Page 2642 of 4323
A23376
± ENGINE MECHANICALCYLINDER HEAD
EM±55
2634 Author: Date:
2005 SEQUOIA (RM1146U)
24. INSPECT EXHAUST MANIFOLDS
Using a precision straight edge and feeler gauge, measure the
warapage of the surface that is in contact with the cylinder
head.
Maximum warpage: 0.10 mm (0.0394 in.)
If warpage is greater than maximum, replace the manifold.
Page 2644 of 4323
A05709
SST
A03199A03200
Sharp 5.5 mm Reamer
A04107
Pry
ClawBend
A04108
SST
SST Return
ClawDownward
± ENGINE MECHANICALCYLINDER HEAD
EM±57
2636 Author: Date:
2005 SEQUOIA (RM1146U)
(f) Using SST and a hammer, tap in a new guide bushing to
the specified protrusion height.
Protrusion height:
Intake9.2 to 9.8 mm (0.362 to 0.386 in.)
Exhaust8.2 to 8.8 mm (0.323 to 0.346 in.)
SST 09201±01055, 09950±70010 (09951±07100)
(g) Using a sharp 5.5 mm reamer, ream the guide bushing
to obtain the standard specified clearance (see page
EM±46) between the guide bushing and valve stem.
2. REPLACE SPARK PLUG TUBE GASKETS
(a) Bend the 4 ventilation case claws installed on the cylinder
head cover to an angle of 90° or more.
(b) Using a screwdriver, pry out the gasket.
NOTICE:
Be careful not to damage the cylinder head cover. Tape the
screwdriver tip.
(c) Using SST and a hammer, tap in a new gasket until its sur-
face is flush with the upper edge of the cylinder head cov-
er.
SST 09950±60010 (09951±00240, 09951±00440,
09952±06010), 09950±70010 (09951±07100)
NOTICE:
Be careful of the installation direction.
(d) Apply a light coat of MP grease to the gasket lip.
(e) Return the 4 ventilation case claws to its original position.
Page 2656 of 4323
A23340
A
B
C
E
EA
B C
EE
E
EE
EE D
E EEE
ED
A23340
1
4
22
82
3 21
6
57
13 141912
11
15
1620
9
1017
18
A23338
Service Bolt
EM7143
Seal Packing
± ENGINE MECHANICALCYLINDER HEAD
EM±69
2648 Author: Date:
2005 SEQUOIA (RM1146U)
(11) Install 4 new seal washers to the bearing cap bolts
(A and B).
(12) Apply a light coat of engine oil on the threads and
under the heads of the bearing cap bolts (D and E).
NOTICE:
Do not apply engine oil under the heads of the bearing cap
bolts (A), (B) and (C).
HINT:
Each bolt length is indicated in the illustration.
Bolt length:
94 mm (3.70 in.) for A with seal washer
72 mm (2.83 in.) for B with seal washer
25 mm (0.98 in.) for C
52 mm (2.05 in.) for D
38 mm (1.50 in.) for E
(13) Install the oil feed pipe and the 22 bearing cap bolts
as shown in the illustration.
(14) Uniformly tighten the 22 bearing cap bolts in several
steps, in the sequence shown.
Torque:
7.5 N´m (76 kgf´cm, 66 in.´lbf) for bolt C
16 N´m (160 kgf´cm, 12 ft´lbf) for others
(15) Remove the service bolt.
9. CHECK AND ADJUST VALVE CLEARANCE
(See page EM±4)
Turn the camshaft so that the cam lobe faces upward, and
check and adjust the valve clearance.
10. INSTALL CAMSHAFT TIMING OIL CONTROL VALVE
(See page SF±48)
11. INSTALL SEMI±CIRCULAR PLUGS
(a) Remove any old packing material (FIPG).
(b) Apply seal packing to the semi±circular plug grooves.
Seal packing:
Part No. 08826±00080 or equivalent
Page 2658 of 4323
A04015
Wire
Clamp
Bracket
A23333
Rear Water Bypass Joint
A23332
Front Water Bypass Joint
A23331
± ENGINE MECHANICALCYLINDER HEAD
EM±71
2650 Author: Date:
2005 SEQUOIA (RM1146U)
(c) Install the gasket to the cylinder head cover.
(d) Install the seal washer to the bolt.
