Toyota Sequoia (2005). Manual — part 662
EM0L4–09
P08885
Adhesive
15 mm (0.59 in.)
A03212
Protrusion
A05710
SST
A05711
(1)
(2)
(3)
(4)
EM–58
–
ENGINE MECHANICAL
CYLINDER HEAD
2637
REASSEMBLY
HINT:
Thoroughly clean all parts to be assembled.
Before installing the parts, apply fresh engine oil to all slid-
ing and rotating surfaces.
Replace all gaskets and oil seals with new ones.
1.
INSTALL SPARK PLUG TUBES
HINT:
When using a new cylinder head, spark plug tubes must be
installed.
(a)
Apply adhesive to the end of the spark plug tube.
Adhesive:
Part No. 08833–00070, THREE BOND 1324
or equivalent
(b)
Using a wooden block and hammer, tap in a new spark
tube until there is 40.9 – 42.1 mm (1.610 – 1.658 in.) pro-
truding from the camshaft bearing cap installation surface
of the cylinder head.
NOTICE:
Avoid tapping a new spark plug tube too far for measuring
the amount of the protrusion while tapping.
2.
INSTALL VALVES
(a)
Using SST, push in a new oil seal.
SST
09201–41020
(b)
Install the valve (1), spring seat (2), valve spring (3) and
spring retainer (4).
A05712
SST
A07306
Vinyl Tape
–
ENGINE MECHANICAL
CYLINDER HEAD
EM–59
2638
(c)
Using SST, compress the valve spring and place the 2
keepers around the valve stem.
SST
09202–70020 (09202–00010)
(d)
Using a plastic–faced hammer and the valve stem (not in
use) tip wound with vinyl tape, lightly tap the valve stem
tip to assure proper fit.
NOTICE:
Be careful not to damage the valve stem tip.
3.
INSTALL SHIMS AND VALVE LIFTERS
(a)
Install the shim and valve lifter.
(b)
Check that the valve lifter rotates smoothly by hand.
A23349
EM1X2–01
A23344
A23351
A23350
A23345
EM–60
–
ENGINE MECHANICAL
CYLINDER HEAD
2639
INSTALLATION
1.
INSTALL RH EXHAUST MANIFOLD TO CYLINDER
HEAD
(a)
Place a new gasket on the cylinder head.
(b)
Install the exhaust manifold with 8 new nuts. Uniformly
tighten the nuts in several steps.
Torque: 44 N·m (450 kgf·cm, 32 ft·lbf)
(c)
Install the heat insulator with the 4 bolts.
Torque: 7.5 N·m (76 kgf·cm, 66 in.·lbf)
2.
INSTALL LH EXHAUST MANIFOLD TO CYLINDER
HEAD
(a)
Place a new gasket on the cylinder head.
(b)
Install the exhaust manifold with 8 new nuts. Uniformly
tighten the nuts in several steps.
Torque: 44 N·m (450 kgf·cm, 32 ft·lbf)
A23352
A05563
RH Cylinder Head
LH Cylinder Head
2UR
2UL
B02642
B02644
A04229
RH Bank
LH Bank
1
7
9
4
6
5
3
10
8
2
7
9
6
5
3
10
8
2
1
4
–
ENGINE MECHANICAL
CYLINDER HEAD
EM–61
2640
(c)
Install the heat insulator with the 4 bolts.
Torque: 7.5 N·m (76 kgf·cm, 66 in.·lbf)
3.
PLACE CYLINDER HEADS ON CYLINDER BLOCK
(a)
Place 2 new cylinder head gaskets in the positions on the
cylinder block.
HINT:
On the rear side of the cylinder head gasket are marked to dis-
tinguish the LH and RH banks, a ”2UR” mark for the RH bank
and a ”2UL” mark for the LH bank.
NOTICE:
Be careful of the installation direction.
(b)
Place the 2 cylinder heads in the positions on the cylinder
head gaskets.
4.
INSTALL CYLINDER HEAD BOLTS
HINT:
The cylinder head bolts are tightened in 2 progressive
steps (steps (c) and (e)).
If any cylinder head bolt is broken or deformed, replace
it.
(a)
Apply a light coat of engine oil to the threads and under
the heads of the cylinder head bolts.
(b)
Install the plate washer to the cylinder head bolt.
(c)
Install and uniformly tighten the 10 cylinder head bolts on
one side of the cylinder head in several steps in the se-
quence shown, then perform the same procedure to the
other side as shown.
Torque: 40 N·m (408 kgf·cm, 30 ft·lbf)
If any of the cylinder head bolts does not meet the torque speci-
fication, replace the cylinder head bolt.
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