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Home >> Lexus >> 2012 >> LS 600h V8-5.0L (2UR-FSE) Hybrid >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Seals and Gaskets >> Cylinder Head Gasket >> Service and Repair >> Cylinder Head Gasket (for Bank 1) >> Removal

Removal





2UR-FSE ENGINE MECHANICAL: CYLINDER HEAD GASKET (for Bank 1): REMOVAL

HINT
When viewed from the rear of the engine assembly, Bank 1 is on the left side and Bank 2 is on the right side.

1. 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:
* w/ Navigation System (for HDD):
After the power switch is turned off, the display and navigation module display (HDD navigation system) records various types of memory and settings. As a result, after turning the power switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) battery terminal.

Waiting Time before Disconnecting Cable from Negative (-) Battery Terminal:





* When disconnecting the cable, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.

2. REMOVE SERVICE PLUG GRIP

(a) Remove the service plug grip Removal.

3. REMOVE CAMSHAFT (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 LH

(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.
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