(e) Install the cylinder head cover with the 9 bolts. Uniformly
tighten the bolts in several steps. Install the 2 cylinder
head covers.
Torque: 6.0 N´m (60 kgf´cm, 53 in.´lbf)
(f) Install the wire clamp bracket on the engine wire to the
camshaft bearing cap.
14. INSTALL ENGINE HANGERS
Torque: 37 N´m (380 kgf´cm, 27 ft´lbf)
15. INSTALL VVT SENSORS (See page SF±77)
16. INSTALL OIL DIPSTICK AND GUIDE FOR ENGINE
17. INSTALL OIL DIPSTICK AND GUIDE FOR A/T
18. INSTALL IGNITION COILS (See page IG±6)
19. INSTALL REAR WATER BYPASS JOINT
(a) Install 2 new gaskets to the cylinder head.
(b) Install the the water bypass joint with the 4 nuts to the cyl-
inder heads. Alternately tighten the nuts.
Torque: 18 N´m (185 kgf´cm, 13 ft´lbf)
20. INSTALL NO.2 AIR SWITCHING VALVES
(See page EC±26)
21. INSTALL AIR PUMP ASSEMBLY (See page EC±26)
22. INSTALL FRONT WATER BYPASS JOINT
Install 2 new gaskets and the water bypass joint with the 4 nuts.
Alternately tighten the nuts.
Torque: 18 N´m (185 kgf´cm, 13 ft´lbf)
23. INSTALL WATER INLET AND INLET HOUSING AS-
SEMBLY (See page CO±8)
24. ASSEMBLE INTAKE MANIFOLDS
(a) Install the 2 delivery pipes and 8 injectors (see page
SF±31).
(b) Install 2 new gaskets and fuel pulsation damper.
(c) Install a new O±ing and fuel pressure regulator with the
2 bolts.
(d) Install the fuel return pipe to the intake manifold with the
3 bolts.
(e) Connect the fuel return hose to the fuel pressure regula-
tor.
Page 2659 of 4323
B17510
A23330
(j)(j)
(i)(h)
(h) (h)
A23365
A23329
EM±72
± ENGINE MECHANICALCYLINDER HEAD
2651 Author: Date:
2005 SEQUOIA (RM1146U)
(f) Install the VSV for ACIS with the bolt.
Torque: 7.5 N´m (76 kgf´cm, 66 in.´lbf)
(g) Install the throttle body (See page SF±43).
(h) Install 4 new gaskets and front fuel pipe with the bolt and
2 unions to the intake manifold.
Torque:
39 N´m (400 kgf´cm, 29 ft´lbf) for union bolts
7.5 N´m (80 kgf´cm, 66 in.´lbf) for bolt
(i) Install the VSV for EVAP with the bolt to the intake man-
ifold and connect the EVAP hose.
Torque: 7.5 N´m (76 kgf´cm, 66 in.´lbf)
(j) Install the 2 VSVs for air injection system with the 2 bolts.
Torque: 7.5 N´m (76 kgf´cm, 66 in.´lbf)
25. INSTALL INTAKE MANIFOLD ASSEMBLY
(a) Place 2 new gaskets on the intake manifold.
(b) Place the intake manifold assembly on the cylinder
heads.
(c) Install and uniformly tighten the 6 bolts and 4 nuts in sev-
eral steps.
Torque: 18 N´m (185 kgf´cm, 13 ft´lbf)
Page 2661 of 4323
A23324
(a)
(b)
(c)
(d)
EM±74
± ENGINE MECHANICALCYLINDER HEAD
2653 Author: Date:
2005 SEQUOIA (RM1146U)
26. CONNECT HOSES TO INTAKE MANIFOLD
(a) Connect the vacuum hose to the fuel pressure regulator.
(b) Connect the PCV hose to the PCV valve on the LH the cyl-
inder head.
(c) Connect the EVAP hose (from charcoal canister) to the
VSV for EVAP.
(d) Connect the 2 vacuum hoses to the VSV for the air injec-
tion system.
(e) Connect the brake booster tube.
27. CONNECT CONNECTORS TO INTAKE MANIFOLD
(a) Connect the throttle control connector.
(b) Connect the 2 VSV connectors for the air injection sys-
tem.
(c) Connect the VSV connector for the EVAP.
(d) Connect the 8 injector connectors.
(e) Connect the ECT sensor connector.
