length LEXUS GS400 2000 Service Owner's Manual

R13897Inscribed Mark
R07603
R07591
Compressed Air
R07600
Inscribed
Mark
SR±24
± STEERINGPOWER STEERING VANE PUMP (2JZ±GE)
2194 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
If it is more than the maximum, replace the plate and/or rotor
with one having the same mark stamped on the cam ring.
Inscribed mark: 1, 2, 3, 4 or None
HINT:
There are 5 vane plate lengths with the following rotor and cam
ring marks:
Rotor and cam
ring markVane plate part
numberVane plate length
mm (in.)
None44345±2601014.999±15.001
(0.59051±0.59059)
144345±2602014.997±14.999
(0.59043±0.59051)
244345±2603014.995±14.997
(0.59035±0.59043)
344345±2604014.993±14.995
(0.59027±0.59035)
444345±2605014.991±14.993
(0.59020±0.59027)
3. INSPECT FLOW CONTROL VALVE
(a) Coat the valve with power steering fluid and check that it
falls smoothly into the valve hole by its own weight.
(b) Check the flow control valve for leakage.
Close one of the holes and apply compressed air
392±490 kPa (4±5 kgf/cm
2, 57±71 psi) into the opposite
side, and confirm that air does not come out from the end
holes.
If necessary, replace the valve with one having the same letter
as inscribed on the front housing.
Inscribed mark: A, B, C, D, E or F

R08702
Calipers
W01743
SST
Oil Seal Front Housing
F02574
Press
SST Front Housing
Oil Seal
W01280
Press
Vinyl Tape
Vane Pump
Bearing Shaft
REMOVE INSTALL
± STEERINGPOWER STEERING VANE PUMP (2JZ±GE)
SR±25
2195 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
4. INSPECT SPRING
Using calipers, measure the free length of the spring.
Minimum free length: 33.2 mm (1.307 in.)
If it is not within the specification, replace the spring.
5. IF NECESSARY, REPLACE OIL SEAL
(a) Using SST, tap out the oil seal from the front housing.
SST 09631±10030
NOTICE:
Be careful not to damage the bushing of the front housing.
(b) Coat a new oil seal lip with power steering fluid.
(c) Using SST, press in the oil seal.
SST 09950±60010 (09951±00330),
09950±70010 (09951±07100)
NOTICE:
Make sure to install the oil seal facing the correct direction.
6. IF NECESSARY, REPLACE BEARING
(a) Press out the bearing from the vane pump shaft.
(b) Using snap ring expander, replace the snap ring with new
one.
NOTICE:
Be careful not to damage the shaft.
(c) Coat a new bearing with power steering fluid.
(d) Press in the bearing to the shaft.

R11292
F02548
Fulcrum
Length
SST
F02545
SST
± STEERINGPOWER STEERING VANE PUMP (2JZ±GE)
SR±27
2197 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
8. INSTALL WAVE WASHER
Install the washer so that its protrusions fit into the slots in the
side plate.
9. INSTALL REAR HOUSING
(a) Coat 2 new O±rings with power steering fluid and install
them to the housing.
(b) Torque the 2 bolts.
Torque: 24 N´m (240 kgf´cm, 17 ft´lbf)
10. INSTALL SPRING AND FLOW CONTROL VALVE
Install the valve facing the correct direction.
(See page SR±19)
11. INSTALL SOLENOID VALVE
(a) Install a new O±ring with power steering fluid and install
it to the valve.
(b) Using SST, install the valve.
SST 09922±10010
Torque: 51 N´m (524 kgf´cm, 38 ft´lbf)
NOTICE:
Use SST 09922±10010 in the direction shown in the illustra-
tion.
HINT:
Use a torque wrench with a fulcrum length of 345 mm (13.58
in.).
12. INSTALL OIL RESERVOIR
(a) Coat a new O±ring with power steering fluid and install it
to the oil reservoir.
(b) Torque the 3 bolts.
Torque:
Front side bolt: 13 N´m (130 kgf´cm, 9 ft´lbf)
Rear side bolts: 24 N´m (240 kgf´cm, 17 ft´lbf)
13. INSTALL VANE PUMP PULLEY
Using SST to stop the pulley rotating, torque the pulley set nut.
SST 09960±10010 (09962±01000, 09963±01000)
Torque: 43 N´m (440 kgf´cm, 32 ft´lbf)
14. MEASURE PS VANE PUMP ROTATING TORQUE
(See page SR±22)

