Page 706 of 1399
H00003
ON
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
DI−273
1996 LAND CRUISER (RM451U)
3 Does SRS warning light turn off?
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Connect steering wheel pad connector.
(c) Connect front passenger airbag assembly connector.
(d) Connect airbag sensor assembly connector.
(e) Turn ignition switch ON.
CHECK:
Operate electric system (defogger, wiper, headlight, heater
blower, etc.) and check that SRS warning light goes off.
NO Check DTC, if a DTC is output, perform trouble-
shooting according to DTC, if a normal code is
output, replace airbag sensor assembly.
YES
From the results of the above inspection, the malfunctioning part can now be \
considered normal.
To make sure of this, use the simulation method to check.
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H00094
Airbag Sensor
Assembly
Spiral
Cable
P squib
D squib LOCK
AB0117
N12639
H00026
Airbag Sensor Assembly
LOCK
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
DI−275
1996 LAND CRUISER (RM451U)
INSPECTION PROCEDURE
1 Preparation.
PREPARATION:
(a) Disconnect negative ( −) terminal cable from the battery,
and wait at least 90 seconds.
(b) Remove steering wheel pad. (See SR section)
(c) Disconnect connector of front passenger airbag assem- bly. (See page RS−22 )
CAUTION:
Store the steering wheel pad with the front surface facing
upward.
2 Does SRS warning light turn off?
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative ( −) terminal cable from the battery,
and wait at least 90 seconds.
(c) Disconnect airbag sensor assembly connector.
(d) Connect negative (−) terminal cable to battery.
CHECK:
Check operation of SRS warning light.
NO Check SRS warning light circuit or terminal AB circuit of DLC1.
YES
Replace airbag sensor assembly.
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P22567A16077
2 Dot Marks
EM−34
−
ENGINE MECHANICAL CYLINDER HEAD
1996 LAND CRUISER (RM451U)
(6) Loosen and remove the No. 2, No. 3, No. 5 and No.
7 bearing cap bolts, alternately loosening the left
and right bolts uniformly in several passes, in the
sequence shown.
NOTICE:
Do not remove the No. 4 and No. 6 bearing cap bolts at this
stage. (7) Remove the 4 bearing caps.
(8) Alternately and uniformly loosen and remove theNo. 4 and No. 6 bearing cap bolts.
HINT:
As the 4 No. 4 and No. 6 bearing cap bolts are loosened,
make sure that the camshaft is lifted out straight and level.
If the camshaft is not being lifted out straight and level, re-
tighten the 4 No. 4 and No. 6 bearing cap bolts. Then re-
verse the order of above steps from (g) to (e) and repeat
steps from (c) to (h) once again.
NOTICE:
Do not pry on or attempt to force the camshaft with a tool
or other object.
(9) Remove the 2 bearing caps and exhaust camshaft.
(b) Remove the intake camshaft. (1) Set the timing mark (2 dot marks) of the camshaftdrive gear at approx. 25 ° angle by turning the hexa-
gon wrench head portion of the intake camshaft
with a wrench.
HINT:
The above angle arrows the No. 1 and No. 4 cylinder cam lobes
of the intake camshaft to push their valve lifters evenly.
(2) Lightly push the intake camshaft towards the frontwithout applying excessive force.
(3) Loosen and remove the No. 1 bearing cap bolts, al-
ternately loosening the left and right bolts uniformly.
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EM1E7−01
EM−54
−
ENGINE MECHANICAL CYLINDER HEAD
1996 LAND CRUISER (RM451U)
INSTALLATION
1. INSTALL CYLINDER HEAD AND INTAKE MANIFOLD ASSEMBLY
(a) Place the cylinder head on the cylinder head. (1) Apply seal packing to the 2 locations as shown.
Seal packing: Part No. 08826−00080 or equivalent
NOTICE:
Do not apply too much seal packing
(2) Place a new cylinder head gasket in position on the
cylinder block.
NOTICE:
Be careful of the installation direction. (3) Place the cylinder head in position on the cylinderhead gasket.
(b) Install the cylinder head bolts.
HINT:
The cylinder head bolts are tightened in 3 progressive
steps (steps (b), (d) and (e)).
If any cylinder head bolt is broken or deformed, replace
it.
(1) Apply a light coat of engine oil on the threads and under the heads of the cylinder head bolts.
(2) Install and uniformly tighten the 14 cylinder head
bolts and plate washers in several passes, in the se-
quence shown.
Torque: 39 N·m (400 kgf·cm, 29 ft·lbf)
If any of the cylinder head bolts does not meet the torque speci-
fication, replace the cylinder head bolt.
(3) Mark the front of the cylinder head bolt head withpaint.
(4) Retighten the cylinder head bolts by 90 ° in the nu-
merical order shown.
(5) Retighten the cylinder head bolts by an additional 90°.
(6) Check that the painted mark is now facing rearward.
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P22567A16077
2 Dot Marks
EM−56
−
ENGINE MECHANICAL CYLINDER HEAD
1996 LAND CRUISER (RM451U)
(a) Install the intake camshaft.
(1) Apply engine oil to the thrust portion of the intakecamshaft.
(2) Lightly place the intake camshaft on top of the cylin-
der head as shown in the illustration so that the No.
1 and No. 4 cylinder cam lobes face downward.
(3) Lightly push the camshaft towards the front without
applying excessive force.
(4) Place the No. 2 and No. 5 bearing caps in their prop-
er location.
(5) Temporarily tighten these bearing cap bolts uni- formly and alternately in several passes until the
bearing caps are snug with the cylinder head.
