CYLINDER HEAD REASSEMBLY

CAUTION / NOTICE / HINT

Tech Tips

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

Click here

PROCEDURE


  1. INSTALL SPARK PLUG TUBE

    Tech Tips

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


    1. A01QV1QN01
      *1 1.0 to 3.0 mm
      *2 1.0 to 3.0 mm (0.0394 to 0.118 in.)

      Apply adhesive to a new spark plug tube as 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.

      • Do not expose the spark plug tube to engine oil for at least 1 hour after installing it.

    2. A01QW0NC12
      *a Cylinder Head Casting Surface

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

      Standard Protrusion Height
      112 mm (4.41 in.)

      Note

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

  2. INSTALL CYLINDER HEAD STUD BOLT


    1. A01QVSXN12
      *1 18 mm (0.708 in.)
      *2 33 mm (1.299 in.)
      *3 13 mm (0.512 in.)

      Using an E7 "TORX" socket wrench, install the 5 cylinder head stud bolts.

      Torque:
      6.5 N*m  { 66 kgf*cm, 58 in.*lbf }

  3. INSTALL NO. 1 STRAIGHT SCREW PLUG


    1. A01QW1N

      Using a 10 mm hexagon wrench, install 3 new gaskets and the 3 No. 1 straight screw plugs.

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

  4. INSTALL NO. 2 STRAIGHT SCREW PLUG


    1. A01QWIK

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

      Torque:
      78 N*m  { 795 kgf*cm, 58 ft.*lbf }

  5. INSTALL VALVE SPRING SEAT


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

  6. INSTALL VALVE STEM OIL SEAL


    1. A01QVJGC15
      *a Intake Valve Stem Oil Seal
      *b Exhaust Valve Stem Oil Seal
      *c Gray
      *d Black

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

      Note

      Pay attention when installing the valve stem oil seals. For example, installing an intake valve stem oil seal onto the exhaust side or installing an exhaust valve stem oil seal onto 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. A01QV6MC10
      *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.

  7. INSTALL INTAKE VALVE


    1. A01QUTJC18
      *a 30 mm (1.18 in.) or more

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

    2. Install the intake valve, 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. A01QVTZE01

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

      SST
      09202-70020   ( 09202-00010 )
    4. A01QVYZ

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

      Note

      Be careful not to damage the valve spring retainer.

  8. INSTALL EXHAUST VALVE


    1. A01QUTJC19
      *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. Install the exhaust valve, 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. A01QVDBE01

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

      SST
      09202-70020   ( 09202-00010 )
    4. A01QV86

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

      Note

      Be careful not to damage the valve spring retainer.