CYLINDER HEAD REASSEMBLY

CAUTION / NOTICE / HINT

Tech Tips

Perform "Inspection After Repair" after replacing the cylinder head sub-assembly.

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PROCEDURE


  1. INSTALL SPARK PLUG TUBE

    Note

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


    1. B0047GWC02
      *a 1.0 to 3.0 mm (0.0394 to 0.118 in.)
      *b 1.0 to 13.0 mm (0.0394 to 0.512 in.)

      Apply adhesive to the area of a new spark plug tube shown in the illustration.

      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. B0045O2C18
      *a 122 mm (4.80 in.)

      Using a wooden block and hammer, tap in the spark plug tube to the specified 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

    Note

    If water leaks from the No. 2 straight screw plug or the plug is corroded, replace it.


    1. B0046GG

      Using a 10 mm straight hexagon wrench, install 3 new gaskets and the 3 No. 2 straight screw plugs.

      Torque:
      44 N*m  { 449 kgf*cm, 32 ft.*lbf }

  3. INSTALL VALVE SPRING SEAT


    1. Install the valve spring seats to the cylinder head sub-assembly.

  4. INSTALL VALVE STEM OIL SEAL


    1. B0046LAC08
      *a Intake Side
      *b Exhaust Side
      *c Gray
      *d Black

      Apply a light coat of engine oil to new valve stem oil seals.

      Note

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

      Tech Tips

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

    2. B0047BFC02
      *a Correct
      *b IncorrectT

      Using SST, push in the valve stem oil seals.

      SST
      09201-41020

      Note

      Make sure to use SST, or the valve stem oil seals may be damaged or improperly seated.

  5. INSTALL INTAKE VALVE


    1. B0047EKC16
      *a 30 mm (1.18 in.) or more

      Sufficiently apply engine oil to the tip area of the intake valve shown in the illustration.

      Note

      Install the same parts in the same combination to the original locations.

    2. B0046EFC19
      *1 Compression Spring
      *2 Valve Spring Retainer
      *3 Cylinder Head
      *4 Upper Side

      Install the intake valve, inner compression spring and valve spring retainer to the cylinder head.

      Note


      • Install the compression spring with its taperside facing upward (towards the valve spring retainer).

      • Install the same parts in the same combination to the original locations.

    3. B00463BC09
      *a Wooden Block

      Using SST and wooden blocks, compress the compression spring and install the 2 retainer locks.

      SST
      09202-70020
    4. B0045SO

      Using a plastic-faced hammer, lightly tap the valve stem tip to ensure a proper fit.

      Note


      • Be careful not to damage the valve stem tip.

      • Be careful not to damage the retainer.

  6. INSTALL EXHAUST VALVE


    1. B0046ZVC13
      *a 30 mm (1.18 in.) or more

      Sufficiently apply engine oil to the tip area of the exhaust valve shown in the illustration.

    2. B0046EFC20
      *1 Compression Spring
      *2 Valve Spring Retainer
      *3 Cylinder Head
      *4 Upper Side

      Install the exhaust valve, compression spring and spring retainer to the cylinder head sub-assembly.

      Note


      • Install the compression spring with its taperside facing upward (towards the valve spring retainer).

      • Install the same parts in the same combination to the original locations.

    3. B0045GOC09
      *a Wooden Block

      Using SST and wooden blocks, compress the compression spring and install the 2 retainer locks.

      SST
      09202-70020
    4. B0046WU

      Using a plastic-faced hammer, lightly tap the valve stem tip to ensure a proper fit.

      Note


      • Be careful not to damage the valve stem tip.

      • Be careful not to damage the retainer.

  7. INSTALL VALVE STEM CAP


    1. Apply a light coat of engine oil to the valve stem caps.

    2. Install the 16 valve stem caps.

      Tech Tips

      Do not drop the valve stem caps into the cylinder head sub-assembly.