Page 1897 of 3115
EM1VA-01
A02247
A04329
- ENGINE MECHANICALTIMING BELT
EM-15
1588 Author: Date:
2004 LAND CRUISER (RM1071U)
REMOVAL
1. REMOVE OIL PAN PROTECTOR
2. REMOVE ENGINE UNDER COVER
3. DRAIN ENGINE COOLANT
4. REMOVE BATTERY CLAMP COVER
5. REMOVE V-BANK COVER
(a) Remove the fuel return hose from the V-bank cover.
(b) Remove the 2 bolt, 2 cap nuts and V-bank cover.
6. REMOVE AIR CLEANER AND INTAKE AIR CONNEC-
TOR ASSEMBLY
7. 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 generator drive belt.
(See page CH-7)
(c) Remove the 4 nuts, the fan, the fluid coupling assembly
and the fan pulley.
8. REMOVE RADIATOR ASSEMBLY
(See page CO-17)
9. REMOVE DRIVE BELT IDLER PULLEY
Remove the pulley bolt, the cover plate and the idler pulley.
10. REMOVE RH NO.3 TIMING BELT COVER
Remove the 3 bolts, the nut and the RH No.3 timing belt cover.
Page 1898 of 3115

A04331
A04330
A04455
A04332
EM-16
- ENGINE MECHANICALTIMING BELT
1589 Author: Date:
2004 LAND CRUISER (RM1071U)
11. REMOVE LH NO.3 TIMING BELT COVER
(a) Disconnect the engine wire from the 2 wire clamps.
(b) Remove the 4 bolts and the nut.
(c) Disconnect the camshaft position sensor wire from the
wire clamp on the LH No.3 timing belt cover.
(d) Disconnect the 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.
(g) Remove the LH No.3 timing belt cover.
(h) Remove the oil cooler pipe and the 2 bolts.
12. REMOVE NO.2 TIMING BELT COVER
Remove the 2 bolts and the No.2 timing belt cover.
13. DISCONNECT A/C COMPRESSOR FROM ENGINE
(See page EM-77)
14. REMOVE FAN BRACKET
Remove the 2 bolts, the 2 nuts and the fan bracket.
15. IF RE-USING TIMING BELT, CHECK
INSTALLATION MARKS ON TIMING BELT
Check that there are 3 installation marks on the timing belt as
turning the crankshaft pulley as shown in the illustration.
HINT:
If the installation marks are disappeared, place a new installa-
tion mark on the timing belt before removing each part.
Page 1899 of 3115

A09156
SST
A08597
Turn
A04335
A04337
A04338
String
- ENGINE MECHANICALTIMING BELT
EM-17
1590 Author: Date:
2004 LAND CRUISER (RM1071U)
16. LOOSEN CRANKSHAFT PULLEY BOLT
Using SST, loosen the pulley bolt.
SST 09213-7001 1 (90105-70020),
09330-00021
17. SET NO.1 CYLINDER TO TDC/COMPRESSION
(a) Turn the crankshaft pulley and align its groove with the
timing mark º0º of the No.1 timing belt cover.
(b) Check that the timing marks of the camshaft timing pul-
leys and that of the timing belt rear plates aligned.
If not, turn the crankshaft 1 revolution (360°).
(c) Remove the crankshaft pulley bolt.
NOTICE:
Do not turn the crankshaft pulley.
18. REMOVE TIMING BELT TENSIONER
HINT:
When re-using timing belt:
If the installation marks are disappeared, place 2 new
installation marks on the timing belt to match the timing
marks of the camshaft timing pulleys before the removal.
When replacing timing belt tensioner only:
To avoid meshing of the timing pulley and the timing belt,
secure one of them with string, and then place match-
marks on the timing belt and the RH camshaft timing
pulley.
Page 1900 of 3115

