Toyota Sequoia (2005). Manual — part 663
B02643
B02645
A04230
RH Bank
LH Bank
Portion A
Portion A
A04093
Painted Mark
90
°
90
°
Front
A02888
Camshaft Gear Spring
Wave Washer
Camshaft Sub–gear
A02861
EM–62
–
ENGINE MECHANICAL
CYLINDER HEAD
2641
NOTICE:
Do not drop the plate washer for cylinder head bolt into por-
tion A of the cylinder head. If dropped into portion A, the
plate washer will pass through the cylinder head and cylin-
der block into the oil pan.
(d)
Mark the front of the cylinder head bolt with paint.
(e)
Retighten the cylinder head bolts by 90
°
in the numerical
order shown.
(f)
Check that the painted mark is now at a 90
°
angle to front.
5.
INSTALL SPARK PLUGS
6.
ASSEMBLE EXHAUST CAMSHAFT
(a)
Install the camshaft gear spring, camshaft sub–gear and
wave washer.
HINT:
Attach the pin on the gear to the gear spring end.
(b)
Using snap ring pliers, install the snap ring.
A02859
A02889
Service Bolt
SST
Sub Gear
Main Gear
Turn
A23353
Front
A23343
5 mm Hexagon
Wrench
SST
A03173
–
ENGINE MECHANICAL
CYLINDER HEAD
EM–63
2642
(c)
Mount the hexagon wrench head portion of the camshaft
in a vise.
NOTICE:
Be careful not to damage the camshaft.
(d)
Using SST, align the holes of the camshaft main gear and
sub–gear by turning the camshaft sub–gear counter-
clockwise, and temporarily install a service bolt.
SST
09960–10010 (09962–01000, 09963–00500)
(e)
Align the gear teeth of the main gear and sub–gear, and
tighten the service bolt.
7.
INSTALL CAMSHAFT TIMING TUBE TO INTAKE CAM-
SHAFT
(a)
Place a new oil seal to the timing tube.
NOTICE:
Be careful of the installation direction.
(b)
Align the timing tube knock pin with the knock pin groove
of the drive gear, and temporarily install the drive gear
with the 4 bolts.
(c)
Using SST and a 5 mm hexagon wrench, uniformly tight-
en the 4 bolts in several steps.
SST
09960–10010 (09962–01000, 09963–00500)
Torque: 7.5 N·m (76 kgf·cm, 66 in.·lbf)
NOTICE:
Be careful not to damage the timing tube.
(d)
Mount the hexagon head portion of the camshaft in a vise.
NOTICE:
Be careful not to damage the camshaft.
A23342
10 mm Hexagon
Wrench
A14399
Timing Mark
Crankshaft
Pulley Bolt
Turn
Idler Pulley Bolt
A23354
B02636
Seal Packing
EM–64
–
ENGINE MECHANICAL
CYLINDER HEAD
2643
(e)
Align the camshaft knock pin with the knock pin groove of
the timing tube, and push the timing tube by hand until you
it touches the bottom.
(f)
Using a 10 mm hexagon wrench, install the bolt.
Torque: 78 N·m (790 kgf·cm, 58 ft·lbf)
(g)
Install the seal washer and screw plug.
Torque: 15 N·m (150 kgf·cm, 11 ft·lbf)
8.
INSTALL CAMSHAFTS
NOTICE:
Since the thrust clearance of the camshaft is small, the
camshaft must be kept level while it is being installed. If the
camshaft is not kept level, the portion of the cylinder head
receiving the shaft thrust may crack or be damaged, caus-
ing the camshaft to seize or break. To avoid this, the follow-
ing steps should be carried out.
(a)
Set the crankshaft pulley position.
Turn the pulley clockwise or counterclockwise, and align
the timing mark of the crankshaft pulley with the centers
of the crankshaft pulley bolt and idler pulley bolt.
NOTICE:
Having the crankshaft pulley at the wrong angle can cause
the piston head and valve head to come into contact with
each other when you install the camshaft, causing dam-
age. So always set the crankshaft pulley at the correct
angle.
(b)
Install the LH camshafts.
(1)
Apply MP grease to the thrust portion of the intake
and exhaust camshafts.
(2)
Align the timing marks (2–dot mark) of the camshaft
drive and driven main gears, and place the intake
and exhaust camshafts.
(3)
Apply seal packing to the camshaft housing plug.
Remove the old packing material (FIPG).
Apply seal packing to the housing plug.
Seal packing: Part No. 08826–00080 or equivalent
A23355
A16831
Seal Packing
Seal Width
1.5 mm
A23356
–
ENGINE MECHANICAL
CYLINDER HEAD
EM–65
2644
(4)
Install the camshaft housing plug to the cylinder
head as shown in the illustration.
(5)
Install the strainer to the cylinder head.
NOTICE:
Be careful of the installation direction.
(6)
Apply seal packing to the front bearing cap.
Remove any old packing material (FIPG) and
be careful not to drop any oil on the contact
surfaces of the bearing cap and cylinder
head.
Using a razor blade and gasket scraper, re-
move all the old packing material (FIPG) from
the gasket surfaces and groove.
Thoroughly clean all components to remove
all the loose material.
Using a non–residue solvent, clean both
sealing surfaces.
Apply seal packing to the bearing cap as
shown in the illustration.
Install a nozzle that has been cut to a 1.5 mm
(0.059 in.) opening.
Parts must be assembled within 5 minutes of
application. Otherwise the material must be
removed and reapplied.
Immediately remove the nozzle from the tube
and reinstall cap.
Seal packing: Part No. 08826–00080 or equivalent
NOTICE:
Do not apply seal packing to the front bearing cap grooves.
(7)
Install the front bearing cap.
HINT:
Installing the front bearing cap will determine the thrust portion
of the camshaft.
(8)
Install the other bearing caps in the sequence
shown with the arrow mark facing forward.
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