Toyota Sequoia (2005). Manual - part 652

A23307

Turn

A23308

A14391

Approx. 50

°

Idler 
Pulley 
Bolt

Timing 
Mark

Crankshaft 
Pulley Bolt

Turn

A23309

EM–18

–

ENGINE MECHANICAL

TIMING BELT

2597

16.

SET NO.1 CYLINDER TO TDC/COMPRESSION

(a)

Turn the crankshaft pulley and align its groove with timing
mark ”0” of the No.1 timing belt cover.

(b)

Check that the timing marks of the camshaft timing pul-
leys and timing belt rear plates are aligned.

If not, turn the crankshaft 1 revolution (360

°

).

(c)

Turn the crankshaft pulley approx. 50

°

 clockwise, and

align the timing mark of the crankshaft pulley with the cen-
ters of the crankshaft pulley bolt and the No.2 timing belt
idler pulley bolt.

NOTICE:
If the timing belt is disengaged, 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
remove the camshaft timing pulley (step 15), causing dam-
age. So always set the crankshaft pulley at the correct
angle.
(d)

Remove the crankshaft pulley bolt.

NOTICE:
Do not turn the crankshaft pulley.

17.

REMOVE TIMING BELT TENSIONER

HINT:

When re–using the timing belt:
If the installation marks have disappeared, before remove
the timing belt, place 2 new installation marks on the tim-
ing belt to match the timing marks of the camshaft timing
pulleys.

A23310

String

A04339

A23311

Slightly Turn

A23312

SST

–

ENGINE MECHANICAL

TIMING BELT

EM–19

2598

When replacing the timing belt tensioner only:
To avoid meshing of the timing pulley and timing belt, se-
cure one of them with string. And place matchmarks on
the timing belt and RH camshaft timing pulley.

Alternately loosen the 2 bolts, and remove them, the belt ten-
sioner and dust boot.

18.

DISCONNECT TIMING BELT FROM CAMSHAFT TIM-
ING PULLEYS

(a)

Hold the camshaft timing pulley with SST, and loosen the
tension spring between the LH and RH camshaft timing
pulleys by slightly turning the LH camshaft timing pulley
clockwise.
SST

09960–10010 (09962–01000, 09963–01000)

HINT:
Set the SST so that the claw comes in contact with the camshaft
timing pulley bolt, and tighten the lock nut of the SST.
(b)

Disconnect the timing belt from the camshaft timing pul-
leys.

19.

REMOVE CAMSHAFT TIMING PULLEYS

(a)

Hold the camshaft timing pulley with SST, loosen the 4
bolts of the timing pulley.
SST

09960–10010 (09962–01000, 09963–01000)

(b)

Remove the 2 timing pulleys.

20.

REMOVE GENERATOR (See page 

CH–7

)

21.

REMOVE DRIVE BELT TENSIONER

Remove the bolt, 2 nuts and belt tensioner.

A23313

SST

A04448

A04342

A04444

A04445

SST

EM–20

–

ENGINE MECHANICAL

TIMING BELT

2599

22.

REMOVE CRANKSHAFT PULLEY

Using SST, remove the crankshaft pulley.

SST

09950–50013 (09951–05010, 09952–05010,
09953–05010, 09953–05020, 09954–05021)

NOTICE:
Do not turn the crankshaft pulley.
23.

REMOVE NO.1 TIMING BELT COVER

Remove the 4 bolts and timing belt cover.

24.

REMOVE TIMING BELT GUIDE

25.

REMOVE TIMING BELT COVER SPACER

26.

REMOVE TIMING BELT

HINT:
If re–using the belt and the installation mark has disappeared
from it, place a new installation mark on the timing belt to the
match the dot mark of the crankshaft timing pulley.

27.

REMOVE NO.1 IDLER PULLEY AND NO.2 IDLER
PULLEY

(a)

Using a 10 mm hexagon wrench, remove the bolt, No.1
idler pulley and plate washer.

(b)

Remove the bolt and No.2 idler pulley.

28.

REMOVE CRANKSHAFT TIMING PULLEY

Using SST, remove the timing pulley.

SST

09950–50013 (09951–05010, 09952–05010,
09953–05010, 09953–05020, 09954–05011)

NOTICE:
Do not turn the timing pulley.

EM0KX–07

EM3336

NO !

P20079

P20633

–

ENGINE MECHANICAL

TIMING BELT

EM–21

2600

INSPECTION

1.

INSPECT TIMING BELT

NOTICE:

Do not bend, twist or turn the timing belt inside out.

Do not allow the timing belt to come into contact with
oil, water or steam.

Do not utilize timing belt tension when installing or re-
moving the mount bolt of the camshaft timing pulley.

If there is any defect, as shown in the illustration, check these
points:
(a)

Premature parting

Check for proper installation.

Check the timing cover gasket for damage and
proper installation.

(b)

If the belt teeth are cracked or damaged, check to see if
either camshaft is locked.

(c)

If there is noticeable wear or cracks on the belt face,
check to see if there are nicks on the side of the idler
pulley lock and water pump.

(d)

If there is wear or damage on even one side of the belt,
check the belt guide and the alignment of each pulley.

(e)

If there is noticeable wear on the belt teeth, check timing
cover for damage and for foreign material on the pulley
teeth.

If necessary, replace the timing belt.

2.

INSPECT IDLER PULLEYS

(a)

Visually check the seal portion of the idler pulley for oil
leakage.

If leakage is found, replace the idler pulley.
(b)

Check that the idler pulley turns smoothly.

If necessary, replace the idler pulley.

3.

INSPECT TIMING BELT TENSIONER

(a)

Visually check the seal portion of the tensioner for oil leak-
age.

HINT:
If there is only the faintest trace of oil on the seal on the push
rod side, the tensioner is all right.
If leakage is found, replace the tensioner.