3UR-FE Cylinder head - Reassembly

1. INSTALL STUD BOLT

2. INSTALL NO. 2 STRAIGHT SCREW PLUG

3. INSTALL NO. 1 STRAIGHT SCREW PLUG

4. INSTALL VALVE SPRING SEAT

5. INSTALL VALVE STEM OIL SEAL

6. INSTALL INTAKE VALVE

7. INSTALL EXHAUST VALVE

1. INSTALL STUD BOLT

NOTICE:

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

1. Using E7 and E8 "TORX" socket wrenches, install the stud bolts.

   Torque:

   for stud bolts A, B, C and D:

   9.0 N*m{ 92 kgf*cm , 80 in.*lbf }

   

   Text in Illustration

   *A	LH for Intake Side	*B	LH for Exhaust Side
   *C	LH for Front Side	*D	RH for Intake Side
   *E	RH for Exhaust Side	*F	RH for Front Side

2. INSTALL NO. 2 STRAIGHT SCREW PLUG

NOTICE:

If water leaks from the No. 2 straight screw plug or the plug is corroded, replace it.

1. Using a 14 mm hexagon wrench, install 2 new gaskets and the 2 straight screw plugs.

   Torque:

   85 N*m{ 867 kgf*cm , 63 ft.*lbf }

   Text in Illustration

   *A	LH
   *B	RH

3. INSTALL NO. 1 STRAIGHT SCREW PLUG

NOTICE:

If water leaks from the No. 1 straight screw plug or the plug is corroded, replace it.

1. Using a 10 mm hexagon wrench, install 6 new gaskets and the 6 straight screw plugs.

   Torque:

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

   Text in Illustration

   *A	LH
   *B	RH

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 new oil seals.

   Text in Illustration

   *A	Intake Side
   *B	Exhaust Side
   *1	Brown
   *2	Gray

   NOTICE:

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

   HINT:

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

2. Using SST, push in the oil seals.

   SST

   09201-41020

   Text in Illustration

   *a	CORRECT
   *b	INCORRECT

   NOTICE:

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

6. INSTALL INTAKE VALVE

1. 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.

   Text in Illustration

   *a	40 mm (1.57 in.) or more

   NOTICE:

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

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

   SST

   09202-70020 (09202-00010)

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

   NOTICE:

   Be careful not to damage the retainer.

7. INSTALL EXHAUST VALVE

1. 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.

   Text in Illustration

   *a	40 mm (1.57 in.) or more

   NOTICE:

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

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

   SST

   09202-70020 (09202-00010)

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

   NOTICE:

   Be careful not to damage the retainer.