length LEXUS GS400 2000 Service Repair Manual

D00754
A
CB
B
B
B
C
CA
DB
AT±10
± AUTOMATIC TRANSMISSIONVALVE BODY ASSEMBLY
1958 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(b) Install the 21 bolts.
Torque: 10 N´m (100 kgf´cm, 7 ft´lbf)
Bolt length:
Bolt A: 23 mm (0.91 in.)
Bolt B: 28 mm (1.10 in.)
Bolt C: 36 mm (1.42 in.)
Bolt D: 55 mm (2.17 in.)
12. INSTALL SOLENOID WIRING WITH ATF TEMPERA-
TURE SENSOR (See page AT±5)
13. INSTALL OIL STRAINER (See page AT±5)
14. INSTALL OIL PAN (See page AT±5)
15. INSTALL DRAIN PLUG WITH NEW GASKET
Torque: 20 N´m (205 kgf´cm, 15 ft´lbf)
16. FILL FLUID AND CHECK FLUID (See page DI±318)

P13535
Length
B01954
Ohmmeter
Positive (+)
Terminal
Rectifier
Terminal
B01933
Ohmmeter
Negative (±) Terminal
CH±10
± CHARGING (2JZ±GE)GENERATOR
1612 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
3. INSPECT BRUSHES
Using vernier calipers, measure the exposed brush length.
Standard exposed length:
9.5 ± 11.5 mm (0.374 ± 0.453 in.)
Minimum exposed length: 1.5 mm (0.059 in.)
If the exposed length is less than minimum, replace the brush
holder assembly.
4. INSPECT RECTIFIERS (RECTIFIER HOLDER)
(a) Check the positive (+) rectifier.
(1) Using an ohmmeter, connect one tester prob to the
positive (+) terminal and the other to each rectifier
terminal.
(2) Reverse the polarity of the tester probes and repeat
step (a).
(3) Check that one shows continuity and the other
shows no continuity.
If continuity is not as specified, replace the rectifier holder.
(b) Check the negative (±) rectifier.
(1) Using an ohmmeter, connect one tester probe to
each negative (±) terminal and the other to each
rectifier terminal.
(2) Reverse the polarity of the tester probes and repeat
step (a).
(3) Check that one shows continuity and the other
shows no continuity.
If continuity is not as specified, replace the rectifier holder.
5. INSPECT BEARING
Check the bearing is not rough or worn.
If necessary, replace the bearing. (See page CH±11)

EM2534
Overall
Length
EM0255
A02709
45° Carbide Cutter
Z00373
Width
P03966
Width 45°
15°
± ENGINE MECHANICAL (2JZ±GE)CYLINDER HEAD
EM±43
1397 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(d) Check the valve overall length.
Standard overall length:
Intake98.29 ± 98.79 mm (3.8697 ± 3.8894 in.)
Exhaust98.84 ± 99.34 mm (3.8913 ± 3.9110 in.)
Minimum overall length:
Intake98.19 mm (3.8657 in.)
Exhaust98.74 mm (3.8874 in.)
If the overall length is less than minimum, replace the valve.
(e) Check the surface of the valve stem tip for wear.
If the valve stem tip is worn, resurface the tip with a grinder or
replace the valve.
NOTICE:
Do not grind off more than the minimum overall length.
7. INSPECT AND CLEAN VALVE SEATS
(a) Using a 45° carbide cutter, resurface the valve seats.
Remove only enough metal to clean the seats.
(b) Check the valve seating position.
Apply a thin coat of Prussian blue (or white lead) to the
valve face. Lightly press the valve against the seat. Do not
rotate the valve.
(c) Check the valve face and seat for the following:

If blue appears 360° around the face, the valve is
concentric. If not, replace the valve.

If blue appears 360° around the valve seat, the
guide and face are concentric. If not, resurface the
seat.

Check that the seat contact is in the middle of the
valve face with the following width:
If not, correct the valve seats as follows:
Intake1.0 ± 1.4 mm (0.039 ± 0.055 in.)
Exhaust1.2 ± 1.6 mm (0.047 ± 0.063 in.)
(1) If the seating is too high on the valve face, use 15°
and 45° cutters to correct the seat.