F03661
SST
F03662
SST
Fulcrum
Length
R07337
Rack Groove
F03663Fulcrum Length SST
± STEERINGPOWER STEERING GEAR
SR±55
2225 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(f) Using SST and a torque wrench, tighten the cap until the
preload is within specification.
SST 09616±00010
Preload (turning):
0.5 ±1.7 N´m (4.7±17.2 kgf´cm, 4.1±14.9 in.´lbf)
12. INSTALL RACK GUIDE SPRING CAP LOCK NUT
(a) Apply sealant to 2 or 3 threads of the nut.
Sealant:
Part No.08833±00080, THREE BOND 1344,
LOCTITE 242 or equivalent
(b) Holding the rack guide spring cap rotating, and using
SST, torque the nut.
SST 09922±10010
Torque: 51 N´m (521 kgf´cm, 38 ft´lbf)
NOTICE:
Use SST 09922±10010 in the direction shown in the illustra-
tion.
HINT:
Use a torque wrench with a fulcrum length of 345 mm (13.58
in.).
(c) Recheck the total preload.
Preload (turning):
0.5 ±1.7 N´m (4.7±17.2 kgf´cm, 4.1±14.9 in.´lbf)
(d) Remove the RH and LH rack ends.
13. INSTALL RH AND LH CLAW WASHERS AND RACK
ENDS
(a) Install a new washer, and temporarily tighten the rack
end.
HINT:
Align the claws of the washer with the steering rack grooves.
(b) Using a spanner to hold the steering rack steady, and us-
ing SST, torque the rack end.
SST 09922±10010
Torque: 76 N´m (770 kgf´cm, 56 ft´lbf)
NOTICE:
Use SST 09922±10010 in the direction shown in the illustra-
tion.
HINT:
Use a torque wrench with a fulcrum length of 345 mm (13.58
in.).

R06400
Brass Bar
W00123
W04397
F02586
SSTFulcrum
Length
SR±56
± STEERINGPOWER STEERING GEAR
2226 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(c) Using a brass bar and hammer, stake the washer.
NOTICE:
Avoid any impact to the rack.
14. INSTALL RH AND LH RACK BOOTS, CLAMPS AND
CLIPS
(a) Ensure that the tube hole is not clogged with grease.
HINT:
If the tube hole is clogged, the pressure inside the boot will
change after it is assembled and the steering wheel is turned.
(b) Install the boot.
NOTICE:
Be careful not to damage or twist the boot.
(c) Using pliers tighten a new clamp, as shown in the illustra-
tion.
15. INSTALL RH AND LH TIE ROD ENDS AND LOCK NUTS
(a) Screw the lock nut and tie rod end onto the rack end until
the matchmarks are aligned.
(b) After adjusting toe±in, torque the nut.
(See page SA±4)
Torque: 55 N´m (560 kgf´cm, 41 ft´lbf)
16. INSTALL 2 TURN PRESSURE TUBES
(a) Install a new union seat to the rack housing.
(b) Using SST, install the tube.
SST 09633±00020
Torque: 20 N´m (203 kgf´cm, 15 ft´lbf)
HINT:

Use a torque wrench with a fulcrum length of 300 mm
(11.81 in.).

This torque value is effective in case that SST is parallel
to a torque wrench.

F02400
SA1204
± SUSPENSION AND AXLEFRONT WHEEL ALIGNMENT
SA±5
2005 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
5. ADJUST CAMBER
HINT:

After adjusting the camber, inspect the caster and toe±in.

