CYLINDER HEAD REASSEMBLY

CAUTION / NOTICE / HINT

Tip:

Perform "Inspection After Repairs" after replacing the cylinder head sub-assembly (Click here).

PROCEDURE

  1. INSTALL STUD BOLT

    Note:

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

    1. Using an E8 "TORX" socket, install the stud bolts.

      U121287E01

      9.5 N*m

      97 kgf*cm

      84 in.*lbf

  2. REPLACE SPARK PLUG TUBE

    A211988E28
    Note:

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

    1. 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.)

      Distance

      1.0 to 7.0 mm (0.0394 to 0.294 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 the tube.

    2. A205906E02

      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.

  3. INSTALL NO. 2 STRAIGHT SCREW PLUG

    A150950
    Note:

    If water leaks from the straight screw plug or the plug is corroded, replace it.

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

      44 N*m

      449 kgf*cm

      32 ft.*lbf

  4. INSTALL VALVE SPRING SEAT

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

  5. INSTALL VALVE STEM OIL SEAL

    1. Apply a light coat of engine oil to a new oil seal.

      A317705E01
      Note:

      Pay close attention when installing the intake and exhaust 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.

      Tip:

      • for Intake Side:

        The intake side valve stem oil seals is gray or green.

      • for Exhaust Side:

        The exhaust side valve stem oil seals is black or brown.

    2. A150956E01

      Using SST, push on the oil seal.

      09201-41020

      Note:

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

  6. INSTALL INTAKE VALVE

    1. Place the cylinder head on wooden blocks.

    2. A383473E03

      Apply engine oil to each valve over an area 30 mm (1.18 in.) or more from its tip, as shown in the illustration.

    3. A340612E02

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

      Note:

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

    4. A340610E01

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

      09202-70020

      09202-00021

    5. A340613

      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 EXHAUST VALVE

    1. Place the cylinder head on wooden blocks.

    2. A383474E03

      Apply engine oil to each valve over an area 30 mm (1.18 in.) or more from its tip, as shown in the illustration.

    3. A340614E02

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

      Note:

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

    4. A340611E01

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

      09202-70020

      09202-00021

    5. A340615

      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.