Z02456Width 75°
45°
A02710
Z02457
Deviation
EM0801
EM0281
EM±44
± ENGINE MECHANICAL (2JZ±GE)CYLINDER HEAD
1398 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(2) If the seating is too low on the valve face, use 75°
and 45° cutters to correct the seat.
(d) Hand±lap the valve and valve seat with an abrasive com-
pound.
(e) After hand±lapping, clean the valve and valve seat.
8. INSPECT VALVE SPRINGS
(a) Using a steel square, measure the deviation of the valve
spring.
Maximum deviation: 2.0 mm (0.079 in.)
If deviation is greater than maximum, replace the valve spring.
(b) Using vernier calipers, measure the free length of the
valve spring.
Free length:
Pink painted mark43.71 mm (1.7209 in.)
Yellow painted mark44.10 mm (1.7362 in.)
If the free length is not as specified, replace the valve spring.
(c) Using a spring tester, measure the tension of the valve
spring at the specified installed length.
Installed tension:
186.2 ± 205.8 N (19.0 ± 21.0 kgf, 41.9 ± 46.3 lbf)
at 34.5 mm (1.358 in.)
If the installed tension is not as specified, replace the valve
spring.

IN±38
± INTRODUCTIONTERMS
38 Author: Date:
2000 LEXUS GS300/GS400 (RM718U) H±FUSE
High Current Fuse
HIHigh
HIDHigh Intensity Discharge (Head Lamp)
HSGHousing
HTHard Top
HWSHeated Windshield System
IACIdle Air Control
ICIntegrated circuit
IDIIndirect Diesel Injection
IFSIndependent Front Suspension
IGIgnition
IIAIntegrated Ignition Assembly
INIntake (Manifold, Valve)
INTIntermittent
I/PInstrument Panel
IRSIndependent Rear Suspension
J/BJunction Block
J/CJunction Connector
KDKick±Down
LANLocal Area Network
LBLiftback
LCDLiquid Crystal Display
LEDLight Emitting Diode
LHLeft±Hand
LHDLeft±Hand Drive
L/H/WLength, Height, Width
LLCLong±Life Coolant
LNGLiquified Natural Gas
LOLow
LPGLiquified Petroleum Gas
LSDLimited Slip Differential
LSP & PVLoad Sensing Proportioning And Bypass Valve
LSPVLoad Sensing Proportioning Valve
MAX.Maximum
MICMicrophone
MILMalfunction Indicator Lamp
MIN.Minimum
MPMultipurpose
MPXMultiplex Communication System
M/TManual Transmission
MTMount
MTGMounting
NNeutral
NANatural Aspiration
No.Number
O/DOverdrive

LU05H±03
B02008
B01628
SST
B02226
Addition
3/4 TurnSST
LU±2
± LUBRICATION (2JZ±GE)OIL AND FILTER
1574 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REPLACEMENT
CAUTION:

Prolonged and repeated contact with mineral oil will
result in the removal of natural fats from the skin,
leading to dryness, irritation and dermatitis. In addi-
tion, used engine oil contains potentially harmful
contaminants which may cause skin cancer.

Exercise caution in order to minimize the length and
frequency of contact of your skin to used oil. Wear
protective clothing and gloves. Wash your skin thor-
oughly with soap and water, or use water±less hand
cleaner, to remove any used engine oil. Do not use
gasoline, thinners, or solvents.

In order to preserve the environment, used oil and
used oil filters must be disposed of only at desig-
nated disposal sites.
1. DRAIN ENGINE OIL
(a) Remove the oil filler cap.
(b) Remove the oil drain plug, and drain the oil into a contain-
er.
2. REPLACE OIL FILTER
(a) Remove the 3 screws, and bend the engine under cover.
(b) Using SST, remove the oil filter.
SST 09228±07501
(c) Clean the oil filter contact surface on the oil filter mount-
ing.
(d) Lubricate the filter rubber gasket with clean engine oil.
(e) Tighten the oil filter by hand until the rubber gasket con-
tacts the seat of the filter mounting.
(f) Using SST, tighten it an additional 3/4 turn to seat the fil-
ter.
SST 09228±07501
(g) Reinstall the engine under cover with the 3 screws.
3. FILL WITH ENGINE OIL
(a) Clean and install the oil drain plug with a new gasket.
Torque: 38 N´m (380 kgf´cm, 28 ft´lbf)

P09958
MA01R±01
MA±6
± MAINTENANCEBRAKE
49 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
BRAKE
INSPECTION
1. INSPECT BRAKE LINE PIPES AND HOSES
HINT:
Check in a well lighted area. Check the entire circumference
and length of the brake hoses using a mirror as required. Turn
the front wheels fully right or left before checking the front brake.
(a) Check all brake lines and hoses for.

