length LEXUS GS400 2000 Service User Guide

SS0E6±02
±
SS±21
177 Author: Date:
CHARGING (2JZ±GE)
SERVICE DATA
BatteryVoltage (Maintenance±free battery) at 20°C (68°F)
Specific gravity (Except maintenance±free battery)
at 20°C (68°F)12.5 ± 12.9 V
1.25 ± 1.29
GeneratorRated output
Rotor coil resistance at 20°C (68°C)
Slip ring diameter STD
Minimum
Brush exposed length STD
Minimum12 V 80 A
2.2 ± 2.4 W
14.2 ± 14.4 mm (0.559 ± 0.567 in.)
12.8 mm (0.504 in.)
9.5 ±11.5 mm (0.374 ±0.453 in.)
1.5 mm (0.059 in.)
Voltage regulatorRegulating voltage13.2 ± 14.8 V

SS0FD±01
± SERVICE SPECIFICATIONSSUSPENSION AND AXLE
SS±49
205 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
SUSPENSION AND AXLE
SERVICE DATA
Cold tire inflation
pressure
(GS 400)
Tire size
225/55R16 94V *1Front
*1Rear
*2Front
*2Rear
235/45ZR17 *1Front
*1Rear
*2Front
*2Rear
220 kPa (2.2 kgf/cm2
or bar, 32 psi)
220 kPa (2.2 kgf/cm2 or bar, 32 psi)
290 kPa (2.9 kgf/cm2 or bar, 42 psi)
290 kPa (2.9 kgf/cm2 or bar, 42 psi)
230 kPa (2.3 kgf/cm2 or bar, 33 psi)
230 kPa (2.3 kgf/cm2 or bar, 33 psi)
300 kPa (3.0 kgf/cm2 or bar, 44 psi)
300 kPa (3.0 kgf/cm2 or bar, 44 psi)
Cold tire inflation
pressure
(GS 300)
Tire size
P215/60R16 94V *1Front
*1Rear
*2Front
*2Rear
225/55R16 94V *1Front
*1Rear
*2Front
*2Rear
210 kPa (2.1 kgf/cm2 or bar, 30 psi)
210 kPa (2.1 kgf/cm2 or bar, 30 psi)
300 kPa (3.0 kgf/cm2 or bar, 44 psi)
300 kPa (3.0 kgf/cm2 or bar, 44 psi)
220 kPa (2.2 kgf/cm2 or bar, 32 psi)
220 kPa (2.2 kgf/cm2 or bar, 32 psi)
300 kPa (3.0 kgf/cm2 or bar, 44 psi)
300 kPa (3.0 kgf/cm2 or bar, 44 psi)
Vehicle height
P215/60R16 *3Front
*4Rear
225/55R16 *3Front
*4Rear
235/45ZR17 *3Front
*4Rear
243 mm (9.63 in.)
226 mm (8.90 in.)
240 mm (9.45 in.)
221 mm (8.70 in.)
238 mm (9.37 in.)
219 mm (8.62 in.)
Camber
Left±right error±0°16' ± 30' (±0.27° ± 0.5°)
30' (0.5°) or less
Front wheel
alignmentCaster
Left±right error7°33' ± 30' (7.55° ± 0.5°)
30' (0.5°) or less
Steering axis inclination
Left±right error8°52' ± 30' (8.87° ± 0.5°)
30' (0.5°) or less
Toe±in (total)
Rack end length difference0°09' ± 12' (0.15° ± 0.2°, 1.5 ± 2 mm, 0.06 ± 0.08 in.)
1.5 mm (0.059 in.) or less
Wheel angle Inside wheel
Outside wheel: Reference38°51' (36°51' - 39°51')
38.85° (36.85° - 39.85°)
32°05'
32.08°
Rear wheel
Camber
Left±right error±0°47' ± 30' (±0.78° ± 0.5°)
30' (0.5°) or less
Rear wheel
alignment
Toe±in (total)
Link and arm length difference0°08' ± 12' (0.13° ± 0.2°, 1.4 ± 2 mm, 0.056 ± 0.08 in.)
