TOYOTA AVALON 2001 Service Repair Manual

A05272
RH EX
RH IN
LH IN
LH EX 33
22Front5 5
44
A05274
RH EX
RH IN
LH IN
LH EX Front
55
44
66 11
P12919
Upward
Notch
- ENGINE MECHANICALVALVE CLEARANCE
EM-5
989 Author
: Date
:
2001 AVALON (RM808U)
(b) Turn the crankshaft 2/3 of a revolution (240°), and check
only the valves indicated in the illustration. Measure the
valve clearance. (See step (a))
(c) Turn the crankshaft a further 2/3 of a revolution (240°),
and check only the valves indicated in the illustration.
Measure the valve clearance. (See step (a))
10. ADJUST VALVE CLEARANCE
(a) Remove the adjusting shim.
(1) Turn the camshaft so that the cam lobe for the valve
to be adjusted faces up.
(2) Turn the valve lifter with a screwdriver so that the
notches are perpendicular to the camshaft.

Z09456
Front of No.1 and No.2 Cylinder
OthersSST (A)
SST (B) SST (B)
SST (A)
P12920
SST (B)
Magnetic Finger
EM0494
EM-6
- ENGINE MECHANICALVALVE CLEARANCE
990 Author
: Date
:
2001 AVALON (RM808U)
(3) Using SST (A), press down the valve lifter and place
SST (B) between the camshaft and valve lifter. Re-
move SST (A).
SST 09248-55040 (09248-05410, 09248-05420)
HINT:

Apply SST (B) at a slight angle on the side marked with
º9º or º7º, at the position shown in the illustration.

When SST (B) is inserted too deeply, it will get pinched by
the shim. To prevent it from being stuck, insert it gently
from the intake side, at a slight angle.

Using a small screwdriver and magnetic finger, remove
the adjusting shim.
(b) 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 the valve
clearance comes within the specified value.
T .......... Thickness of used 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 a thickness as close as pos-
sible to the calculated values.
HINT:
Shims are available in 17 sizes in increments of 0.050 mm
(0.0020 in.), from 2.500 mm (0.0984 in.) to 3.300 mm (0.1299
in.).

P12979
SST (A)
SST (B)
- ENGINE MECHANICALVALVE CLEARANCE
EM-7
991 Author
: Date
:
2001 AVALON (RM808U)
(c) Install a new adjusting shim.
(1) Place a new adjusting shim on the valve lifter, with
imprinted numbers facing down.
(2) Press down the valve lifter with SST (A), and re-
move SST (B).
SST 09248-55040 (09248-05410, 09248-05420)
(d) Recheck the valve clearance.
11. REINSTALL CYLINDER HEAD COVERS
(See page EM-59)
12. CONNECT UPPER RADIATOR HOSE TO WATER OUT-
LET
13. REINSTALL IGNITION COILS
14. REINSTALL AIR INTAKE CHAMBER ASSEMBLY (See
page EM-59)
15. INSTALL V-BANK COVER
(a) Using a 5 mm hexagon wrench, install the V-bank cover
with the 3 cap nuts.
(b) Press down the V-bank cover fastener.
16. REFILL WITH ENGINE COOLANT
17. START ENGINE AND CHECK FOR LEAKS
18. REINSTALL RH FENDER APRON SEAL

M00063
Adjusting Shim Selection Chart (Intake)
Intake valve clearance (Cold):
0.15 - 0.25 mm (0.006 - 0.010 in.)
EXAMPLE: The 2.800 mm (0.1102 in.) shim is installed, and
the measured clearance is 0.450 mm (0.0177 in.).
Replace the 2.800 mm (0.1102 in.) shim with a new No.12 shim.HINT: New shims have the thickness in
millimeters imprinted on the face.Thickness New shim thickness
Shim
No.Thickness
Installed shim thickness
mm (in.)
Measured clearance
mm (in.)
mm (in.)
Shim
No.
EM-8
- ENGINE MECHANICALVALVE CLEARANCE
992 Author
: Date
:
2001 AVALON (RM808U)

