CYLINDER HEAD REASSEMBLY
CAUTION / NOTICE / HINT
Tech Tips
Perform "Inspection After Repairs" after replacing the cylinder head sub-assembly or cylinder head LH.
PROCEDURE
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INSTALL SPARK PLUG TUBE
Note
When using a new cylinder head, the spark plug tubes must be replaced.
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*a 9.0 to 15.0 mm (0.354 to 0.591 in.) *b Standard Application Width 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.) Note
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Install the spark plug tube within 3 minutes after applying adhesive.
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Be careful not to deform the spark plug tube.
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Be careful not to expose the seal to coolant for at least 1 hour after installing it.
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*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 73 mm (2.87 in.) Note
To avoid tapping in the spark plug tube too far, measure the protrusion height while tapping it.
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INSTALL NO. 3 STRAIGHT SCREW PLUG
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Using a 10 mm hexagon wrench, install 8 new gaskets and the 8 No. 3 straight screw plugs.
- Torque:
- 65 N*m { 663 kgf*cm, 48 ft.*lbf }
Note
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Do not apply adhesive to the No. 3 straight screw plug.
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The cylinder head screw plug gasket for the No. 3 straight screw plug is not the same as the water hole gasket for the No. 1 straight screw plug.
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INSTALL NO. 2 STRAIGHT SCREW PLUG
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Using a 14 mm hexagon wrench, install 2 new gaskets and the 2 No. 2 straight screw plugs.
- Torque:
- 80 N*m { 816 kgf*cm, 59 ft.*lbf }
Note
Do not apply adhesive to the No. 2 straight screw plug.
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INSTALL NO. 1 STRAIGHT SCREW PLUG
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Apply adhesive to the No. 1 straight screw plug of the cylinder head.
Adhesive Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent Note
Install the 2 No. 1 straight screw plugs within 3 minutes of applying adhesive.
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Using a 10 mm hexagon wrench, install 4 new gaskets and the 4 No. 1 straight screw plugs.
- Torque:
- 44 N*m { 449 kgf*cm, 32 ft.*lbf }
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INSTALL UNION
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Apply adhesive to the union of the cylinder head.
Adhesive Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent -
Using a union nut wrench (12 mm), install the union to the cylinder head as shown in the illustration.
*A for Bank 1 *B for Bank 2 *a 55 mm (2.17 in.) *b 30 mm (1.18 in.) - Torque:
- Specified tightening torque
- 14.7 N*m { 150 kgf*cm, 11 ft.*lbf }
Tech Tips
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Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.
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When using a union nut wrench (fulcrum length of 20 mm (0.787 in.)) + torque wrench (fulcrum length of 300 mm (11.811 in.)): 13.8 N*m (141 kgf*cm, 10 ft.*lbf)
*a Torque Wrench Fulcrum Length
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INSTALL STUD BOLT
Note
If the stud bolt is deformed or the threads are damaged, replace it.
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Using E6 and E8 "TORX" socket wrenches, install the stud bolts.
*a Intake Side RH *b Intake Side LH *c Exhaust Side RH *d Exhaust Side LH *e Rear Side RH *f Rear Side LH *g 26 mm (1.02 in.) *h 16.7 mm (0.66 in.) *i 51.7 mm (2.04 in.) *j 20 mm (0.79 in.) *k 13 mm (0.51 in.) *l 35 mm (1.38 in.) *m 16 mm (0.63 in.) *n 9 mm (0.35 in.) *o 27 mm (1.02 in.) - - - Torque:
- for stud bolt A, B
- 10 N*m { 102 kgf*cm, 7 ft.*lbf }
- for stud bolt C
- 4.0 N*m { 41 kgf*cm, 35 in.*lbf }
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INSTALL VALVE SPRING SEAT
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Install the valve spring seats to the cylinder head.
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INSTALL VALVE STEM OIL SEAL
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*a Gray *b Black *c Intake Side *d Exhaust Side Apply a light coat of engine oil to new valve stem oil seals.
Note
Pay attention when installing the intake and exhaust valve stem oil seals. 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 oil seals are gray and the exhaust valve oil seals are black.
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*a CORRECT *b INCORRECT Using SST, push in the oil seals.
- SST
- 09201-41020
Note
Failure to use SST will cause the seal to be damaged or improperly seated.
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INSTALL EXHAUST VALVE
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*a 30 mm (1.18 in.) or more Apply a sufficient coat of engine oil to the tip area of the exhaust valve shown in the illustration.
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*1 Valve Spring Retainer *2 Inner Compression Spring *3 Cylinder Head 
Top 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.
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Using SST, compress the inner compression spring and install the 2 valve spring retainer locks.
- SST
- 09202-70020 ( 09202-01010, 09202-01020 )
- 09202-00021
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Using a plastic-faced hammer, lightly tap the valve stem tip to ensure a proper fit.
Note
Be careful not to damage the retainer.
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INSTALL INTAKE VALVE
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*a 30 mm (1.18 in.) or more Apply a sufficient coat of engine oil to the tip area of the intake valve shown in the illustration.
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*1 Valve Spring Retainer *2 Inner Compression Spring *3 Cylinder Head Top 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.
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Using SST, compress the inner compression spring and install the 2 valve spring retainer locks.
- SST
- 09202-70020 ( 09202-01010, 09202-01020 )
- 09202-00021
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Using a plastic-faced hammer, lightly tap the valve stem tip to ensure a proper fit.
Note
Be careful not to damage the retainer.
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