4.0 mm (0.16 in.) or less
FtlWheel bearing backlash0.05 mm (0.0020 in.)Front axleAxle hub deviation0.05 mm (0.0020 in.)
*1: For driving under 160 km/h (100 mph)
*
2: For driving at 160 km/h (100 mph) or over
*
3: Measure from the ground to the center of the lower suspension arm mounting bolt.
*
4: Measure from the ground to the center of the No.2 lower suspension arm mounting bolt.

SS±50
± SERVICE SPECIFICATIONSSUSPENSION AND AXLE
206 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
Upper ball joint turning torque1.0 ± 3.4 N´m (10 ± 35 kgf´cm, 9 ± 30 in.´lbf)
Ft iLower ball joint turning torque0.1 ± 2.0 N´m (1 ± 20 kgf´cm, 0.9 ± 17 in.´lbf)Front suspensionLower ball joint excessive play0.9 mm (0.035 in.)
Stabilizer bar link ball joint turning torque0.05 ± 1.5 N´m (0.5 ± 15 kgf´cm, 0.4 ± 13 in.´lbf)
RlWheel bearing backlash0.05 mm (0.0020 in.)Rear axleAxle hub deviation0.07 mm (0.0028 in.)
Rear drive shaftDrive shaft length RH
LH598.5 mm (23.563 in.)
553.5 mm (21.791 in.)
Upper ball joint turning torque1.0 ± 3.4 N´m (10 ± 35 kgf´cm, 9 ± 30 in.´lbf)
Rear suspensionToe control link ball joint turning torque1.0 ± 2.5 N´m (10 ± 25 kgf´cm, 9 ± 22 in.´lbf)Rear sus ension
Stabilizer bar link ball joint turning torque0.05 ± 1.0 N´m (0.5 ± 10 kgf´cm, 0.4 ± 9 in.´lbf)
Drive pinion shaft runout Maximum0.08 mm (0.0031 in.)
Ring gear runout Maximum0.05 mm (0.0020 in.)
Ring gear backlash Maximum0.08 ± 0.13 mm (0.0031 ± 0.0051 in.)
Drive pinion bearing (at starting) New bearing
Reused bearing1.5 ± 1.8 N´m (15 ± 18 kgf´cm, 13.0 ± 15.6 in.´lbf)
0.5 ± 0.8 N´m (5 ± 8 kgf´cm, 4.3 ± 6.9 in.´lbf)
Total preload (at starting)Drive pinion preload plus
0.5 ± 0.8 N´m (5 ± 8 kgf´cm, 4.3 ± 6.9 in.´lbf)
Rear differentialPinion gear backlash Maximum0.15 mm (0.0059 in.)Rear differential
Pinion gear backlash adjusting thrust washer
1.50 mm (0.059 in.)
1.55 mm (0.061 in.)
1.60 mm (0.063 in.)
1.65 mm (0.065 in.)
1.70 mm (0.067 in.)
1.75 mm (0.069 in.)
1.80 mm (0.071 in.)
1.85 mm (0.073 in.)
1.90 mm (0.075 in.)

SS0FH±05
± SERVICE SPECIFICATIONSENGINE MECHANICAL (2JZ±GE)
SS±5
161 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
ENGINE MECHANICAL (2JZ±GE)
SERVICE DATA
Compression
pressureat 250 rpm STD
Minimum
Difference of pressure between each cylinder1,324 kPa (13.5 kgf/cm2, 192 psi) or more
1,079 kPa (11.0 kgf/cm2, 156 psi)
98 kPa (1.0 kgf/cm2, 14 psi) or less
Valve
clearanceat cold Intake
Exhaust
Adjusting shim (for repair part) Mark 2.500
Mark 2.550
Mark 2.600
Mark 2.650
Mark 2.700
Mark 2.750
Mark 2.800
Mark 2.850
Mark 2.900
Mark 2.950
Mark 3.000
Mark 3.050
Mark 3.100
Mark 3.150
Mark 3.200
Mark 3.250
Mark 3.3000.15 ± 0.25 mm (0.006 ± 0.010 in.)
