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Reassembly [01/2019 - 11/2022]: Procedure

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  1. INSTALL SPARK PLUG TUBE 

    HINT: 

    When using a new cylinder head sub-assembly, the spark plug tubes must be replaced.

    1. Apply adhesive to a new spark plug tube as shown in the illustration.
      GTY437434Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Application Width
      *b 1.0 to 13.0 mm (0.0394 to 0.512 in.)

      Adhesive

      Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent.

      Standard Application Width

      1.0 to 3.0 mm (0.0394 to 0.118 in.)

      NOTE:
      • Install the spark plug tube within 3 minutes of applying adhesive.
      • Be careful not to deform the spark plug tube.
      • Be careful not to expose the seal to coolant for at least 1 hour after installing the spark plug tube.
    2. Using a wooden block and hammer, tap in the spark plug tube to the specified protrusion height.
      GTY941563Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Wooden Block
      *b Protrusion Height

      Standard Protrusion Height

      122 mm (4.80 in.)

      NOTE:

      To avoid tapping in the spark plug tube too far, measure the protrusion height while tapping it.

  2. INSTALL NO. 2 STRAIGHT SCREW PLUG 

    HINT: 

    If coolant leaks from a No. 2 straight screw plug or a plug is corroded, replace it.

    1. Using a 10 mm straight hexagon wrench, install 3 new gaskets and the 3 No. 2 straight screw plugs to the cylinder head sub-assembly.
      GTY449252Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 44 N.m (449 kgf/cm, 32 ft.lbf) 

  3. INSTALL VALVE SPRING SEAT 
    1. Install the 16 valve spring seats to the cylinder head sub-assembly.
  4. INSTALL VALVE STEM OIL SEAL 
    1. Apply a light coat of engine oil to 16 new valve stem oil seals.
      NOTE:

      Pay attention when installing the intake valve stem oil seals. For example, installing an intake side valve stem oil seal to the exhaust side or installing an exhaust side valve stem oil seal to the intake side can cause installation problems later.

      HINT: 

      The intake side valve stem oil seal is gray and the exhaust side valve stem oil seal is black.

      GTY908239Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Intake Side
      *b Exhaust Side
      *c Gray
      *d Black
    2. Using SST, push in the 16 valve stem oil seals.
      GTY852174Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Correct
      *b Incorrect
      • SST: 09201-41020 
      NOTE:
      • Failure to use SST will cause the intake valve stem oil seal to be damaged or improperly seated.
      • Do not push in the intake valve stem oil seals at an angle.
  5. INSTALL INTAKE VALVE 
    1. Sufficiently apply engine oil to the tip area of the intake valve shown in the illustration.
      GTY764538Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 30 mm (1.18 in.) or more
    2. Install the 8 intake valves, 8 inner compression springs and 8 valve spring retainers to the cylinder head sub-assembly.
      NOTE:
      • Install the inner compression spring with its tapered side facing upward (towards the valve spring retainer).
      • Install the same parts in the same combination to their original locations.
      GTY895062Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Inner Compression Spring
      *2 Valve Spring Retainer
      *3 Cylinder Head Sub-assembly
      Top Side
    3. Using SST and wooden blocks, compress the inner compression spring and install the 8 valve spring retainer locks.
      GTY492396Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Wooden Block
      • SST: 09202-70020 
        1. 09202-01010
        2. 09202-01020
      • SST: 09202-00021 
    4. Using a plastic hammer, lightly tap the valve stem tip to ensure a proper fit.
      GTY934606Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Plastic Hammer
      *b Wooden Block
      NOTE:
      • Be careful not to damage the valve stem tip.
      • Be careful not to damage the valve spring retainer.
  6. INSTALL EXHAUST VALVE 
    1. Sufficiently apply engine oil to the tip area of the exhaust valve shown in the illustration.
      GTY429048Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 30 mm (1.18 in.) or more
    2. Install the 8 exhaust valves, 8 inner compression springs and 8 valve spring retainers to the cylinder head sub-assembly.
      NOTE:
      • Install the inner compression spring with its tapered side facing upward (towards the valve spring retainer).
      • Install the same parts in the same combination to their original locations.
      GTY895061Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Inner Compression Spring
      *2 Valve Spring Retainer
      *3 Cylinder Head Sub-assembly
      Top Side
    3. Using SST and wooden blocks, compress the inner compression spring and install the 8 valve spring retainer locks.
      GTY862257Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Wooden Block
      • SST: 09202-70020 
        1. 09202-01010
        2. 09202-01020
      • SST: 09202-00021 
    4. Using a plastic hammer, lightly tap the valve stem tip to ensure a proper fit.
      GTY871223Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Plastic Hammer
      *b Wooden Block
      NOTE:
      • Be careful not to damage the valve stem tip.
      • Be careful not to damage the valve spring retainer.
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