2001 TOYOTA SEQUOIA cam

A05717
RH Cylinder Head
LH Cylinder HeadFront
A04457
RH Cylinder Head
LH Cylinder Head
Front
± ENGINE MECHANICALVALVE CLEARANCE
EM±5
2584 Author: Date:
2005 SEQUOIA (RM1146U)
9. INSPECT VALVE CLEARANCE
(a) Check only the valves indicated.

Using a feeler gauge, measure the clearance be-
tween the valve lifter and camshaft.

Record the out±of±specification valve clearance
measurements. They will be used later to determine
the required replacement adjusting shim.
Valve clearance (Cold):
Intake0.15 ± 0.25 mm (0.006 ± 0.010 in.)
Exhaust0.25 ± 0.35 mm (0.010 ± 0.014 in.)
(b) Turn the crankshaft 1 revolution (360°) and align the mark
as above. (See procedure in step 8)
(c) Check only the valves indicated as shown. Measure the
valve clearance. (See procedure in step (a))

A02213
EM±6
± ENGINE MECHANICALVALVE CLEARANCE
2585 Author: Date:
2005 SEQUOIA (RM1146U)
10. ADJUST VALVE CLEARANCE
(a) Remove the timing belt. (See page EM±16)
(b) Remove the camshafts. (See page EM±36)
(c) Remove the valve lifter and adjusting shim.
(d) Determine the replacement adjusting shim size according
to these Formula or Charts:
(1) Using a micrometer, measure the thickness of the
removed shim.
(2) Calculate the thickness of a new shim so that the
valve clearance comes within the specified value.
T ........... Thickness of removed shim
A ........... Measured valve clearance
N ........... Thickness of new shim
Intake: N = T + (A ± 0.20 mm (0.008 in.))
Exhaust: N = T + (A ± 0.30 mm (0.012 in.))
(3) Select a new shim with thickness as close as pos-
sible to the calculated value.
HINT:
Shims are available in 41 increments of 0.020 mm (0.0008 in.),
from 2.00 mm (0.0787 in.) to 2.80 mm (0.1102 in.).
(e) Place a new adjusting shim on the valve.
(f) Place the valve lifter.
(g) Reinstall the camshafts. (See page EM±60)
(h) Reinstall the timing belt. (See page EM±23)
(i) Recheck the valve clearance.
11. REINSTALL CYLINDER HEAD COVERS
12. REINSTALL IGNITION COILS
13. REINSTALL NO.3 TIMING BELT COVERS
(See page EM±23)
14. REINSTALL AIR CLEANER AND INTAKE AIR
CONNECTOR ASSEMBLY
15. REINSTALL THROTTLE BODY COVER
16. REINSTALL BATTERY CLAMP COVER

A23302
RH No.3 Timing Belt Cover
No.2 Timing
Belt Cover
LH No.3 Timing Belt Cover Drive Belt Idler Pulley
Camshaft Position
Sensor ConnectorCover Plate
Oil Cooler Pipe Engine Wire
7.5 (76, 66 in.´lbf)
16 (160, 12)
7.5 (76, 66 in.´lbf)
N´m (kgf´cm, ft´lbf) : Specified torque
Wire Grommet
39 (400, 29)
A23303
Timing BeltLH Camshaft Timing Pulley
Timing Belt Tensioner
Dust Boot
245 (2,500, 181)
16 (160, 12)
32 (330, 24)
RH Camshaft Timing Pulley
26 (270, 19)Fan Bracket
N´m (kgf´cm, ft´lbf) : Specified torque
8.1 (83, 72 in.´lbf)
EM±14
± ENGINE MECHANICALTIMING BELT
2593 Author: Date:
2005 SEQUOIA (RM1146U)

