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, the spark plug tubes must be replaced.


    1. A01ESQ3E01

      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
      2.0 mm (0.0787 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 coolant for at least 1 hour after installing it.

    2. A01EULME04
      Text in Illustration
      *a Cylinder Head Casting Surface

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

      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. A01EXJCE01

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

      Torque:
      9.5 N*m  { 97 kgf*cm, 84 in.*lbf }

  3. INSTALL NO. 1 STRAIGHT SCREW PLUG


    1. A01EWMW

      Using a 10 mm hexagon wrench, install 3 new gaskets and the 3 straight screw plugs.

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

  4. INSTALL NO. 2 STRAIGHT SCREW PLUG


    1. A01EYJS

      Using a 14 mm hexagon wrench, install a new gasket and the straight screw plug.

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

  5. INSTALL VALVE SPRING SEAT


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

  6. INSTALL VALVE STEM OIL SEAL


    1. A01EXNBE08
      Text in Illustration
      *a Intake
      *b Exhaust
      *c Mark "NOK"
      *d Gray
      *e Black

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

      Note

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

      Tech Tips

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

    2. A01EYK7E03
      Text in Illustration
      *a CORRECT
      *b INCORRECT

      Using SST, push in the intake and exhaust valve oil seals.

      SST
      09201-41020

      Note

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

  7. INSTALL INTAKE VALVE


    1. A01EUB5E38
      Text in Illustration
      *a 30 mm (1.18 in.) or more

      Apply plenty of engine oil to the tip area of the intake valve shown in the illustration.

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

      Note

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

    3. A01EU54E01

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

      SST
      09202-70020   ( 09202-00010 )
    4. A01EVBU

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

      Note

      Be careful not to damage the retainer.

  8. INSTALL EXHAUST VALVE


    1. A01EUB5E38
      Text in Illustration
      *a 30 mm (1.18 in.) or more

      Apply plenty of engine oil to the tip area of the exhaust valve shown in the illustration.

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

      Note

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

    3. A01EXQ3E01

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

      SST
      09202-70020   ( 09202-00010 )
    4. A01EWNI

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

      Note

      Be careful not to damage the retainer.