(f) Connect the 2 air fuel ratio sensor connectors.
28. CONNECT FUEL INLET HOSE (See page SF±31) AND
FUEL RETURN HOSE
29. INSTALL TIMING BELT REAR PLATES
(a) Install the RH No.1 timing belt rear plates.
Install the RH No.1 timing belt rear plates to the cylinder
head with the 3 bolts and stud bolt.
Torque: 7.5 N´m (76 kgf´cm, 66 in.´lbf)
(b) Install the LH No.1 timing belt rear plates.
(1) Connect the wire clamp to the No.1 timing belt rear
plate.
(2) Install the LH No.1 timing belt rear plates to the cyl-
inder head with the 3 bolts and stud bolt.
Torque: 7.5 N´m (76 kgf´cm, 66 in.´lbf)
30. INSTALL THROTTLE BODY COVER
31. INSTALL IGNITION COILS (See page IG±6)
32. INSTALL OIL DIPSTICK AND GUIDE FOR A/T
33. INSTALL FRONT EXHAUST PIPE (See page EM±126)
34. INSTALL PS PUMP (See page EM±83)
35. INSTALL CAMSHAFT POSITION SENSOR
(See page IG±9)
36. INSTALL CAMSHAFT TIMING PULLEYS
(See page EM±23)
37. CONNECT TIMING BELT TO CAMSHAFT TIMING PUL-
LEYS (See page EM±23)
38. CHECK ENGINE OIL LEVEL
Page 2665 of 4323
A17676
Oil Cooler Pipe for Transmission
Oil Dipstick and Guide
for Transmission
Engine Unit Assembly
Front Spacer
Flywheel Housing Under CoverRear Spacer
Drive Plate O±Ring
48 (490, 35)
x 8
x 6
N´m (kgf´cm, ft´lbf) : Specified torque
Non±reusable part
Precoated part
Clamp
Stay
StayStay
See page EM±83
1st 49 (500, 36)
2nd Turn 90°
Transmission
(with Torque
Converter Clutch)
x 10
37 (380, 27) for 14 mm Head
72 (730, 53) for 17 mm Head
Connector
Connector
Connector
18 (183, 13)
EM±78
± ENGINE MECHANICALENGINE UNIT (2WD)
2657 Author: Date:
2005 SEQUOIA (RM1146U)
Page 2666 of 4323
EM120±07
B07536
Disconnect
± ENGINE MECHANICALENGINE UNIT (2WD)
EM±79
2658 Author: Date:
2005 SEQUOIA (RM1146U)
REMOVAL
1. REMOVE ENGINE HOOD
2. REMOVE ENGINE UNDER COVER
3. DISCONNECT BATTERY CABLES
(a) Disconnect the clamp on battery negative (±) cable from
the No.2 relay box.
(b) Disconnect the battery positive (+) terminal cable.
(c) Disconnect battery negative (±) cable from the left fender
apron.
4. DRAIN ENGINE COOLANT
5. REMOVE RADIATOR ASSEMBLY (See page CO±17)
6. REMOVE THROTTLE BODY COVER
7. REMOVE AIR CLEANER AND INTAKE AIR CONNEC-
TOR ASSEMBLY
(a) Disconnect the MAF meter connector.
(b) Loosen the 3 bolts, and remove the air cleaner case.
(c) Remove the suction hose from the intake air connector.
(d) Disconnect the PS air hose, air inlet hose for EVAP, PCV
hose and MAF meter wire from the air intake connector.
(e) Disconnect the intake air connector from the throttle body.
8. 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.
9. DISCONNECT ENGINE WIRE FROM CABIN
(a) Remove the glove compartment door.
(b) Remove the lower No.2 panel.
(c) Remove the 3 screws, and disconnect the ECM from the
body bracket.
(d) Disconnect the 3 wire harness connectors from the ECM.
(e) Disconnect the 2 wire harness connectors (cassette con-
nector).
(f) Disconnect the engine wire from the engine wire bracket
and remove the bolt, 2 nuts and bracket.
(g) Pull out the engine wire from the cowl panel.
10. DISCONNECT HOSES, WIRES, CONNECTORS,
CLAMPS, GROMMET AND CABLES
(a) Disconnect the 2 PS air hoses from hose clamp on the
No.3 RH timing belt cover.
(b) Disconnect the generator wire.
(c) Disconnect the generator connector.