0.25 ± 0.35 mm (0.010 ± 0.014 in.)
2.500 mm (0.0984 in.)
2.550 mm (0.1004 in.)
2.600 mm (0.1024 in.)
2.650 mm (0.1043 in.)
2.700 mm (0.1063 in.)
2.750 mm (0.1083 in.)
2.800 mm (0.1102 in.)
2.850 mm (0.1122 in.)
2.900 mm (0.1142 in.)
2.950 mm (0.1161 in.)
3.000 mm (0.1181 in.)
3.050 mm (0.1201 in.)
3.100 mm (0.1220 in.)
3.150 mm (0.1240 in.)
3.200 mm (0.1260 in.)
3.250 mm (0.1280 in.)
3.300 mm (0.1299 in.)
Ignition timingw/ Terminals TE and E1 connected of DLC110° ± 2° BTDC @ idle
Idle speed700 ± 50 rpm
Timing belt
tensionerProtrusion (from housing side)8.0 ± 8.8 mm (0.315 ± 0.346 in.)
Cylinder headWarpage
Cylinder block side Maximum
Intake manifold sideMaximum
Exhaust manifold side Maximum
Valve guide bore diameter STD
O/S 0.05
Valve seat
Refacing angle
Contacting angle
Contacting width Intake
Exhaust
Cylinder head bolt diameter STD
Minimum
0.10 mm (0.0039 in.)
0.10 mm (0.0039 in.)
0.10 mm (0.0039 in.)
10.985 ± 11.006 mm (0.4325 ± 0.4333 in.)
11.035 ± 11.056 mm (0.4344 ± 0.4353 in.)
15°, 45°, 75°
45°
1.0 ± 1.4 mm (0.039 ± 0.055 in.)
1.2 ± 1.6 mm (0.047 ± 0.063 in.)
10.8 ± 11.0 mm (0.425 ± 0.433 in.)
10.7 mm (0.421 in.)
Valve guide
bushingInside diameter
Outside diameter (for repair part) STD
O/S 0.056.010 ± 6.030 mm (0.2366 ± 0.2374 in.)
11.033 ± 11.044 mm (0.4344 ± 0.4348 in.)
11.083 ± 11.094 mm (0.4363 ± 0.4368 in.)
ValveValve overall length STD Intake
Exhaust
Minimum Intake
Exhaust
Valve face angle
Stem diameterIntake
Exhaust98.29 ± 98.79 mm (3.8697 ± 3.8894 in.)
98.84 ± 99.34 mm (3.8913 ± 3.9110 in.)
98.19 mm (3.8657 in.)
98.74 mm (3.8874 in.)
44.5°
5.970 ± 5.985 mm (0.2350 ± 0.2356 in.)
5.965 ± 5.980 mm (0.2348 ± 0.2354 in.)

SS±6
± SERVICE SPECIFICATIONSENGINE MECHANICAL (2JZ±GE)
162 Author: Date:
2000 LEXUS GS300/GS400 (RM718U) Valve (cont'd)
Stem oil clearance STD Intake
Exhaust
Maximum Intake
Exhaust
Margin thickness STD
Minimum0.025 ± 0.060 mm (0.0010 ± 0.0024 in.)
0.030 ± 0.065 mm (0.0012 ± 0.0026 in.)
0.08 mm (0.0031 in.)
0.10 mm (0.0039 in.)
0.8 ± 1.2 mm (0.031 ± 0.047 in.)
0.5 mm (0.020 in.)
Valve springDeviation Maximum
Free lengthPink painted mark
Yellow painted mark
Installed tension at 34.5 mm (1.358 in.)2.0 mm (0.079 in.)
43.71 mm (1.7209 in.)
44.10 mm (1.7362 in.)
