Mechanical.Engine.Cylinder Head Replacement

  1. Using SST and a hammer, tap in a new guide bush to the specified protrusion height.

    SST
    09201-10000(09201-01050)
    09950-70010(09951-07100)
    Standard protrusion height:
    9.6 to 10.0 mm (0.3780 to 0.3937 in.)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. Using a sharp 5.5 mm reamer, ream the valve guide bush to the standard specified clearance between the valve guide bush and valve stem.

    Standard oil clearance:
    0.030 to 0.065 mm (0.0012 to 0.0026 in.)


3. REPLACE STUD BOLT
NOTICE:
If the stud bolt is deformed or threads are damaged, replace it.

  1. Using E5 and E7 "torx" socket wrenches, remove the 11 stud bolts.



  1. Using E5 and E7 "torx" socket wrenches, install the 11 stud bolts.


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Mechanical.Engine.Cylinder Head Replacement



4. REPLACE RING PIN

  1. Remove the 4 ring pins.



    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.1Az-Fe Engine Mechanical.Engine.Cylinder Head Replacement

  1. Using a plastic-faced hammer, tap in 4 new ring pins to the specified protrusion height.

    Protrusion height:
    3 mm (0.12 in.)