1991 LEXUS SC400 wheel bolts

2. REMOVE STEERING WHEEL PAD CONNECTORRemove the connector on the steering wheel pad rear sur-
face from the inflater cover.
3. FIX STEERING WHEEL PAD TO DISC WHEEL WITH TIRE
(a) Install the 4 bolts with washer in the 4 bolt holes in the steering wheel pad.
Bolt:
L 35.0 mm (1.398 in.) M 6.0 mm (0.236 in.) Pitch 1.0 mm
(0.039 in.)
NOTICE:
wTighten the bolts by hand until the bolts become difficult
to turn.
w Do not tighten the bolts too much.
(b) Using a service±purpose wire harness for vehicle tie down
the steering wheel pad to the disc wheel.
Wire harness: Stripped wire harness section
1.25 mm
2 or more (0.0019 in2 or more)
HINT: To calculate the square of the stripped wire harness
section ±±
Square = 3.14 x (Diameter)2 divided by 4
CAUTION: If a wire harness which is too thin or some oth-
er thing is used to tie down the steering wheel pad it may
be snapped by the chock when the airbag is deployed,
this is highly dangerous. Always use a wire harness for
vehicle use which is at least 1.25 mm
2 (0.0019 in2.).
(1) Using 3 wire harnesses, wrap the wire harnesses at least 2 times each around the bolts installed on the left and
right sides of the steering wheel pad.
CAUTION:
w Tightly wind the wire harness around the bolts so that
there is no slack.
w If there is slackness in the wire harness, the steering
wheel pad may come loose due to the shock when the
airbag is deployed, this is highly dangerous.
RS±24±
SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL PAD AND SPIRAL CABLE
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REAR SHOCK ABSORBER REMOVAL
SA0SC±02
1. JACK UP VEHICLE AND REMOVE REAR WHEEL
2. REMOVE REAR BRAKE CALIPER
(a) Remove the 2 bolts and remove the brake caliper from therear axle carrier.
(b) Hang up the brake caliper using wire, etc.
3. REMOVE SHOCK ABSORBER WITH COIL SPRING
(a) Remove the nut and bolt on lower side of the shock absorber.
(b) Remove the absorber cap.
(c) Loosen the nut in the middle of the suspension support.
NOTICE: Only loosen the nut, do not remove it.
(d) Remove the 3 nuts and shock absorber with the coil spring.
SA±108
±
SUSPENSION AND AXLE REAR SUSPENSION
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3. INSTALL SHOCK ABSORBER TO REAR AXLE CARRIER
(a) Install the bolt from the rear vehicle.
(b) Temporarily install the nut.
4. INSTALL REAR BRAKE CALIPERInstall the brake caliper to the rear axle carrier with the 2 bolts.
Torque: 104 N Vm (1,065 kgf Vcm, 77 ft Vlbf)
5. STABILIZE SUSPENSION
(a) Install the rear wheel and lower vehicle
(b) Bounce the vehicle up and down several times to stabilize the
suspension.
(c) Jack up the vehicle and remove the rear wheel.
6. TIGHTEN BOLT AND NUT
(a) Support the lower arm with a jack.
(b) Tighten the bolt and nut.
Torque: 143 N Vm (1,460 kgf Vcm, 106 ft Vlbf)
7. INSTALL REAR WHEEL AND LOWER VEHICLE
Torqre: 137 N Vm (1,050 kgf Vcm, 101 ft Vlbf)
8. CHECK REAR WHEEL ALIGNMENT
(See page SA±10)
SA±112
±
SUSPENSION AND AXLE REAR SUSPENSION
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REAR UPPER ARM REMOVAL
SA1A6±01
1. JACK UP VEHICLE AND REAR WHEEL
2. REMOVE REAR DRIVE SHAFT(See page SA±66)
3. REMOVE REAR BRAKE CALIPER
(a) Remove the 2 bolts and brake caliper from the rear axle hub.