186.2 ± 205.8 N (19.0 ± 21.0 kgf, 41.9 ± 46.3 lbf)
Valve lifterLifter diameter
Lifter bore diameter
Oil clearance STD
Maximum30.966 ± 30.976 mm (1.2191 ± 1.2195 in.)
31.000 ± 31.016 mm (1.2205 ± 1.2211 in.)
0.024 ± 0.050 mm (0.0009 ± 0.0020 in.)
0.07 mm (0.0028 in.)
CamshaftThrust clearance STD
Maximum
Cam lobe height STD Intake
Exhaust
Maximum Intake
Exhaust
Journal diameter
Journal oil clearance STD
Maximum
Circle runout Maximum0.080 ± 0.190 mm (0.0031 ± 0.0075 in.)
0.30 mm (0.0118 in.)
44.310 ± 44.360 mm (1.7445 ± 1.7465 in.)
44.250 ± 44.350 mm (1.7421 ± 1.7461 in.)
44.16 mm (1.7386 in.)
44.10 mm (1.7362 in.)
28.949 ± 28.965 mm (1.1397 ± 1.1404 in.)
0.035 ± 0.072 mm (0.0014 ± 0.0028 in.)
0.10 mm (0.0039 in.)
0.08 mm (0.0031 in.)
Air intake
chamberWarpage Maximum0.15 mm (0.0059 in.)
ManifoldWarpageMaximum Intake
Exhaust0.15 mm (0.0059 in.)
0.50 mm (0.0196 in.)
Cylinder blockCylinder head surface warpage Maximum
Cylinder bore diameter STD
Maximum
Main bearing bolt diameter STD
Minimum0.07 mm (0.0028 in.)
86.000 ± 86.013 mm (3.3858 ± 3.3863 in.)
86.02 mm (3.3866 in.)
9.96 ± 9.97 mm (0.3921 ± 0.3925 in.)
9.7 mm (0.382 in.)
Connecting
rodThrust clearance STD
Maximum
Connecting bolt diameter STD
Minimum
Connecting rod oil clearance STD STD
U/S 0.25
Maximum STD
U/S 0.25
Connecting rod bearing center wall thickness
(Reference) STD Mark 1
Mark 2
Mark 3
Mark 4
Mark 5
Bushing inside diameter
Piston pin diameter
Piston pin oil clearance STD
Maximum
Rod out ± of alignment Maximum per 100 mm (3.94 in.)
Rod twist Maximum per 100 mm (3.94 in.)0.250 ± 0.402 mm (0.0098 ± 0.0158 in.)
0.50 mm (0.0197 in.)
8.1 ± 8.3 mm (0.319 ± 0.327 in.)
8.0 mm (0.315 in.)
0.023 ± 0.041 mm (0.0009 ± 0.0016 in.)
0.028 ± 0.066 mm (0.0011 ± 0.0026 in.)
0.07 mm (0.0027 in.)
0.08 mm (0.0031 in.)
1.498 ± 1.501 mm (0.0590 ± 0.0591 in.)
1.501 ± 1.504 mm (0.0591 ± 0.0592 in.)
1.504 ± 1.507 mm (0.0592 ± 0.0593 in.)
1.507 ± 1.510 mm (0.0593 ± 0.0594 in.)
1.510 ± 1.513 mm (0.0594 ± 0.0596 in.)
22.005 ± 22.014 mm (0.8663 ± 0.8667 in.)
21.997 ± 22.006 mm (0.8660 ± 0.8664 in.)
0.005 ± 0.011 mm (0.0002 ± 0.0004 in.)
0.05 mm (0.0020 in.)
0.05 mm (0.0020 in.)
0.15 mm (0.0059 in.)

SS0F3±01
± SERVICE SPECIFICATIONSSTEERING
SS±57
213 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
STEERING
SERVICE DATA
POWER STEERING FLUID
Fluid level rise Maximum5 mm (0.20 in.)
Fluid pressure at idle speed with valve closed Minimum8,336 kPa (85 kgf/cm2, 1,209 psi)
STEERING WHEEL
Steering wheel freeplayMaximum30 mm (1.18 in.)
