LEXUS GS400 2000 Service Repair Manual

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.

PR032±01
Q07034
SA1272
Q07035
SST
PR0230
SST PR±12
± PROPELLER SHAFTJOINT ANGLE
1999 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
JOINT ANGLE
INSPECTION
NOTICE:
When performing operations which involve the removal
and installation of the propeller shaft, always check the
joint angle. Make adjustments if necessary.
1. STABILIZE PROPELLER SHAFT AND DIFFERENTIAL
(a) Turn the propeller shaft several times by hand to stabilize
the center support bearing and flexible couplings.
(b) Using a jack, raise and lower the differential to stabilize
the differential mounting cushion.
2. CHECK NO.2 AND NO.3 JOINT ANGLE
(a) Using SST, measure the installation angle of the inter-
mediate shaft and propeller shaft.
SST 09370±50010
HINT:
The SST should be directly underneath the tube.
(b) Using SST, measure the installation angle of the differen-
tial.
SST 09370±50010
HINT:
Measure the installation angle by placing the SST in the posi-
tion, as shown in the illustration.

F02415
A
B
C No.2 Joint
A±B = ±1°01' ± 37'No.3 Joint
B±C = 1°14' ± 42'
F02413
± PROPELLER SHAFTJOINT ANGLE
PR±13
2000 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(c) Calculate the No.2 joint angle.
No.2 joint angle:
A±B= ±1°01' ± 37'
A: Intermediate shaft installation angle
B: Propeller shaft installation angle
(d) Calculate the No.3 joint angle.
No.3 joint angle:
B±C= 1°14' ± 42'
B: Propeller shaft installation angle
C: Differential installation angle
If the measured angle is not within the specification, adjust it
with the center support bearing adjusting washer.
3. ADJUST NO.2 JOINT ANGLE
Select the proper shaft center support bearing adjusting wash-
er for adjustment.
Thickness mm (in.)Thickness mm (in.)
1.0 (0.039)3.6 (0.142)
2.0 (0.079)4.0 (0.157)
2.5 (0.098)4.5 (0.177)
3.0 (0.118)±
HINT:

Left and right washers should be the same thickness.

2 washers should not be assembled together.

PR02X±01
F02410
Front Floor Center Brace Heat InsulatorAdjusting Washer
N´m (kgf´cm, ft´lbf) : Specified torque

Non±reusable partFront Floor Center Brace
7.4 (75, 65 in.´lbf)
44 (450, 33)
44 (450, 33)
Heated Oxygen Sensor
O±Ring
Exhaust Pipe Assembly
44 (450, 33)







Gasket

Gasket
44 (450, 33)
44 (450, 33)
7.4 (75, 65 in.´lbf)
O±Ring
2JZ±GE Engine:
1UZ±FE Engine:


Gasket


44 (450, 33)
Exhaust Pipe Assembly
5.4 (55, 48 in.´lbf)
Heat Insulator
79 (805, 58)
79 (805, 58)
37 (375, 27)
Propeller Shaft Assembly


5.4 (55, 48 in.´lbf)
Heated Oxygen Sensor Heated Oxygen Sensor
PR±2
± PROPELLER SHAFTPROPELLER SHAFT ASSEMBLY
1989 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
PROPELLER SHAFT ASSEMBLY
COMPONENTS

F02411
Intermediate ShaftAdjusting Nut
Dust Boot
Center Support Bearing

No.1 Dust
DeflectorPropeller Shaft

Snap Ring

No.2 Dust Deflector
N´m (kgf´cm, ft´lbf) : Specified torque

Non±reusable part
* For use without SST
50 (515, 37)
* 69 (700, 51)
± PROPELLER SHAFTPROPELLER SHAFT ASSEMBLY
PR±3
1990 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)

PR02Y±01
Z10210
SST
F02412
Matchmarks
F02408
Matchmarks
PR±4
± PROPELLER SHAFTPROPELLER SHAFT ASSEMBLY
1991 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
1. REMOVE EXHAUST PIPE ASSEMBLY
(a) Disconnect the heated oxygen sensor.
(b) Remove the 2 bolts and front floor center brace.
(c) Disconnect the exhaust pipe assembly from the O±rings.
(d) 2JZ±GE Engine:
Remove the 3 bolts, nuts and 2 gaskets from the exhaust
manifold.
(e) 1UZ±FE Engine:
Remove the 4 bolts, nuts and 2 gaskets from the exhaust
manifold.
(f) Remove the exhaust pipe assembly.
2. REMOVE 2 HEAT INSULATORS
(a) Remove the 6 bolts and heat insulator.
(b) Remove the 4 bolts and heat insulator.
3. REMOVE PROPELLER SHAFT
(a) Using SST, loosen the adjusting nut until it can be turned
by hand.
SST 09922±10010
HINT:
Use 2 of the same type of SST.
(b) Place matchmarks on the transmission companion flange
and flexible coupling.
(c) Remove the 3 bolts installed from the transmission side.
NOTICE:
The bolts installed from the propeller shaft side should not
be removed.
(d) Place matchmarks on the differential companion flange
and flexible coupling.
(e) Remove the 3 bolts installed from the differential side.
NOTICE:
The bolts installed from the propeller shaft side should not
be removed.

