Reassembly

4GR-FSE ENGINE MECHANICAL: CYLINDER HEAD: REASSEMBLY

1. INSTALL SPARK PLUG TUBE

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

(a) 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 0.1181 in.)

NOTICE:
* Install the spark plug tube within 3 minutes of 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.

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





Text in Illustration





Standard protrusion height:

72.9 mm (2.8701 in.)

NOTICE:
To avoid tapping in the spark plug tube too far, measure the protrusion height while tapping it.

2. INSTALL NO. 1 STRAIGHT SCREW PLUG

(a) Using a 10 mm hexagon wrench, install 4 new gaskets and the 4 No. 1 straight screw plugs.





Torque : 44 Nm (449 kgf-cm, 32 ft-lbf)

3. INSTALL NO. 2 STRAIGHT SCREW PLUG

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





Torque : 80 Nm (816 kgf-cm, 59 ft-lbf)

4. INSTALL VALVE SPRING SEAT

(a) Install the valve spring seats to the cylinder head.

5. INSTALL VALVE STEM OIL SEAL

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





Text in Illustration





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

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

(b) Using SST, push in the oil seals.





SST : 09201-41020

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

6. INSTALL EXHAUST VALVE

(a) Apply a sufficient coat of engine oil to the tip area of the exhaust valve shown in the illustration.





(b) Install the exhaust valve, inner compression spring and valve spring retainer to the cylinder head.

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

(c) Using SST, compress the inner compression spring and install the 2 valve spring retainer locks.





SST : 09202-70020

09202-00010

09202-01010

09202-01020

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





NOTICE:
Be careful not to damage the retainer.

7. INSTALL INTAKE VALVE

(a) Apply a sufficient coat of engine oil to the tip area of the intake valve shown in the illustration.





(b) Install the intake valve, inner compression spring and valve spring retainer to the cylinder head.

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

(c) Using SST, compress the inner compression spring and install the 2 valve spring retainer locks.





SST : 09202-70020

09202-00010

09202-01010

09202-01020

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





NOTICE:
Be careful not to damage the retainer.

8. INSTALL VALVE STEM CAP

(a) Apply a light coat of engine oil to the valve stem caps.

(b) Install the valve stem caps on the valves.