CYLINDER HEAD REASSEMBLY

PROCEDURE


  1. INSTALL SPARK PLUG TUBE

    Note

    When using a new cylinder head, the spark plug tubes must be replaced with new ones.


    1. B0073VOC01
      *a Standard Application Width
      *b 9.0 to 15.0 mm (0.354 to 0.591 in.)

      Apply adhesive to 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 of applying adhesive.

    2. B0073I4C03
      *a Standard Protrusion Height
      *b Cylinder Head Casting 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


      • Be careful not to deform the spark plug tube.

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

      • 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. Apply adhesive to the No. 1 straight screw plug.

      Adhesive
      Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent

      Note

      Install the No. 1 straight screw plug within 3 minutes after applying adhesive.

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

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

      Note

      Do not add engine oil at least 1 hours after installation.

  3. INSTALL NO. 2 STRAIGHT SCREW PLUG


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

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

  4. INSTALL UNION

    Tech Tips

    It is not necessary to remove the union unless it is being replaced.


    1. B0073EBC06
      *a Adhesive 1324

      Apply adhesive to the union of the cylinder head.

      Adhesive
      Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent

      Note

      Install the union within 3 minutes after applying adhesive.

    2. Using a 12 mm union nut wrench, install the union to the cylinder head as shown in the illustration.

      B0073KQC02
      *a for Bank 1 *b for Bank 2
      *c 67 mm (2.64 in.) *d 30 mm (1.18 in.)
      Torque:
      Specified tightening torque
      14.7 N*m  { 150 kgf*cm, 11 ft.*lbf }

      Tech Tips


      • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.

        Click here

      • When using a 12 mm union nut wrench (fulcrum length of 20 mm (0.787 in.)) + torque wrench (fulcrum length of 162 mm (6.38 in.)):

        13.1 N*m (134 kgf*cm, 10 ft.*lbf)

  5. INSTALL STUD BOLT

    Note

    If the stud bolt is deformed or the threads are damaged, replace it.


    1. Using E6 and E8 "TORX" socket wrenches, install the stud bolts.

      B0074JTC02
      *a for Bank 2 Rear Side *b for Bank 1 Intake Side
      *c for Bank 1 Rear Side *d for Bank 1 Exhaust Side
      *e for Bank 2 Exhaust Side *f for Bank 2 Intake Side
      *g 35 mm (1.38 in.) *h 52 mm (2.05 in.)
      *i 27 mm (1.06 in.) - -
      Torque:
      Bolt (A), (B)
      10 N*m  { 102 kgf*cm, 7 ft.*lbf }
      Bolt (C)
      4.0 N*m  { 41 kgf*cm, 35 in.*lbf }

  6. INSTALL VALVE SPRING SEAT


    1. Install the valve spring seats to the cylinder head.

  7. INSTALL INTAKE VALVE STEM OIL SEAL


    1. B00739QC02
      *a Gray
      *b Black
      *c Intake Side
      *d Exhaust Side

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

      Note

      Pay attention when installing the intake valve stem oil seal and exhaust valve stem oil seal.

      For example, installing the intake valve stem oil seal to 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. B0076JBC09
      *1 Valve Stem Oil Seal
      *a Correct
      *b Incorrect

      Using SST, push in the intake valve stem oil seals.

      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 seal at an angle.

  8. INSTALL EXHAUST VALVE STEM OIL SEAL

    Tech Tips

    Use the same procedure as for the intake side.

  9. INSTALL EXHAUST VALVE


    1. B0074O2C01
      *a 40 mm (1.57 in.) or more

      Sufficiently apply 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.

      Note

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

    3. B0074LGN06

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

      SST
      09202-70020   ( 09202-00010, 09202-01010, 09202-01020 )

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

      Note

      Be careful not to damage the retainer.

  10. INSTALL INTAKE VALVE


    1. B00776WC01
      *a 40 mm (1.57 in.) or more

      Sufficiently apply 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.

      Note

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

    3. B0075WIN05

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

      SST
      09202-70020   ( 09202-00010, 09202-01010, 09202-01020 )

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

      Note

      Be careful not to damage the retainer.