M00064
Adjusting Shim Selection Chart (Exhaust)
Exhaust valve clearance (Cold):
0.25 - 0.35 mm (0.010 - 0.014 in.)
EXAMPLE: The 2.800 mm (0.1102 in.) shim is installed, and
the measured clearance is 0.450 mm (0.0177 in.).
Replace the 2.800 mm (0.1102 in.) shim with a new No.10 shim.HINT: New shims have the thickness in
millimeters imprinted on the face.Thickness New shim thickness
Shim
No.Thickness
Installed shim thickness
mm (in.)
Measured clearance
mm (in.)
mm (in.)
Shim
No.
- ENGINE MECHANICALVALVE CLEARANCE
EM-9
993 Author
: Date
:
2001 AVALON (RM808U)

IG09Q-03
B07461
Camshaft Position
Sensor (Bank 2)V-Bank Cover

O-Ring
O-Ring

Non-reusable partCamshaft Position Sensor (Bank 1)
Camshaft Position Sensor
Connector
Camshaft Position Sensor
Connector
N´m (kgf´cm, ft´lbf) : Specified torque
8 (80, 69 in.´lbf)
Air Cleaner Hose
w/ Resonator
8 (80, 69 in.´lbf)
Vacuum Hose
IG-6
- IGNITIONCAMSHAFT POSITION SENSOR
1249 Author
: Date
:
2001 AVALON (RM808U)
CAMSHAFT POSITION SENSOR
COMPONENTS

IG0DN-02
A10518
5 mm
Hexagon
Wrench
B06698
- IGNITIONCAMSHAFT POSITION SENSOR
IG-7
1250 Author
: Date
:
2001 AVALON (RM808U)
REPLACEMENT
1. REMOVE V-BANK COVER
(a) Using a 5 mm hexagon wrench, remove the 3 cap nuts.
(b) Loosen the V-bank cover fastener counterclockwise.
(c) Remove the V-bank cover.
2. REMOVE AIR CLEANER HOSE WITH RESONATOR
3. REMOVE CAMSHAFT POSITION SENSORS
(a) Disconnect the 2 camshaft position sensor connectors.
(b) Remove the bolt and camshaft position sensor. Remove
the 2 camshaft position sensors.
(c) Remove the O-rings from the camshaft position sensors.
4. REINSTALL NEW CAMSHAFT POSITION SENSORS
(a) Install new O-rings to new camshaft position sensors.
(b) Install the camshaft position sensor with the bolt. Install
the 2 camshaft position sensors.
Torque: 8 N´m (80 kgf´cm, 69 in.´lbf)
(c) Connect the 2 camshaft position sensor connectors.
5. REINSTALL AIR CLEANER HOSE WITH RESONATOR
6. REINSTALL V-BANK COVER
(a) Using 5 mm hexagon wrench, install the V-bank cover
with the 3 cap nuts.
(b) Press down the V-bank cover fastener.

IG067-03
B07462
Crankshaft Position Sensor
Connector
Crankshaft Position
Sensor
RH Fender Apron Seal
8 (80, 69 in.´lbf)
N´m (kgf´cm, ft´lbf) : Specified torque
IG-8
- IGNITIONCRANKSHAFT POSITION SENSOR
1251 Author
: Date
:
2001 AVALON (RM808U)
CRANKSHAFT POSITION SENSOR
COMPONENTS

IG068-02
B06520
- IGNITIONCRANKSHAFT POSITION SENSOR
IG-9
1252 Author
: Date
:
2001 AVALON (RM808U)
REPLACEMENT
1. REMOVE RH FENDER APRON SEAL
2. REMOVE CRANKSHAFT POSITION SENSOR
(a) Disconnect the crankshaft position sensor connector.
(b) Remove the bolt and crankshaft position sensor.
3. REINSTALL NEW CRANKSHAFT POSITION SENSOR
(a) Install a new crankshaft position sensor with the bolt.
Torque: 8 N´m (80 kgf´cm, 69 in.´lbf)
(b) Connect the crankshaft position sensor connector.
4. REINSTALL RH FENDER APRON SEAL

IG09O-03
B07460
V-Bank Cover
Ignition Coil
(w/ Igniter) Ignition Coil
Connector
Gasket
8 (80, 69 in.´lbf)
N´m (kgf´cm, ft´lbf) : Specified torque
IG-4
- IGNITIONIGNITION COIL
1247 Author
: Date
:
2001 AVALON (RM808U)
IGNITION COIL
COMPONENTS