1991 LEXUS SC400 length

\
 \

Flow control valve spring length (SC 400) STD\
\
37 mm (1.46 in.)
\
 \
Flow control valve spring length (SC 400) Minimum\
\
36 mm (1.42 in.)
\
 \
Flow control valve spring length (SC 300) STD\
\
35 mm (1.38 in.)
\
 \
Flow control valve spring length (SC 300) Minimum\
\
33 mm (1.30 in.)
\
 \
Pump rotating torque (SC 400)\
\
0.1 NVm (1.0 kgf Vcm, 0.9 in. Vlbf) or less
\
 \
Pump rotating torque (SC 300)\
\
0.2 N Vm (2.5 kgf Vcm, 2.2 in. Vlbf) or less
\
 \
PS GEAR HOUSING\
\
\
 \
Steering rack runout Maximum\
\
0.3 mm (0.012 in.)
\
 \
Total preload\
\
0.9±1.9 N Vm (9±20 kgf Vcm, 7.9±17.3 in. Vlbf)
\
 \
Solenoid valve resistance\
\
6±11

SR±170±
STEERING SERVICE SPECIFICATIONS
WhereEverybodyKnowsYourName

19. REMOVE UPPER COLUMN TUBE
(a) Set SST, the nut (10 mm diameter, 1.25 mm pitch), platewasher (36 mm outer diameter) and bolt (10 mm diameter,
1.25 mm pitch, 50 mm length), as shown.
And then remove the 2 tilt steering bolts.
SST 09910±00015 (09911±00011, 09912±00010)
(Reference)
Nut 90170±10004
Plate washer 90201±10201
Bolt 91111±51050
(b) Remove the upper column tube from the lower column tube.
20. REMOVE TILT MEMORY BOLT Using a hexagon wrench, remove the tilt memory bolt and
square nut.
21. REMOVE MAIN SHAFT ASSEMBLY
(a) Secure the column upper tube in a vise. NOTICE: Do not tighten the vise too tight.
(b) Using SST, compress the compression spring. SST 09950±20017 (09956±00010)
(c) Using snap ring pliers, remove the snap ring.
SR±18
±
STEERING STEERING COLUMN
WhereEverybodyKnowsYourName

(c) Using SST, install the lock nuts.SST 09617±14010, 09923±00010
Torque: 31 N Vm (320 kgf Vcm, 23 ft Vlbf)
HINT: Use a torque wrench with a fulcrum length of 340 mm
(13.39 in.).
STEERING COLUMN ASSEMBLY
SR0EN±03
1. APPLY MOLYBDENUM DISULPHIDE LITHIUM BASE
GREASE
(See page SR±27)
2. INSTALL MAIN SHAFT
(a) Install the bearing, thrust collar and spring to the main shaft.
(b) Install the main shaft into the upper tube.
(c) Using SST to compress the compression spring. SST 09950±20017 (09956±00010)
(d) Using snap ring pliers, install a new snap ring.
3. INSTALL TILT STEERING HOUSING SUPPORT
Torque: 13 N Vm (130 kgf Vcm, 9 ft Vlbf)
4. INSTALL COLUMN UPPER TUBE WITH MAIN SHAFT
(a) Install the upper tube and main shaft into the lower tube.
SR±34
±
STEERING STEERING COLUMN
WhereEverybodyKnowsYourName

PREPARATION
SST (SPECIAL SERVICE TOOLS)
RS00X±04
RECOMMENDED TOOLS
RSOOY±04
EQUIPMENT
RS00Z±04\
 \
Torque wrench 
\
 
\

\
Bolt Length: 35 mm (1.38 in.) Pitch: 1.0 mm (0.039 in.)
Diam.: 6.0 mm (0.236 in.) 

Airbag disposal
\
 \
Tire Width: 185 mm (7.28 in.) Inner diam.: 360mm (14.17 in.) Airbag disposal
\
 
\

\

Tire with disk wheel Width: 185 mm (7028 in.)
Inner diam.: 360 mm (14.17 in.) 


