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.