CYLINDER HEAD REPLACEMENT


  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. A005W5IE01

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

      SST
      09202-70020   ( 09202-00010 )
    4. A005VLK

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

      Cylinder head 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 Diameter
      Use STD 10.333 to 10.344 mm (0.4068 to 0.4072 in.)
      Use O/S 0.05 10.383 to 10.394 mm (0.4088 to 0.4092 in.)

      If the bush bore diameter of the cylinder head is more than 10.306 mm (0.406 in.), machine the bush bore to a diameter of 10.335 to 10.356 mm (0.407 to 0.408 in.) in order to install an O/S 0.05 valve guide bush. If the bush bore diameter of the cylinder head is more than 10.356 mm (0.408 in.), replace the cylinder head.

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

    6. Place the cylinder head on wooden blocks.

    7. A005RDDE04
      Text in Illustration
      *1 Protrusion Height

      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 (0.378 to 0.394 in.)
    8. A005T5C

      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 (0.000984 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. A005TVLE03

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

      SST
      09202-70020   ( 09202-00010 )
    4. A005VIU

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

      Cylinder head 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 Diameter
      Use STD 10.333 to 10.344 mm (0.4068 to 0.4072 in.)
      Use O/S 0.05 10.383 to 10.394 mm (0.4088 to 0.4092 in.)

      If the bush bore diameter of the cylinder head is more than 10.306 mm (0.406 in.), machine the bush bore to a diameter of 10.335 to 10.356 mm (0.407 to 0.408 in.) in order to install an O/S 0.05 valve guide bush. If the bush bore diameter of the cylinder head is more than 10.356 mm (0.408 in.), replace the cylinder head.

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

    6. Place the cylinder head on wooden blocks.

    7. A005U9VE04
      Text in Illustration
      *1 Protrusion Height

      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 (0.378 to 0.394 in.)
    8. A005RY5

      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.)

  3. REPLACE RING PIN


    1. Remove the 4 ring pins.

    2. A005TUQE06

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

      Standard Ring Pin
      Item Height Width Protrusion
      Ring pin 8.0 mm (0.315 in.) 11.0 mm (0.433 in.) 3.0 mm (0.118 in.)