Removal

1UR-FSE ENGINE MECHANICAL: CYLINDER HEAD GASKET (for Bank 1): REMOVAL

1. DISCHARGE FUEL SYSTEM PRESSURE Removal

2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

NOTICE:
After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.

3. REMOVE CAMSHAFT SUB-ASSEMBLY (for Bank 1)

(a) Remove the camshaft Removal.

4. REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY

(a) Remove the 16 valve rocker arms from the cylinder head.

HINT
Arrange the removed parts in the correct order.

5. REMOVE VALVE LASH ADJUSTER ASSEMBLY

(a) Remove the 16 valve lash adjusters from the cylinder head.

HINT
Arrange the removed parts in the correct order.

6. REMOVE VALVE STEM CAP

(a) Remove the 16 valve stem caps from the cylinder head.

HINT
Arrange the removed parts in the correct order.

7. REMOVE CYLINDER HEAD SUB-ASSEMBLY (for Bank 1)

(a) Uniformly loosen and remove the 2 bolts in the sequence shown in the illustration.





(b) Using a 10 mm bi-hexagon wrench, uniformly loosen the 10 bolts in the sequence shown in the illustration. Remove the 10 cylinder head bolts and plate washers.





NOTICE:
* Be careful not to drop washers into the cylinder head.
* Head warpage or cracking could result from removing bolts in an incorrect order.

HINT
Be sure to keep the removed parts separate for each installation position.

(c) Remove the cylinder head and gasket.