Steering effort at idle speedMaximum7 N´m (70 kgf´cm, 61 in.´lbf)
PS VANE PUMP
2JZ±GE Engine:
Vane pump rotating torqueMaximum0.25 N´m (2.5 kgf´cm, 2.2 in.´lbf)
Oil clearance between pump shaft and bushing STD0.03 ± 0.05 mm (0.0012 ± 0.0020 in.)
Oil clearance between pump shaft and bushingMaximum0.07 mm (0.0028 in.)
Vane plate heightMinimum8.6 mm (0.339 in.)
Vane plate thickness Minimum1.40 mm (0.0551 in.)
Vane plate lengthMinimum14.99 mm (0.5902 in.)
Clearance between the rotor groove and plateMaximum0.033 mm (0.0013 in.)
Vane plate length Pump rotor and cam ring mark
NONE14.999 ± 15.001 mm (0.59051 ± 0.59059 in.)
114.997 ± 14.999 mm (0.59043 ± 0.59051 in.)
214.995 ± 14.997 mm (0.59035 ± 0.59043 in.)
314.993 ± 14.995 mm (0.59027 ± 0.59035 in.)
414.991 ± 14.993 mm (0.59020 ± 0.59027 in.)
Spring free lengthMinimum33.2 mm (1.307 in.)
1UZ±FE Engine:
Vane pump rotating torqueMaximum0.25 N´m (2.5 kgf´cm, 2.2 in.´lbf)
Oil clearance between pump shaft and bushing STD0.03 ± 0.05 mm (0.0012 ± 0.0020 in.)
Oil clearance between pump shaft and bushingMaximum0.07 mm (0.0028 in.)
Vane plate heightMinimum8.0 mm (0.315 in.)
Vane plate thickness Minimum1.77 mm (0.0697 in.)
Vane plate lengthMinimum14.97 mm (0.5894 in.)
Clearance between the rotor groove and plateMaximum0.035 mm (0.0014 in.)
Vane plate length Pump rotor and cam ring mark
NONE14.996 ± 14.998 mm (0.59039 ± 0.59047 in.)
114.994 ± 14.996 mm (0.59032 ± 0.59039 in.)
214.992 ± 14.994 mm (0.59024 ± 0.59032 in.)
314.990 ± 14.992 mm (0.59016 ± 0.59024 in.)
414.988 ± 14.990 mm (0.59008 ± 0.59016 in.)
Spring free lengthMinimum36.0 mm (1.42 in.)
POWER STEERING GEAR
Steering rack runout Maximum0.30 mm (0.0118 in.)
Total preload (Control valve rotating torque)0.5 ± 1.7 N´m (4.7 ± 17.2 kgf´cm, 4.1 ± 14.9 in.´lbf)
PROGRESSIVE POWER STEERING (PPS)
PPS solenoid valve resistance6 ± 11 W

B01875
Fuel
Pump
Connector
B01998
New
Gasket
New
Gasket
FI1654
SST
Fulcrum Length
30 cm
± SFI (2JZ±GE)SFI SYSTEM
SF±3
1469 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
8. FUEL SYSTEM
(a) When disconnecting the high pressure fuel line, a large
amount of gasoline will spill out, so observe these proce-
dures:
(1) Disconnect the fuel pump connector.
(2) Start the engine. After the engine has stopped on
its own, turn the ignition switch OFF.
(3) Put a container under the connection.
(4) Slowly loosen the connection.
(5) Disconnect the connection.
(6) Plug the connection with a rubber plug.
(7) Reconnect the fuel pump connector.
(b) When connecting the flare nut or union bolt on the high
pressure pipe union, observe these procedures:
(1) Union Bolt Type:
Always use a new gasket.
(2) Union Bolt Type:
Tighten the union bolt by hand.
(3) Union Bolt Type:
Tighten the union bolt to the specified torque.
Torque: 29 N´m (300 kgf´cm, 22 ft´lbf)
(4) Flare Nut Type:
Apply a light coat of engine oil to the flare and tight-
en the flare nut by hand.