Damage

Wear

Deformation

Cracks

Corrosion

Leaks

Bends

Twists
(b) Check all clamps for tightness and connections for leak-
age.
(c) Check that the hoses and lines are clear of sharp edges,
moving parts and the exhaust system.
(d) Check that the lines install in grommets pass through the
center of the grommets.
2. INSPECT FRONT AND REAR BRAKE PADS AND
DISCS
(FRONT PADS: See page BR±16)
(REAR PADS: See page BR±25)
(FRONT DISCS: See page BR±21)
(REAR DISCS: See page BR±30)
3. INSPECT PARKING BRAKE LININGS AND DRUMS
(See page BR±35)
4. INSPECT OR CHANGE BRAKE FLUID
(See page BR±4)
Fluid: SAE J1703 or FMVSS No.116 DOT3

PP0T0±01
PP±90
± PREPARATIONSUPPLEMENTAL RESTRAINT SYSTEM
142 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
EQUIPMENT
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: 360 mm (14.17 in.)Airbag disposal
Tire with disc wheel Width: 185 mm (7.28 in.)
Inner diam: 360 mm (14.17 in.)Airbag disposal
Vinyl bagAirbag disposal

Z10210
SST
± PROPELLER SHAFTPROPELLER SHAFT ASSEMBLY
PR±11
1998 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(i) Using SST, tighten the adjusting nut.
SST 09922±10010
Torque: 50 N´m (515 kgf´cm, 37 ft´lbf)
HINT:
Use a torque wrench with a fulcrum length of 34.5 cm (13.6 in.).
2. INSPECT JOINT ANGLE (See page PR±12)
NOTICE:
The joint angle should by all means be checked when the
propeller shaft is removed and installed.
3. INSTALL 2 HEAT INSULATORS
(a) Install the heat insulator and torque the 4 bolts.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
(b) Install the heat insulator and torque the 6 bolts.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
4. INSTALL EXHAUST PIPE ASSEMBLY
(a) Connect the exhaust pipe assembly to the O±rings.
(b) 2JZ±GE Engine:
Install the 3 bolts, nuts and 2 gaskets to the exhaust man-
ifold. Torque the bolts.
Torque: 44 N´m (450 kgf´cm, 33 ft´lbf)
(c) 1UZ±FE Engine:
Install the 4 bolts, nuts and 2 gaskets to the exhaust man-
ifold. Torque the bolts.
Torque: 44 N´m (450 kgf´cm, 33 ft´lbf)
(d) Install the front floor center brace and torque the 2 bolts.
Torque: 7.4 N´m (75 kgf´cm, 65 in.´lbf)
(e) Connect the heated oxygen sensor.
Torque: 44 N´m (450 kgf´cm, 33 ft´lbf)
HINT:

Before installing the oxygen sensor, twist the sensor wire
counterclockwise 3 and 1/2 turns.

After installing oxygen sensor, check that the sensor wire
should not twist. If it is twisted, remove the oxygen sensor
and reinstall it.

SS0FQ±01
±
SS±19
175 Author: Date:
STARTING (2JZ±GE)
SERVICE DATA
StarterRated voltage and output power
No±load characteristics Current
rpm
Brush length STD
Minimum
Spring installed load STD
Minimum
Commutator
Diameter STD
Minimum
Undercut depth STD
Minimum
Circle runout Maximum
Magnetic switch
Contact plate for wear Maximum12 V 1.4 kW
90 A or less at 11.5 V
3,000 rpm or more
15.5 mm (0.610 in.)
10.0 mm (0.394 in.)
17.6 ± 23.5 N (1.8 ± 2.4 kgf, 3.9 ± 5.3 lbf)
11.8 N (1.2 kgf, 2.6 lbf)
30.0 mm (1.181 in.)
29.0 mm (1.412 in.)
0.6 mm (0.024 in.)
0.2 mm (0.008 in.)
0.05 mm (0.0020 in.)
0.9 mm (0.035 in.)