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. A01DQWGE01

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

      SST
      09201-01055
      09950-70010   ( 09951-07100 )

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

      Standard Bush Bore Diameter
      Item Specified Condition
      STD 10.285 to 10.306 mm (0.405 to 0.406 in.)
      O/S 0.05 10.335 to 10.356 mm (0.407 to 0.408 in.)

      If the bush bore diameter of the cylinder head is more than 10.306 mm (0.406 in.), machine the bush bore so that the diameter is between 10.335 and 10.356 mm (0.407 and 0.408 in.).

      If the bush bore diameter of the cylinder head is more than 10.356 mm (0.408 in.), replace the cylinder head.

    5. Select a new valve guide bush.

      New Valve Guide Bush
      Item Specified Condition
      Bush Bore Diameter 10.333 to 10.344 mm (0.4068 to 0.4072 in.) 10.383 to 10.394 mm (0.4088 to 0.4092 in.)
      Use Bush STD O/S 0.05

      Tech Tips

      Standard bush length: 43.0 to 44.0 mm (1.69 to 1.73 in.)

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

    7. Place the cylinder head on wooden blocks.

    8. A01DPADE02
      Text in Illustration
      *1 Height

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

      SST
      09201-01055
      09950-70010   ( 09951-07100 )
      Standard protrusion height
      9.8 to 10.2 mm (0.386 to 0.402 in.)
    9. A01DNQX

      Using a sharp 5.5 mm reamer, ream the valve guide bush to obtain the standard 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. A01DRQPE01

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

      SST
      09201-01055
      09950-70010   ( 09951-07100 )

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

      Standard Bush Bore Diameter
      Item Specified Condition
      STD 10.285 to 10.306 mm (0.405 to 0.406 in.)
      O/S 0.05 10.335 to 10.356 mm (0.407 to 0.408 in.)

      If the bush bore diameter of the cylinder head is more than 10.306 mm (0.406 in.), machine the bush bore so that the diameter is between 10.335 and 10.356 mm (0.407 and 0.408 in.).

      If the bush bore diameter of the cylinder head is more than 10.356 mm (0.408 in.), replace the cylinder head.

    5. Select a new valve guide bush.

      New Valve Guide Bush
      Item Specified Condition
      Bush Bore Diameter 10.333 to 10.344 mm (0.4068 to 0.4072 in.) 10.383 to 10.394 mm (0.4088 to 0.4092 in.)
      Use Bush STD O/S 0.05

      Tech Tips

      Standard bush length: 43.0 to 44.0 mm (1.69 to 1.73 in.)

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

    7. Place the cylinder head on wooden blocks.

    8. A01DTABE02
      Text in Illustration
      *1 Height

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

      SST
      09201-01055
      09950-70010   ( 09951-07100 )
      Standard protrusion height
      7.6 to 8.0 mm (0.299 to 0.315 in.)
    9. A01DSZD

      Using a sharp 5.5 mm reamer, ream the valve 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 CAMSHAFT BEARING CAP SETTING RING PIN

    Note

    It is not necessary to remove a ring pin unless it is being replaced.

    A01DLXRE04

    1. Remove the ring pins.

    2. Using a plastic-faced hammer, tap in a new ring pin until the pin stops.

      Standard Ring Pin
      Item Height Width Protrusion Height
      Ring pin 7 mm (0.276 in.) 10 mm (0.394 in.) 2.5 to 3.8 mm (0.0984 to 0.150 in.)
      Text in Illustration
      *1 Height
      *2 Width
      *3 Protrusion Height

  4. REPLACE NO. 1 TIGHT PLUG

    Note

    If coolant leaks from the tight plug or the plug is corroded, replace it.

    A01DQV7E02

    1. Apply adhesive to the tight plug hole of the cylinder head.

      Adhesive
      Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent.

    2. Using SST and a hammer, tap in a new tight plug to the cylinder head as shown in the illustration.

      SST
      09950-60010   ( 09951-00250 )
      09950-70010   ( 09951-07100 )