Q07039
F02413
F02414
± PROPELLER SHAFTPROPELLER SHAFT ASSEMBLY
PR±5
1992 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(f) Separate the flexible couplings from the transmission and
differential.
HINT:
If the flexible coupling cannot be easily separated by hand, in-
sert a screwdriver into the bolt hole of the flexible coupling as
shown in the illustration, then pry the coupling out.
NOTICE:
Do not bring the screwdriver blade in direct contact with
the flexible coupling's rubber portion.
(g) Remove the 2 center support bearing set bolts and ad-
justing washers.
HINT:
Some vehicles are not equipped with an adjusting washer.
NOTICE:
When removing the set bolts, support the center support
bearing by hand so that the transmission and intermediate
shaft, and propeller shaft and differential, remain in a
straight line.
Maximum joint angle: 5°
(h) Push the rear propeller shaft straight forward to compress
the propeller shaft and pull out the propeller shaft from the
centering pin of the differential.
NOTICE:
Press the propeller shaft straight ahead to keep the trans-
mission and intermediate shaft aligned straight.
(i) Pull the propeller shaft out toward the vehicle's rear.
NOTICE:
The intermediate shaft and propeller shaft should not be
separated.

PR02Z±01
Q06934
Q06898Centering Bushing PR±6
± PROPELLER SHAFTPROPELLER SHAFT ASSEMBLY
1993 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSPECTION
1. INSPECT CENTER SUPPORT BEARING
(a) Check for cracks in or damage to the cushion.
(b) Check if the bearing turns smoothly.
If the center support bearing is damaged, worn or does not turn
smoothly, replace it.
2. INSPECT FLEXIBLE COUPLINGS
Check for cracks in or damage to the front and rear flexible cou-
plings.
If the flexible coupling is damaged, replace the propeller shaft
assembly.
3. INSPECT FLEXIBLE COUPLING CENTERING BUSH-
ING
Check for damage to the bushing.
If the bushing is damaged, replace the propeller shaft assem-
bly.

PR030±01
Q06935
Matchmarks
Q06936
SST
Q06937
PR0253
± PROPELLER SHAFTPROPELLER SHAFT ASSEMBLY
PR±7
1994 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REPLACEMENT
1. SEPARATE INTERMEDIATE SHAFT AND PROPEL-
LER SHAFT
(a) Place matchmarks on the intermediate shaft and propel-
ler shaft.
(b) Separate the intermediate shaft and propeller shaft.
(c) Remove the dust boot from the propeller shaft.
HINT:
If the dust boot is reused, remove it after wrapping vinyl tape
around the spline, so it will not be damaged.
2. REMOVE CENTER SUPPORT BEARING
(a) Using a snap ring expander, remove the snap ring.
(b) Using SST and a press, remove the center support bear-
ing and dust deflector.
SST 09950±00020
3. INSPECT INTERMEDIATE SHAFT AND PROPELLER
SHAFT RUNOUT
Using a dial indicator, check the runout of the shafts.
Maximum runout: 0.8 mm (0.031 in.)
If the runout exceeds the maximum, replace the propeller shaft
assembly.
4. INSPECT SPIDER BEARING
(a) Check if the spider bearing rotates smoothly.
(b) Check if there is any play in the spider bearing.
If necessary, replace the propeller shaft.

Q06938
SST
Q06939
SST
Q06940
SST
Q06941Vinyl Tape
Q06935
Matchmarks PR±8
± PROPELLER SHAFTPROPELLER SHAFT ASSEMBLY
1995 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
5. INSTALL CENTER SUPPORT BEARING
NOTICE:
Be careful not to grip the propeller shaft tube too tightly in
a vise as this will cause deformation.
(a) Using SST and a press, install the center support bearing.
SST 09330±50010
(b) Using SST and a press, insert a new dust deflector until
it almost touches the rubber of the center support bearing.
SST 09608±00071, 09608±06041
(c) Using SST and a press, install a new dust deflector.
SST 09330±50010
(d) Using a snap ring expander, install a new snap ring.
6. ASSEMBLE INTERMEDIATE SHAFT AND PROPEL-
LER SHAFT
(a) Install the dust boot.
NOTICE:
Assemble after wrapping vinyl tape around the spline so it
will not damage the boot.
(b) Apply grease to the spline.
Grease:
Molybdenum disulphide lithium base, NLGI No.2
(c) Align the matchmarks and assemble the intermediate
shaft and propeller shaft.
(d) Cover the adjusting nut with the dust boot.