Reassembly

1NR-FE ENGINE MECHANICAL: CYLINDER HEAD: REASSEMBLY

1. INSTALL SPARK PLUG TUBE

HINT
When replacing the cylinder head with a new one, perform the following procedure.

(a) Using paint, mark the standard position from the edge.





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Standard protrusion height:

88.7 to 90.2 mm (3.492 to 3.551 in.)

(b) Apply adhesive to the spark plug tube where it will be pressed into the cylinder head.





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Adhesive:

Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent

(c) Using a press and wooden block, install the spark plug tube to the required protrusion height.





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Standard protrusion height:

88.7 to 90.2 mm (3.492 to 3.551 in.)

NOTICE:
* Install the spark plug tube within 3 minutes after applying adhesive.
* Do not start the engine within 1 hour after installation.
* Do not deform the spark plug tube.
* Be careful not to drip the adhesive.

2. INSTALL VALVE SPRING SEAT

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





3. INSTALL VALVE STEM OIL SEAL

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





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NOTICE:
Pay close attention when installing the intake and exhaust oil seals. Installing the intake oil seal into the exhaust side or installing the exhaust oil seal to the intake side may cause installation problems later.

HINT
The intake valve oil seal is gray and the exhaust valve oil seal is black.

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





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SST : 09201-41020

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

4. INSTALL INTAKE VALVE

(a) Sufficiently apply engine oil to the tip area of the intake valve shown in the illustration.





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

NOTICE:
Install the same parts to their original positions.

(c) Using SST and wooden blocks, compress the spring and install the 2 retainer locks.





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SST : 09202-70020

09202-00010

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





NOTICE:
* Be careful not to damage the valve stem tip.
* Be careful not to tap the retainer.

5. INSTALL EXHAUST VALVE

(a) Sufficiently apply engine oil to the tip area of the exhaust valve shown in the illustration.





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

NOTICE:
Install the same parts to their original positions.

(c) Using SST and wooden blocks, compress the spring and install the 2 retainer locks.





Text in Illustration





SST : 09202-70020

09202-00010

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





NOTICE:
* Be careful not to damage the valve stem tip.
* Be careful not to tap the retainer.

6. INSTALL VALVE STEM CAP

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





(b) Install the valve stem caps to the cylinder head.