CYLINDER HEAD REPLACEMENT

PROCEDURE


  1. REPLACE INTAKE VALVE GUIDE BUSH


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

    2. Place the cylinder head on wooden blocks.

    3. A01VHVHE01

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

      SST
      09201-10000   ( 09201-01050 )

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

      Bush bore diameter
      9.685 to 9.706 mm (0.3813 to 0.3821 in.)
      Select a New Guide Bush (STD or O/S 0.05)
      Bush Size Bush Bore Diameter
      STD 9.727 to 9.738 mm (0.3830 to 0.3834 in.)
      O/S 0.05 9.777 to 9.788 mm (0.3849 to 0.3854 in.)

      If the bush bore diameter of the cylinder head is greater than 9.706 mm (0.3821 in.), machine the bush bore to the dimension of 9.735 to 9.756 mm (0.3833 to 0.3841 in.) to install an O/S 0.05 valve guide bush.

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

    6. Place the cylinder head on wooden blocks.

    7. A01VKTKE04
      Text in Illustration
      *a Height

      Using SST and a hammer, tap a new guide bush into the specified protrusion height.

      SST
      09201-10000   ( 09201-01050 )
      Protrusion height
      9.4 to 10.0 mm (0.3701 to 0.3937 in.)

    8. Using a sharp reamer, ream the guide bush to obtain the standard clearance between the guide bush and valve stem.

      Standard oil clearance
      0.025 to 0.060 mm (0.00098 to 0.00236 in.)

  2. REPLACE EXHAUST VALVE GUIDE BUSH


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

    2. Place the cylinder head on wooden blocks.

    3. A01VE2DE01

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

      SST
      09201-10000   ( 09201-01050 )

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

      Bush bore diameter
      9.685 to 9.706 mm (0.3813 to 0.3821 in.)
      Select a New Guide Bush (STD or O/S 0.05)
      Bush Size Bush Bore Diameter
      STD 9.727 to 9.738 mm (0.3830 to 0.3834 in.)
      O/S 0.05 9.777 to 9.788 mm (0.3849 to 0.3854 in.)

      If the bush bore diameter of the cylinder head is greater than 9.706 mm (0.3821 in.), machine the bush bore to the dimension of 9.735 to 9.756 mm (0.3833 to 0.3841 in.) to install an O/S 0.05 valve guide bush.

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

    6. Place the cylinder head on wooden blocks.

    7. A01VG8GE02
      Text in Illustration
      *a Height

      Using SST and a hammer, tap a new guide bush into the specified protrusion height.

      SST
      09201-10000   ( 09201-01050 )
      Protrusion height
      9.4 to 10.0 mm (0.3701 to 0.3937 in.)

    8. Using a sharp reamer, ream the guide bush to obtain the standard clearance between the guide bush and valve stem.

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

  3. REPLACE STUD BOLT

    Note

    If any of the stud bolts is deformed or the threads are damaged, replace it.


    1. Remove the stud bolts.

      A01VHTRE01
      Text in Illustration
      *a Upper Side *b Exhaust Side
      *c Intake Side - -

    2. Install the stud bolts.

  4. REPLACE RING PIN

    Note

    It is not necessary to remove the ring pins unless they are being replaced.


    1. A01VLSYE03
      Text in Illustration
      *a Upper Side

      Remove the ring pins.

    2. Install the ring pins.

      Protrusion Height
      4.5 to 5.5 mm (0.177 to 0.217 in.)