Try adjusting the camber to the center value of the specifi-
cation.
(a) Loosen the camber adjusting cam nut of the lower sus-
pension arm.
(b) Turn the camber adjusting cam of the lower suspension
arm and adjust camber.
HINT:
Camber changes about 5' (0.08°) with each graduation of the
adjusting cam.
(c) Torque the camber adjusting cam nut of lower suspension
arm.
Torque: 172 N´m (1,755 kgf´cm, 127 ft´lbf)
6. ADJUST TOE±IN
(a) Remove the boot clips.
(b) Loosen the tie rod end lock nuts.
(c) Turn the left and right rack ends an equal amount to adjust
the toe±in.
HINT:

Try to adjust the toe±in to the center value.

Make sure that the lengths of the left and right rack ends
are same.
Rack end length difference: 1.5 mm (0.059 in.) or less
(d) Torque the tie rod end lock nuts.
Torque: 56 N´m (570 kgf´cm, 41 ft´lbf)
(e) Place the boot on the seat and clamp it.
HINT:
Make sure that the boots are not twisted.

R06938
SSTClearance
R08199
R07026
SA±58
± SUSPENSION AND AXLEREAR DRIVE SHAFT
2058 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(d) Using SST, adjust the clearance of the clamp.
SST 09240±00020 (09242±00080)
Clearance: 0.8 mm (0.031 in.) or less
(e) The drive shaft is designed to move ±20 mm (0.79 in.)
from the normal position.
Drive shaft standard length:
RH598.5 mm (23.563 in.)
LH553.5 mm (21.791 in.)
8. INSTALL NEW END COVER
(a) Pack grease into the end cover.
Grease capacity50 ± 55 g (1.8 ±1.9 oz.)
(b) Remove grease from the surface of the inboard joint fac-
ing to the cover.
(c) Glue on a new gasket, with the glued side facing toward
the outer race side of the inboard joint.
(d) Align the bolt holes of the cover with those of the inboard
joint.
(e) Install the 6 hexagon bolts and washers from the end cov-
er side.
(f) Install the 6 nuts to the boot side.
(g) Using a 10 mm hexagon wrench, tighten the bolts. Do this
in the order shown, and repeat several times.
(h) Check that the claw of the end cover touches the inboard
joint.
9. CHECK DRIVE SHAFT (See page SA±54)

SA0R4±01
SA3213
D AB
C Front
F03479
A
B
F02401
± SUSPENSION AND AXLEREAR WHEEL ALIGNMENT
SA±7
2007 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REAR WHEEL ALIGNMENT
INSPECTION
1. MEASURE VEHICLE HEIGHT (See page SA±4)
2. INSTALL CAMBER±CASTER±KINGPIN GAUGE
ONTO WHEEL ALIGNMENT TESTER
Follow the specific instructions of the equipment manufacturer.
3. INSPECT CAMBER
Camber
Left±right error±0°47' ± 30' (±0.78° ± 0.5°)
30' (0.5°) or less
4. INSPECT TOE±IN
Toe±in
(total)A + B: 0°08' ± 12' (0.13° ± 0.2°)
C ± D: 1.4 ± 2 mm (0.056 ± 0.08 in.)
5. ADJUST CAMBER AND TOE±IN
(a) Measure the lengths of the toe control link and No.2 lower
suspension arm, as shown in the illustration.
Length: A ± B = 4.0 mm (0.16 in.) or less
If they are not within the specifications, adjust the lengths of
them by turning the adjusting cam, as shown, until (A ± B) is less
than 4.0 mm (0.16 in.).
(b) Measure the camber and toe±in.
(c) Adjust the camber.
(1) Loosen the camber adjusting cam nut of lower sus-
pension arm No.2.
(2) Turn the camber adjusting cam of lower suspension
arm No.2 and adjust camber.
HINT:
Camber changes about 5.0' (0.08°) with each graduation of the
cam.
(3) Torque the camber adjusting cam nut.
Torque: 110 N´m (1,120 kgf´cm, 81 ft´lbf)