(b) Hang up the brake caliper using wire, etc.
4. REMOVE ABS WIRE HARNESS CLAMP Remove the 2 bolts and ABS wire harness clamp.
5. REMOVE UPPER ARM
(a) Remove the nut.
(b) Using SST, disconnect the upper arm to the axle carrier. SST 09628±62011
NOTICE: Be careful not to damage the dust cover.
SA±114±
SUSPENSION AND AXLE REAR SUSPENSION
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(b) Connect the upper arm to the axle carrier with a new nut.
Torque: 109 NVm (1,100 kgf Vcm, 80 ft Vlbf)
2. INSTALL REAR DRIVE SHAFT
(See page SA±66)
3. INSTALL ABS WIRE HARNESS CLAMP Connect the ABS wire harness clamp to the upper arm with
the two bolts.
4. INSTALL BRAKE CALIPER Install the brake caliper to the rear axle carrer with the 2 bolts.
Torque: 104 N Vm (1,065 kgf Vcm, 77 ft Vlbf)
5. INSTALL REAR WHEEL AND LOWER VEHICLE
SA±116
±
SUSPENSION AND AXLE REAR SUSPENSION
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LOWER SUSPENSION ARMS AND
STRUT ROD REMOVAL
SA1A8±01
1. JACK UP VEHICLE AND REMOVE REAR WHEEL
2. REMOVE BRAKE CALIPER AND DISC
(a) Remove the 2 bolts and brake caliper from the axle hub.
(b) Hang up the brake caliper using wire, etc.
3. REMOVE STRUT ROD
(a) Remove the bolt and nut, disconnect the strut rod from therear axle carrier.
(b) Remove the bolt and nut and the strut rod.
4. REMOVE NO.1 LOWER SUSPENSION ARM
(a) Remove the nut.
(b) Using SST, disconnect the lower suspension arm from the axle carrier.
SST 09628±10011
NOTICE: Be careful not to damage the dust boot.
SA±118±
SUSPENSION AND AXLE REAR SUSPENSION
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(b) Temporarily connect the strut rod to the axle carrier with thebolt and nut.
4. INSTALL BRAKE CALIPER Install the brake caliper with the 2 bolts.
Torque: 104 N Vm (1,065 kgf Vcm, 77 ft Vlbf)
5. STABILIZE SUSPENSION
(a) Install the rear wheel and lower vehicle.
(b) Bounce the vehicle up and down several times to stabilize the
suspension.
(c) Jack up the vehicle and remove rear wheel.
6. TORQUE BOLTS AND NUTS
(a) Support the rear axle carrier with a jack.
(b) Torque the bolts and nuts of the strut rod.
Torque: 184 N Vm (1,880 kgf Vcm, 136 ft Vlbf)
(c) Torque the nut.
Torque: 143 N Vm (1,460 kgf Vcm, 106 ft Vlbf)
SA±122±
SUSPENSION AND AXLE REAR SUSPENSION
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STEERING KNUCKLE WITH AXLE HUB
REMOVAL
SA01Y±08
1. JACK UP VEHICLE AND REMOVE FRONT WHEEL
2. REMOVE FRONT BRAKE CALIPER AND BRAKE DISC
(a) Remove the 2 bolts and remove the brake caliper from thesteering knuckle.
(b) Hang up the brake caliper using wire, etc.
(c) Place matchmarks on the brake disc and axle hub.
(d) Remove the 2 screws and remove the brake disc.
3. REMOVE ABS SPEED SENSOR FROM STEERING KNUCKLE
Remove the bolt and disconnect the sensor from the steering
knuckle.
4. CHECK BACKLASH IN BEARING SHAFT DIRECTION Place the dial indicator near the center of the axle hub and
check the backlash in the bearing shaft direction.
Maximum:
0.05 mm (0.0020 in.)
If greater than the specified maximum, replace the bearing.
±
SUSPENSION AND AXLE FRONT AXLE HUBSA±17
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