Cylinder Head Replacement

Engine Hybrid System. Corolla. Zre142 Aze141
2Az-Fe Engine Mechanical. Corolla. Zre142 Aze141

  1. REMOVE INTAKE VALVE GUIDE BUSH

  2. REMOVE EXHAUST VALVE GUIDE BUSH

  3. INSTALL INTAKE VALVE GUIDE BUSH

  4. INSTALL EXHAUST VALVE GUIDE BUSH

Cylinder Head -- Replacement



1. REMOVE INTAKE VALVE GUIDE BUSH


Corolla. Zre142 Aze141.2Az-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.

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

    SST
    09202-70020(09202-00010)


2. REMOVE EXHAUST VALVE GUIDE BUSH


Corolla. Zre142 Aze141.2Az-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.

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

    SST
    09202-70020(09202-00010)


3. INSTALL INTAKE VALVE GUIDE BUSH


Corolla. Zre142 Aze141
  1. Using a caliper gauge, measure the bush bore diameter of the cylinder head.

    Cylinder bore diameter:
    10.285 to 10.306 mm (0.4049 to 0.4057 in.)
    Select a New Guide Bush (STD or O/S 0.05):
    Bush Size
    Bush Bore Diameter
    Use STD
    10.285 to 10.306 mm (0.4049 to 0.4057 in.)
    Use O/S 0.05
    10.335 to 10.356 mm (0.4069 to 0.4077 in.)
    If the cylinder head bush bore diameter is greater than 10.306 mm (0.4057 in.), machine the bush bore to a dimension of 10.335 to 10.356 mm (0.4069 to 0.4077 in.) and install an O/S 0.05 valve guide bush. If the bush bore diameter of the cylinder head is greater than 10.356 mm (0.4077 in.), replace the cylinder head.
  1. Heat the cylinder head to 80 to 100°C (176 to 212 °F).

  1. Place the cylinder head on wooden blocks.



    Corolla. Zre142 Aze141.2Az-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)
    Protrusion height:
    9.6 to 10.0 mm (0.3779 to 0.3937 in.)


    Corolla. Zre142 Aze141
  1. Using a sharp 5.5 mm reamer, ream the guide bush to obtain the standard specified clearance between the guide bush and valve stem.

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


4. INSTALL EXHAUST VALVE GUIDE BUSH


Corolla. Zre142 Aze141
  1. Using a caliper gauge, measure the bush bore diameter of the cylinder head.

    Cylinder bore diameter:
    10.285 to 10.306 mm (0.4049 to 0.4057 in.)
    Select a New Guide Bush (STD or O/S 0.05):
    Bush Size
    Bush Bore Diameter
    Use STD
    10.285 to 10.306 mm (0.4049 to 0.4057 in.)
    Use O/S 0.05
    10.335 to 10.356 mm (0.4069 to 0.4077 in.)
    If the cylinder head bush bore diameter is greater than 10.306 mm (0.4057 in.), machine the bush bore to a dimension of 10.335 to 10.356 mm (0.4069 to 0.4077 in.) and install an O/S 0.05 valve guide bush. If the bush bore diameter of the cylinder head is greater than 10.356 mm (0.4077 in.), replace the cylinder head.
  1. Heat the cylinder head to 80 to 100°C (176 to 212 °F).

  1. Place the cylinder head on wooden blocks.



    Corolla. Zre142 Aze141.2Az-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)
    Protrusion height:
    9.6 to 10.0 mm (0.3779 to 0.3937 in.)


    Corolla. Zre142 Aze141
  1. Using a sharp 5.5 mm reamer, ream the guide bush to obtain the standard specified clearance between the guide bush and valve stem.

    Standard oil clearance:
    0.030 to 0.065 mm (0.00118 to 0.00256 in.)