A04339
A05707
Slightly Turn
A04340
SST
A04341
SST
A04448
EM-18
- ENGINE MECHANICALTIMING BELT
1591 Author: Date:
2004 LAND CRUISER (RM1071U)
Alternately loosen the 2 bolts, and remove the belt tensioner
and the dust boot.
19. DISCONNECT TIMING BELT FROM CAMSHAFT
TIMING PULLEYS
(a) Using SST, 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)
(b) Disconnect the timing belt from the camshaft timing pul-
leys.
20. REMOVE CAMSHAFT TIMING PULLEYS
Using SST, remove the bolt and the timing pulley. Remove the
2 timing pulleys.
SST 09960-10010 (09962-01000, 09963-01000)
21. REMOVE GENERATOR
(See page CH-7)
22. REMOVE DRIVE BELT TENSIONER
Remove the bolt, 2 nuts and the belt tensioner.
23. REMOVE CRANKSHAFT PULLEY
Using SST, remove the crankshaft pulley.
SST 09950-50013 (09951-05010, 09952-05010,
09953-05010, 09954-05011, 09953-05020,
09954-05021)
NOTICE:
Do not turn the crankshaft pulley.
24. REMOVE NO.1 TIMING BELT COVER
Remove the 4 bolts and the timing belt cover.
25. REMOVE TIMING BELT GUIDE
26. REMOVE TIMING BELT COVER SPACER
Page 1901 of 3115
A04342
A04444
A04445SST
- ENGINE MECHANICALTIMING BELT
EM-19
1592 Author: Date:
2004 LAND CRUISER (RM1071U)
27. REMOVE TIMING BELT
HINT:
If re-using the belt and the installation mark is disappeared
from it, place a new installation mark on the timing belt to the
match the dot mark on the crankshaft timing pulley.
28. REMOVE NO.1 IDLER PULLEY AND NO.2 IDLER
PULLEY
(a) Using a 10 mm hexagon wrench, remove the bolt, the
No.1 idler pulley and the plate washer.
(b) Remove the bolt and the No.2 idler pulley.
29. REMOVE CRANKSHAFT TIMING PULLEY
Using SST, remove the timing pulley.
SST 09950-50013 (09951-05010, 09952-05010,
09953-05010, 09953-05020, 09954-05011,
09954-05021)
NOTICE:
Do not turn the timing pulley.
Page 1902 of 3115

EM0KS-08
A04324
A04325
EM-4
- ENGINE MECHANICALVALVE CLEARANCE
1577 Author: Date:
2004 LAND CRUISER (RM1071U)
VALVE CLEARANCE
INSPECTION
HINT:
Inspect and adjust the valve clearance when the engine is cold.
1. DRAIN ENGINE COOLANT
2. REMOVE BATTERY CLAMP COVER
3. REMOVE V-BANK COVER
4. REMOVE AIR CLEANER AND INTAKE AIR CONNEC-
TOR ASSEMBLY
5. REMOVE NO.3 TIMING BELT COVERS
(See page EM-15)
6. REMOVE IGNITION COILS (See page IG-6)
7. REMOVE RH CYLINDER HEAD COVER
Remove the 9 bolts, the 9 seal washers and the cylinder head
cover.
8. REMOVE LH CYLINDER HEAD COVER
(a) Remove the oil dipstick for the transmission.
(b) Disconnect the PCV hose.
(c) Disconnect the engine wire clamp from the wire bracket
on the cylinder head cover.
(d) Remove the 9 bolts, the 9 seal washers and the cylinder
head cover.
9. 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 that of the timing belt rear plates are aligned.
If not, turn the crankshaft 1 revolution (360°) and align the mark
as above.
Page 1903 of 3115

A05717
RH Cylinder Head
LH Cylinder HeadFront
A04457
RH Cylinder Head
LH Cylinder HeadFront
A02213
- ENGINE MECHANICALVALVE CLEARANCE
EM-5
1578 Author: Date:
2004 LAND CRUISER (RM1071U)
10. INSPECT VALVE CLEARANCE
(a) Check only the valves indicated.
Using a feeler gauge, measure the clearance be-
tween the valve lifter and the camshaft.
Record the out-of-specification valve clearance
measurements. They will be used later to determine
the required replacement adjusting shim.
Valve clearance (Cold):
Intake
0.15 - 0.25 mm (0.006 - 0.010 in.)
Exhaust
0.25 - 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 9).
(c) Check only the valves indicated as shown. Measure the
valve clearance. (See procedure in step (a))
11. ADJUST VALVE CLEARANCE
(a) Remove the timing belt (See page EM-15).
(b) Remove the camshafts (See page EM-35).
(c) Remove the valve lifter and adjusting shim.
(d) Determine the replacement adjusting shim size according
to the following Formula and Charts:
Using a micrometer, measure the thickness of the
removed shim.
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
Page 1904 of 3115
EM-6
- ENGINE MECHANICALVALVE CLEARANCE
1579 Author: Date:
2004 LAND CRUISER (RM1071U)
Intake:
N = T + (A - 0.20 mm (0.008 in.))
Exhaust:
N = T + (A - 0.30 mm (0.012 in.))
Select a new shim with the closest thickness as
close as possible 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-57).
(h) Reinstall the timing belt (See page EM-22).
(i) Recheck the valve clearance.
12. REINSTALL CYLINDER HEAD COVERS
13. REINSTALL IGNITION COILS
14. REINSTALL NO.3 TIMING BELT COVERS (See page
EM-22)
15. REINSTALL AIR CLEANER AND INTAKE AIR CON-
NECTOR ASSEMBLY
16. REFILL WITH ENGINE COOLANT
17. START ENGINE AND CHECK FOR LEAKS
18. RECHECK ENGINE COOLANT LEVEL
19. REINSTALL V-BANK COVER
20. REINSTALL BATTERY CLAMP COVER