EM1WX±01
A08934
A04329
A04331
EM±16
± ENGINE MECHANICALTIMING BELT
2595 Author: Date:
2005 SEQUOIA (RM1146U)
REMOVAL
1. REMOVE ENGINE UNDER COVER
2. DRAIN ENGINE COOLANT
3. REMOVE RADIATOR ASSEMBLY (See page CO±17)
4. REMOVE THROTTLE BODY COVER
5. REMOVE INTAKE AIR CONNECTOR ASSEMBLY
6. REMOVE DRIVE BELT, FAN, FLUID COUPLING AND
FAN PULLEY
(a) Loosen the 4 nuts holding the fluid coupling to the fan
bracket.
(b) Remove the drive belt. (See page CH±7)
(c) Remove the 4 nuts, the fan, fluid coupling assembly and
fan pulley.
7. DISCONNECT PS PUMP
Remove the 3 bolts, and disconnect the PS pump from the en-
gine.
HINT:
Suspend the PS pump securely.
8. REMOVE DRIVE BELT IDLER PULLEY
Remove the pulley bolt, cover plate and idler pulley.
9. REMOVE RH NO.3 TIMING BELT COVER
Remove the 3 bolts, nut and RH No.3 timing belt cover.
10. REMOVE LH NO.3 TIMING BELT COVER
(a) Disconnect the engine wire from the 2 wire clamps.
(b) Remove the 4 bolts and nut.
(c) Disconnect the camshaft position sensor wire from the
wire clamp on the LH No.3 timing belt cover.
(d) Disconnect the camshaft position sensor connector from
the connector bracket.
(e) Disconnect the camshaft position sensor connector.
(f) Remove the wire grommet from the LH No.3 timing belt
cover.

A23307Turn
A23308
A14391
Approx. 50°Idler
Pulley
Bolt
Timing
Mark
Crankshaft
Pulley Bolt
Turn
A23309
EM±18
± ENGINE MECHANICALTIMING BELT
2597 Author: Date:
2005 SEQUOIA (RM1146U)
16. SET NO.1 CYLINDER TO TDC/COMPRESSION
(a) Turn the crankshaft pulley and align its groove with timing
mark º0º 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 MECHANICALTIMING BELT
EM±19
2598 Author: Date:
2005 SEQUOIA (RM1146U)

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.

EM0KX±07
EM3336
NO !
P20079
P20633
± ENGINE MECHANICALTIMING BELT
EM±21
2600 Author: Date:
2005 SEQUOIA (RM1146U)
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.

A04448
A23314
SST
A08660
A23315
SST
EM±24
± ENGINE MECHANICALTIMING BELT
2603 Author: Date:
2005 SEQUOIA (RM1146U)
5. INSTALL TIMING BELT GUIDE
Install the belt guide with the cup side facing outward.
6. INSTALL NO.1 TIMING BELT COVER
Install the timing belt cover with the 4 bolts.
7. INSTALL CRANKSHAFT PULLEY
(a) Align the pulley set key with the key groove of the crank-
shaft pulley.
(b) Using SST and a hammer, tap in the crankshaft pulley.
SST 09223±46011
8. INSTALL DRIVE BELT TENSIONER
Install the belt tensioner with the bolt and 2 nuts.
Torque: 26 N´m (265 kgf´cm, 19 ft´lbf)
HINT:
Use a bolt of 106 mm (4.18 in.) in length.
9. INSTALL GENERATOR (See page CH±16)
10. CHECK CRANKSHAFT PULLEY POSITION
Check that the timing mark of the crankshaft pulley is aligned
with timing mark º0º of the No.1 timing belt cover.
11. INSTALL, LH CAMSHAFT TIMING PULLEY
(a) Align the camshaft knock pin with the knock pin groove of
the timing pulley, and slide the timing pulley.
(b) Temporarily install the 4 bolts of the camshaft timing
pulley.
(c) Hold the camshaft timing pulley with SST, and tighten the
pulley bolt.
SST 09960±10010 (09962±01000, 09963±01000)
Torque: 8.1 N´m (83 kgf´cm, 72 in.´lbf)