LEXUS SC400 1991 Service Repair Manual

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±
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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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(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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(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)
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(d) Torque the nut on the body side of the No.1 lower suspension
arm.
Torque: 184 N Vm (1,880 kgf Vcm, 136 ft Vlbf)
HINT: Align the matchmarks on the adjusting cam and body.
(e) Torque the nut on the body side of the No.2 lower suspension
arm.
Torque: 184 N Vm (1,880 kgf Vcm, 136 ft Vlbf)
HINT: Align the matchmarks on the adjusting cam and body.
7. INSTALL REAR WHEEL AND LOWER VEHICLE
Torque: 103 N Vm (1,050 kgf Vcm, 76 ft Vlbf)
8. CHECK REAR WHEEL ALIGNMENT
(See page SA±10)
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SUSPENSION AND AXLE REAR SUSPENSIONSA±123
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STABILIZER BAR
COMPONENTS
SA0AJ±04
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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.
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SUSPENSION AND AXLE REAR SUSPENSIONSA±125
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STABILIZER BAR INSTALLATION
SA0WE±02
1. INSTALL BOTH SIDE CUSHIONS AND BRACKET
(a) Install the cushion so as to touch the line painted on thestabilizer bar.
HINT: Install the cushion to the outside of the line.
(b) Install the brackets.
2. INSTALL STABILIZER BAR Install the stabilizer bar with the brackets, cushions and bolts.
Torque: 28 N Vm (290 kgf Vcm, 21 ft Vlbf)
3. INSTALL BOTH SIDE STABILIZER BAR LINKS
Install the stabilizer bar links to the stabilizer bar and the No.2
lower suspension arm with the nuts.
Torque: 74 N Vm (750 kgf Vcm, 54 ft Vlbf)
4. CONNECT EXHAUST PIPE
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SA1AA±01
SERVICE SPECIFICATIONS
SERVICE DATA
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SUSPENSION AND AXLE SERVICE SPECIFICATIONSSA±127
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