ect LEXUS SC300 1991 Service Repair Manual

(d) Install the coil spring to the shock absorber.HINT: Fit the lower end of the coil spring into the gap of the
spring seat of the shock absorber.
(e) Install the suspension support to the rod and temporarily tighten a new nut.
(f) Rotate the suspension support so that the rod and one of the bolts on suspension support are aligned with the lower
bushing.
(g) Remove the SST. HINT: After removing the SST, again check the direction of
the suspension support.
2. INSTALL SHOCK ABSORBER WITH COIL SPRING TO VEHICLE
(a) Install the shock absorber with the coil spring to the vehicle
with the 3 nuts.
Torque: 25 N Vm (260 kgf Vcm, 19 ft Vlbf)
(b) Torque the temporarily tightened nut in the middle of the
suspension support.
Torque: 27 N Vm (280 kgf Vcm, 20 ft Vlbf)
±
SUSPENSION AND AXLE REAR SUSPENSIONSA±111
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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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(c) Remove the bolts and nuts and the upper arm.
UPPER SUSPENSION ARM BALL JOINT
INSPECTION
SA0SJ±04
INSPECT BALL JOINT FOR ROTATION CONDITION
(a) Flip the ball joint stud back and forth 5 ti mes, as shown in the
illustration, before installing the nut.
(b) Using torque wrench, turn the nut continuously one turn every 2±4 seconds and take the torque reading on the 5th
turn.
Torque (turning):
1.0 ± 3.4 N Vm (10 ± 35 kgf Vcm, 9 ± 30 in. Vlbf)
If not with in specification, replace the upper suspension arm.
UPPER ARM INSTALLATION
SA1A7±01
HINT: If replace the nut, assemble the nut and E±ring to the
washer with lock protrusion before install.
1. INSTALL UPPER ARM
(a) Install the upper arm to the body with the bolts and nuts. HINT: Install the tip of the nut lock facing down.
Torque: 164 N Vm (1,670 kgf Vcm, 121 ft Vlbf)
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SUSPENSION AND AXLE REAR SUSPENSIONSA±115
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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
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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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(c) Place matchmarks on the adjusting cam and body.
(d) Remove the adjusting cam and nut.
(e) Remove the lower suspension arm.
5. REMOVE NO.2 LOWER SUSPENSION ARM
(a) Remove the bolt and nut, disconnect the shock absorber.
(b) Remove the nut and disconnect the stabilizer bar link.
(c) Remove the nut.
(d) Using SST, disconnect the lower suspension arm from theaxle carrier.
SST 09610±20012
NOTICE: Be careful not to damage the dust cover.
(e) Place matchmarks on the adjusting cam and body.
(f) Remove adjusting cam and nut and the lower suspensionarm.
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SUSPENSION AND AXLE REAR SUSPENSIONSA±119
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STRUT ROD BUSHING REPLACEMENT
SA0WC±01
REPLACE STRUT ROD BUSHING
Using SST, replace the strut rod bushing.
SST 09710±30020 (09710±03110, 09710±03120)
LOWER SUSPENSION ARM NO.1 AND
NO. 2 BALL JOINT INSPECTION
SA0UP±02
INSPECT BALL JOINT FOR ROTATION CONDITION
(a) Flip the ball joint stud back and forth 5 times, before installing the nut.
(b) Using a torque wrench, turn the nut continuously one turn every 2±4 seconds and take the torque reading on the 5th
turn.
Torque:
Lower suspension arm No.1
1.0 ± 3.4 N Vm (10 ± 35 kgf Vcm, 9 ± 30 in. Vlbf)
Lower suspension arm No.2 1.0 ± 3.4 N Vm (10 ± 35 kgf Vcm, 9 ± 30 in. Vlbf)
If not within specification, replace the lower suspension arm
No.1 or/and No.2.
LOWER SUSPENSION ARMS AND
STRUT ROD INSTALLATION
SA1A9±01
1. INSTALL NO.2 LOWER SUSPENSION ARM
(a) Install the l ower suspension arm to the carrier with a new nut.
Torque: 150 NVm (1,525 kgf Vcm, 110 ft Vlbf)
(b) Connect the lower suspension arm to the body.
(c) Temporarily install the adjusting cam and nut.
(d) Align matchmarks on the adjusting cam and body.
SA±120
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SUSPENSION AND AXLE REAR SUSPENSION
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(e) Temporarily connect the shock absorber to the lower arm with
the bolt and nut.
(f) Connect the stabilizer bar link to the lower suspension arm with the nut.
Torque: 74 N Vm (750 kgf Vcm, 54 ft Vlbf)
2. INSTALL NO.1 LOWER SUSPENSION ARM
(a) Install the lower suspension arm to the axle carrier with a new
nut.
Torque: 59 N Vm (600 kgf Vcm, 43 ft Vlbf)
(b) Connect the lower suspension arm to the body.
(c) Temporarily install the adjusting cam and nut.
(d) Align the matchmarks on the adjusting cam and body.
3. INSTALL STRUT ROD
(a) Temporarily install the strut rod to the body with the bolt and
nut.
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SUSPENSION AND AXLE REAR SUSPENSIONSA±121
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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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STABILIZER BAR REMOVAL
SA0WD±01
1. DISCONNECT EXHAUST PIPE
2. REMOVE BOTH SIDE STABILIZER BAR LINKSRemove the nuts and the stabilizer bar links.
3. REMOVE STABILIZER BAR Remove both side the bolts and remove the stabilizer bar with
the brackets, cushions and links.
4. REMOVE BOTH SIDE CUSHIONS AND BRACKETS
STABILIZER BAR LINK BALL JOINT
INSPECTION
SA0UT±03
INSPECT BALL JOINT FOR ROTATION CONDITION
(a) Flip the ball joint stud back and forth 5 ti mes, as shown in the
illustration, before installing the nut.
(b) Using a torque wrench, turn the nut continuously one turn every 2±4 seconds and take the torque reading on the 5th
turn.
Torque (turning):
0.05 ± 1.0 N Vm (0.5 ± 10 kgf Vcm, 2.6 ± 8.7 in Vlbf)
If not within specification, replace the stabilizer bar link.
±
SUSPENSION AND AXLE REAR SUSPENSIONSA±125
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