(5) Flare Nut Type:
Using SST, tighten the flare nut to the specified
torque.
SST 09631±22020
NOTICE:
Do not rotate the fuel pipe, when tightening the flare nut.
Torque:
30 N´m (310 kgf´cm, 22 ft´lbf) for using SST
38 N´m (387 kgf´cm, 28 ft´lbf)
HINT:
Use a torque wrench with a fulcrum length of 30 cm (11.81 in.).

SF0NI±03
BO0919
Crack Leakage
Deformation
Z10162
SSTUse SST
30 N´m
(310 kgf´cm, 22 ft´lbf)
Fulcrum
Length
30 cm
(11.81 in.)
SST: 09631±22020
FU0041
PipeHose
Clip 2 ± 7 mm (0.08 ± 0.28 in.)
0 ± 3 mm (0 ± 0.12 in.)
± SFI (2JZ±GE)FUEL TANK AND LINE
SF±29
1495 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSPECTION
INSPECT FUEL TANK AND LINE
(a) Check the fuel lines for cracks or leakage, and all connec-
tions for deformation.
(b) Check the fuel tank vapor vent system hoses and connec-
tions for looseness, sharp bends or damage.
(c) Check the fuel tank for deformation, cracks, fuel leakage
or tank band looseness.
(d) Check the filler neck for damage or fuel leakage.
(e) Hose and pipe connections are as shown in the illustra-
tion.
If a problem is found, repair or replace the parts as necessary.

P10588
Ohmmeter
Continuity
P10589
Ohmmeter
No Continuity
Z07019
Brush Holder Side
Field Frame Side
Length
Length
ST0019
ST±8
± STARTING (2JZ±GE)STARTER
1626 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
3. INSPECT FIELD COIL
(a) Check the field coil for open circuit.
Using an ohmmeter, check that there is continuity be-
tween the lead wire and field coil brush lead.
If there is no continuity, replace the field frame.
(b) Check the field coil for ground.
Using an ohmmeter, check that there is no continuity be-
tween the field coil end and field frame.
If there is continuity, replace the field frame.
4. INSPECT BRUSHES
Using a vernier caliper, measure the brush length.
Standard length: 15.5 mm (0.610 in.)
Minimum length: 10.0 mm (0.394 in.)
If the length is less than minimum, replace the brush holder and
field frame.
5. INSPECT BRUSH SPRINGS
Check the brush spring load. Take the pull scale reading the
instant the brush spring separates from the brush.
Standard spring installed load:
17.6 ± 23.5 N (1.8 ± 2.4 kgf, 3.9 ± 5.3 lbf)
Minimum spring installed load:
11.8 N (1.2 kgf, 2.6 lbf)
If the installed load is less than minimum, replace the brush
springs.

SR0DT±01
W01278
Vane Pump Shaft
Front Housing
Bushing
N00372
HeightThickness
Length
R10282
Feeler Gauge
± STEERINGPOWER STEERING VANE PUMP (2JZ±GE)
SR±23
2193 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSPECTION
NOTICE:
When using a vise, do not overtighten it.
1. CHECK OIL CLEARANCE BETWEEN VANE PUMP
SHAFT AND BUSHING
Using a micrometer and caliper gauge, measure the oil clear-
ance.
Standard clearance:
0.03 ± 0.05 mm (0.0012 ± 0.0020 in.)
Maximum clearance: 0.07 mm (0.0028 in.)
If it is more than the maximum, replace the shaft and front hous-
ing.
2. INSPECT VANE PUMP ROTOR AND VANE PLATES
(a) Using a micrometer, measure the height, thickness and
length of the 10 plates.
Minimum height: 8.6 mm (0.339 in.)
Minimum thickness: 1.40 mm (0.0551 in.)
Minimum length: 14.99 mm (0.5902 in.)
(b) Using a feeler gauge, measure the clearance between
the rotor groove and plate.
Maximum clearance: 0.033 mm (0.0013 in.)