Last Modified: 11-29-2007 1.6 A
Service Category: Engine/Hybrid System Section: Engine Mechanical
Model Year: 2008 Model: Sequoia Doc ID: RM000002OP800GX
Title: 3UR-FE ENGINE MECHANICAL: CYLINDER HEAD: DISASSEMBLY (2008 Sequoia)

DISASSEMBLY

1. REMOVE INTAKE VALVE


(a) Using SST and wooden blocks, compress the compression spring and remove the valve retainer locks.

SST: 09202-70020

(b) Remove the retainer, compression spring and valve.

HINT:

Arrange the removed parts in the correct order.

2. REMOVE EXHAUST VALVE


(a) Using SST and wooden blocks, compress the compression spring and remove the valve retainer locks.

SST: 09202-70020

(b) Remove the retainer, compression spring and valve.

HINT:

Arrange the removed parts in the correct order.

3. REMOVE VALVE STEM OIL SEAL


(a) Using needle-nose pliers, remove the oil seals.

4. REMOVE VALVE SPRING SEAT


(a) Using compressed air and a magnetic finger, remove the valve spring seat by blowing air onto it.

5. REMOVE NO. 1 STRAIGHT SCREW PLUG

NOTICE:

If water leaks from the No. 1 screw plug or the plug is corroded, replace it.


(a) Using a 10 mm hexagon wrench, remove the 6 screw plugs and 6 gaskets.

6. REMOVE NO. 2 STRAIGHT SCREW PLUG


(a) Using a 14 mm hexagon wrench, remove the 2 screw plugs and 2 gaskets.

NOTICE:

If water leaks from the No. 2 screw plug or the plug is corroded, replace it.

7. REMOVE STUD BOLT

NOTICE:

If the stud bolt is deformed or its threads are damaged, replace it.