(6) Place the No. 3, No. 4, No. 6 and No. 7 bearing caps
in their proper location.
(7) Temporarily tighten these bearing cap bolts, alter- nately tightening the left and right bolts uniformly.
(8) Place the No. 1 bearing cap in its proper location. When doing this, check that there is no gap be-
tween the cylinder head and the contact surface of
bearing cap.
(9) Temporarily tighten the bearing cap bolts, alternate-
ly tightening the left and right bolts uniformly.
(10) Uniformly tighten the 14 bearing cap bolts in several
passes.
Torque: 16 N·m (160 kgf·cm, 12 ft·lbf)
(b) Install the exhaust camshaft. (1) Set the timing mark (2 dot marks) of the camshaftdrive gear at approx. 35 ° angle by turning the hexa-
gon wrench head portion of the intake camshaft
with a wrench.
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ENGINE MECHANICAL CYLINDER HEAD
EM−57
1996 LAND CRUISER (RM451U)
(2) Apply engine oil to thrust portion of the exhaust
camshaft.
(3) Engage the exhaust camshaft gear to the intake
camshaft gear by matching the timing marks (two
dot marks) on each gear.
(4) Roll down the exhaust camshaft onto the bearing journals while engaging gears with each other.
(5) Lightly push the intake camshaft towards the front without applying excessive force.
(6) Install the No. 4 and No. 6 bearing caps in their proper location.
(7) Temporarily tighten the bearing cap bolts uniformly and alternately in several passes until the bearing
caps are snug with the cylinder head.
(8) Place the No. 2, No. 3, No. 5 and No. 7 bearing caps
in their proper location.
(9) Temporarily tighten these bearing cap bolts, alter- nately tightening the left and right bolts uniformly.
(10) Place the No. 1 bearing cap in its proper location. When doing this, check that there is no gap be-
tween the cylinder head and the contact surface of
bearing cap.
(11) Temporarily tighten the bearing cap bolts, alternate-
ly tightening the left and right bolts uniformly.
(12) Uniformly tighten the 14 bearing cap bolts in several
passes.
Torque: 16 N·m (160 kgf·cm, 12 ft·lbf)
(13) Bring the service bolt installed in the driven sub −
gear upward by turning the hexagon wrench head
portion of the camshaft with a wrench.
(14) Remove the service bolt.
(15) Check that the intake and exhaust camshafts turn smoothly.
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EM−72
−
ENGINE MECHANICAL ENGINE UNIT
1996 LAND CRUISER (RM451U)
24. REMOVE FRONT AND REAR PROPELLER SHAFTS
(a) Put matchmarks on the flanges.
(b) Remove the 4 bolts and nuts.
(c) Remove the 4 nuts.
(d) Remove the propeller shaft.
25. REMOVE TRANSFER SHIFT LEVER
(a) Remove the nut and transmission control rod.
(b) Remove the transfer shift lever knob.
(c) Remove 4 screws.
(d) Lift up the console slightly in order to disconnect the con-
nector.
(e) Remove the console.
(f) Remove the 3 bolts and console box.
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ENGINE MECHANICAL ENGINE UNIT
EM−77
1996 LAND CRUISER (RM451U)
9. INSTALL OIL DIPSTICK GUIDE FOR TRANSMISSION
(a) Install a new O−ring to the dipstick guide.
(b) Apply a light coat of ATF to the O −ring.
(c) Connect the dipstick guide end to the tube of the oil pan, and install the dipstick guide with the 2 bolts.
(d) Install the dipstick.
(e) Connect the 2 breather hoses.
10. INSTALL ENGINE AND TRANSMISSION ASSEMBLY IN VEHICLE
(a) Attach the engine hoist chain to the engine hangers.
(b) Lower the engine and transmission assembly into the en-
gine compartment.
(c) Insert the stud bolts of the front engine mounting insula- tors into the stud bolt holes of the frame.
(d) Temporarily install the 2 nuts holding the engine front mounting insulators to the frame crossmember.
(e) Keep the engine level with a jack.
(f) Remove the hoist chain.
11. INSTALL FRAME CROSSMEMBER
(a) Temporarily install the crossmember to the engine rear mounting insulator with the 2 nuts.
(b) Install the 8 bolts holding the crossmember to the frame. Torque: 61 N·m (620 kgf·cm, 45 ft·lbf)
(c) Tighten the 2 nuts holding the crossmember to the engine
rear mounting insulator.
Torque: 74 N·m (750 kgf·cm, 54 ft·lbf)
12. TIGHTEN NUTS HOLDING ENGINE FRONT MOUNT- ING INSULATORS TO FRAME
Torque: 74 N·m (750 kgf·cm, 54 ft·lbf)
13. CONNECT GROUND STRAP TO HEAT INSULATOR
14. INSTALL FRONT EXHAUST PIPE
(a) Install 2 new gaskets and the front exhaust pipe with the
4 nuts.
Torque: 63 N·m (630 kgf·cm, 46 ft·lbf)
(b) Install the No.1 support bracket with the 2 bolts.
Torque: 24 N·m (240 kgf·cm, 17 ft·lbf)
(c) Connect the clamp and tighten the clamp bolt. Torque: 19.5 N·m (195 kgf·cm, 14 ft·lbf)
(d) Connect the front exhaust pipe to the rear TWC with a
new gasket, 2 bolts and 2 nuts.
Torque: 46 N·m (470 kgf·cm, 34 ft·lbf)
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