CYLINDER HEAD REASSEMBLY

Tech Tips

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


  1. INSTALL SPARK PLUG TUBE

    Tech Tips

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


    1. A01G4F8E01

      Apply adhesive onto the shaded area of a new spark plug tube.

      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 after applying adhesive.

      • Be careful not to deform the spark plug tube.

      • Be careful not to expose the seal to engine oil for at least 1 hour after installing it.

    2. A01G9BEE12
      Text in Illustration
      *a Cylinder Head Top Surface

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

      Standard protrusion height
      72.9 mm (2.87 in.)

      Note

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

  2. INSTALL NO. 1 STRAIGHT SCREW PLUG


    1. A01G82LE12
      Text in Illustration
      *a Bank 1
      *b Bank 2

      Using a 10 mm hexagon wrench, install 4 new gaskets and the 4 No. 1 straight screw plugs.

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

  3. INSTALL NO. 2 STRAIGHT SCREW PLUG


    1. A01G678E01
      Text in Illustration
      *a Bank 1
      *b Bank 2

      Using a 14 mm hexagon wrench, install 2 new gaskets and the 2 No. 2 straight screw plugs.

      Torque:
      80 N*m  { 816 kgf*cm, 59 ft.*lbf }

  4. INSTALL VALVE SPRING SEAT


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

  5. INSTALL VALVE STEM OIL SEAL


    1. A01G6T2E17
      Text in Illustration
      *a

      Gray

      (Intake Side)
      *b

      Black

      (Exhaust Side)

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

      Note

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

      Tech Tips

      The intake valve stem oil seals are gray and the exhaust valve stem oil seals are black.

    2. A01G7FXE06
      Text in Illustration
      *a Correct
      *b Incorrect

      Using SST, push in the valve stem oil seals.

      SST
      09201-41020

      Note

      Failure to use SST will cause the valve stem seal to be damaged or improperly seated.

  6. INSTALL EXHAUST VALVE


    1. A01G5DYE27
      Text in Illustration
      *a 30 mm (1.18 in.) or more

      Apply a sufficient coat of engine oil to the tip area of the exhaust valve shown in the illustration.

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

      Note

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

    3. A01G8W6E01

      Using SST, compress the inner compression spring and install the 2 valve spring retainer locks.

      SST
      09202-70020
      09202-00020
    4. A01G9QN

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

      Note

      Be careful not to damage the retainer.

  7. INSTALL INTAKE VALVE


    1. A01G4MEE29
      Text in Illustration
      *a 30 mm (1.18 in.) or more

      Apply a sufficient coat of engine oil to the tip area of the intake valve shown in the illustration.

    2. Install the intake valve, inner compression spring and valve spring retainer to the cylinder head sub-assembly.

      Note

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

    3. A01G6GVE01

      Using SST, compress the inner compression spring and install the 2 valve spring retainer locks.

      SST
      09202-70020
      09202-00020
    4. A01G75K

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

      Note

      Be careful not to damage the retainer.

  8. INSTALL VALVE STEM CAP


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

    2. Install the valve stem caps on the valves.