Airbag disposal
\
 \
Vinyl bag Airbag disposal
±
SUPPLEMENTAL RESTRAINT SYSTEM PREPARATIONRS±15
WhereEverybodyKnowsYourName

5. ADJUST CAMBER AND CASTERSpecifications:
 


Camber
Left±right error 


0
01 ' + 30 '
30 ' or less
 


Caster
Left±right error 


2
56 ' + 30 '
30 ' or less
(a) Remove the engine under cover.
(b) Loosen the front and/or rear adjusting cam nuts.
(c) Adjust the camber and caster by front and/or rear adjusting
cams.
(See adjustment chart )
(d) Torque the front and/or rear adjusting cam nuts.
Torque: 226 N Vm (2,300 kgf Vcm, 166 ft Vlbf)
6. ADJUST TOE±IN
(a) Remove the boot clamps.
(b) Loosen the tie rod end lock nuts.
(c) Turn the left and right tie rod ends an amount to adjust the
toe±in.
Toe±in (total):
A+B 0.1  + 0.1 
C±D 1 + 1 mm (0.04 + 0.04 in.)
HINT: Insure that the lengths of the left and right tie rods are
the same.
Tie rod end length left±right error:
Less than 1.5 mm (0.059 in.)
SA±6±
SUSPENSION AND AXLE WHEEL ALIGNMENT
WhereEverybodyKnowsYourName

(d) Tighten the tie rod end lock nut.
Torque: 56 NVm (570 kgf Vcm, 41 ft Vlbf)
(e) Place the boot on the seat and clip it.
HINT: Insure that the boots are not twisted.
7. INSPECT WHEEL ANGLE Wheel angle:
 

Inside wheel
 

37
04 '
(35 04 ' ~ 38 04 ')
 

Outside wheel
(reference) 

32
23 '
If wheel angle differ from the standard specifications, check
to see if the lengths of the left and right tie rods are the same.
HINT: If the tie rods lengths are not equal, the wheel angle
can not be adjusted properly.
Reinspect the toe±in after adjusting the tie rods lengths.
±
SUSPENSION AND AXLE WHEEL ALIGNMENTSA±7
WhereEverybodyKnowsYourName

REAR WHEEL ALIGNMENT
SA1A0±01
1. MEASURE VEHICLE HEIGHTRear vehicle height (SC400):
 Tire size Rear
 P225/55R16251.7 mm (9.909 in.)
Rear vehicle height (SC300):
 Tire size Rear
 P215/60R15247.7 mm (9.752 in.)
Measuring point:
Measure from the ground to the center of the lower suspen-
sion arm No.2 mounting bolt.
NOTICE: Before inspecting the wheel alignment, adjust the vehicle height to spe\
cification.If the vehicle height is not standard, try to adjust it by pushing
down on or lifting the body.
2. INSTALL CAMBER±CASTER±KINGPIN GAUGE OR ONTO WHEEL ALIGNMENT TESTER
Follow the specific instructions of the equipment manufactur-
er.
3. INSPECT CAMBER
Camber:
 


Camber
Left±right error 


±0
553 ' + 45 '
30 ' or less
4. INSPECT TOE±IN
Toe±in (total):
A+B 0.4 5 + 0.2 5
C±D 4.5 + 2 mm (0.18 + 0.08 in.)
5. ADJUST CAMBER AND TOE±IN
(a) Measure the length of the lower suspension arm No.1 and
No.2, as shown in the illustration.
SA±10
±
SUSPENSION AND AXLE WHEEL ALIGNMENT
WhereEverybodyKnowsYourName

Length:(E±F) or (F±E) should be less 4.0 mm.
If not, adjust the length of the arms by turning the adjusting
cam, as shown, until (E±F) or (F±E) is less than 4.0 mm.
(b) Measure the camber and toe±in. Specifications:
 


Camber
Left±right error 


±0

53 ' + 30 '
30' or less
 


Toe±in 


A+B 0.4

+ 0.1

C±D 4.5 + 1 mm (0.18 + 0.04 in.)
If the camber and toe±in are still not within the specification,
adjust the camber and toe±in with the adjusting cam.
(c) Loosen and adjust the No.1 and/or No.2 cams.
(d) Adjust camber and toe±in by turning the No.1 and/ or No.2 cams.
(See adjustment chart )
(e) Torque the No.1 and/or No.2 cam nuts.
Torque: 184 N Vm (1,880 kgf Vcm, 134 ft Vlbf)
±
SUSPENSION AND AXLE WHEEL ALIGNMENTSA±11
WhereEverybodyKnowsYourName