LEXUS GS400 2000 Service Repair Manual

IN04O±03
B02385
Front
JACK POSITION
PANTOGRAPH JACK POSITION
SUPPORT POSITIONFront
RearFront crossmember
Differential carrier
CAUTION : When jacking±up the front and rear, make sure the car is
not carrying any extra weight.
Safety stand and swing arm type lift
IN±8
± INTRODUCTIONREPAIR INSTRUCTIONS
8 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
VEHICLE LIFT AND SUPPORT LOCATIONS

B02135
Plate type lift
HINT :Attachment
AB
Left and right set position Place the vehicle over the center of the lift.
Front and rear set position
Align the attachment upper end (B) with the
Attachment dimensions
85 mm (3.35 in.)
70 mm (2.76 in.)
200 mm (7.87 in.) 100 mm (3.94 in.)C


Align the cushion gum ends of the plate
with the attachment lower ends (A, C).


When using attachments, place the one for
front side vertically and the one for rear side
horizontally to the vehicle.
rocker flange rear side notch.
± INTRODUCTIONREPAIR INSTRUCTIONS
IN±9
9 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)

B00319
Recommended Viscosity (SAE):
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE °F
°C±20
±29 0
±1820
±740
460
1680
27100
38 10W±30
5W±30 PREFERRED
LU05G±04
B01610
Oil PressureOil Pressure SwitchGauge
Union Bolt
P12478
Adhesive
± LUBRICATION (2JZ±GE)OIL AND FILTER
LU±1
1573 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
OIL AND FILTER
INSPECTION
1. CHECK OIL QUALITY
Check the oil for deterioration, entry of water, discoloring or thin-
ning.
If oil quality is visibly poor, replace the oil.
Oil grade:
API grade SJ, Energy±Conserving or ILSAC multi-
grade engine oil. SAE 5W±30 is the best choice for
your vehicle, for good fuel economy, and good start-
ing in cold weather.
2. CHECK ENGINE OIL LEVEL
After warming up the engine and then 5 minutes after the en-
gine stop, oil level should be between the low level and full level
marks of the dipstick.
If low, check for leakage and add oil up to the full level mark.
NOTICE:
Do not fill with engine oil above the full level mark.
3. REMOVE OIL PRESSURE SWITCH, AND INSTALL OIL
PRESSURE GAUGE
(a) Disconnect the oil pressure switch connector.
(b) Using SST, remove the oil pressure switch.
SST 09816±30010
(c) Install an oil pressure gauge.
4. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
5. CHECK OIL PRESSURE
Oil pressure:
At idle49 kPa (0.5 kgf/cm2, 7 psi) or more
At 3,000 rpm324 kPa (3.3 kgf/cm2, 47 psi) or more
6. REMOVE OIL PRESSURE GAUGE AND REINSTALL
OIL PRESSURE SWITCH
(a) Remove the oil pressure gauge.
(b) Tighten the union bolt.
Torque: 90 N´m (900 kgf´cm, 66 ft´lbf)
(c) Apply adhesive to 2 or 3 threads of the oil pressure switch.
Adhesive:
Part No.08833±00080, THREE BOND 1344,
LOCTITE 242 or equivalent
(d) Using SST, install the oil pressure switch.
SST 09816±30010
Torque: 15 N´m (150 kgf´cm, 11 ft´lbf)
(e) Connect the oil pressure switch connector.
7. START ENGINE AND CHECK FOR LEAKS

LU05M±01
LU±10
± LUBRICATION (2JZ±GE)OIL PUMP
1582 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REPLACEMENT
REPLACE FRONT CRANKSHAFT OIL SEAL (See page EM±88).

LU05N±01
P02186
Mark
P02443
S01373
Plug
New
Gasket
Relief
ValveCompression Spring
± LUBRICATION (2JZ±GE)OIL PUMP
LU±11
1583 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REASSEMBLY
1. INSTALL DRIVE AND DRIVEN ROTORS
(a) Place the drive and driven rotors into oil pump body with
the mark facing upward.
(b) Install the pump body cover with the 10 screws.
Torque: 10 N´m (105 kgf´cm, 8 ft´lbf)
2. INSTALL RELIEF VALVE
(a) Carefully mount the pump body in a soft jaw vise.
NOTICE:
Be careful not to damage the pump body.
(b) Insert the relief valve and compression spring into the oil
pump body hole.
(c) Install the plug with a new gasket.
Torque: 49 N´m (500 kgf´cm, 36 ft´lbf)

LU05O±03
P03946
New O±Ring
Z02385
Seal Width
2 ± 3 mmA
B
A
B
P03936
Long
Bolt LU±12
± LUBRICATION (2JZ±GE)OIL PUMP
1584 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
1. INSTALL OIL PUMP
(a) Place 2 new O±rings in position on the cylinder block.
(b) Remove any old packing (FIPG) material and be careful
not to drop any oil on the contact surfaces of the oil pump
and cylinder block.

Using a razor blade gasket scraper, remove all the
old packing (FIPG) material from the gasket
surfaces and sealing groove.

Thoroughly clean all components to remove all the
debris.

Using a non±residue solvent, clean both sealing
surfaces.
NOTICE:
Do not use a solvent which will affect the painted surfaces.
(c) Apply seal packing to the oil pump as shown in the illustra-
tion.
Seal packing: Part No.08826±00080 or equivalent

Install a nozzle that has been cut to a 2 ± 3 mm (0.08
± 0.12 in.) opening.
HINT:
Avoid applying an excessive amount to the surface. Be particu-
larly careful near oil passages.

Parts must be assembled within 5 minutes of ap-
plication. Otherwise the material must be removed
and reapplied.

Immediately remove nozzle from the tube and rein-
stall cap.
(d) Install the oil pump with the 9 bolts.
Torque: 21 N´m (210 kgf´cm, 15 ft´lbf)

P03949
New O±Ring
Z17749
A
ABC
C
Seal Width
4 ± 5 mm B
± LUBRICATION (2JZ±GE)OIL PUMP
LU±13
1585 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
2. INSTALL NO.1 OIL PAN
(a) Place a new O±ring in the position on the cylinder block.
(b) Remove any old packing (FIPG) material and be careful
not to drop any oil on the contact surfaces of the No.1 oil
pan and cylinder block.

Using a razor blade and gasket scraper, remove all
the old packing (FIPG) material from the gasket sur-
faces and sealing groove.

Thoroughly clean all components to remove all the
debris.

Using a non±residue solvent, clean both sealing
surfaces.
NOTICE:
Do not use a solvent which will affect the painted surfaces.
(c) Apply seal packing to the No.1 oil pan as shown in the il-
lustration.
Seal packing: Part No.08826±00080 or equivalent

Install a nozzle that has been cut to a 4 ± 5 mm (0.16
± 0.20 in.) opening.
HINT:
Avoid applying an excessive amount to the surface.

Parts must be assembled within 5 minutes of ap-
plication. Otherwise the material must be removed
and reapplied.

Immediately remove nozzle from the tube and rein-
stall cap.
(d) Install the No.1 oil pan with the 22 bolts.
Torque:
12 mm head 21 N´m (210 kgf´cm, 15 ft´lbf)
14 mm head 40 N´m (400 kgf´cm, 30 ft´lbf)
3. INSTALL OIL PAN BAFFLE PLATE
Torque: 9.0 N´m (90 kgf´cm, 80 in.´lbf)
4. INSTALL OIL STRAINER
Install a new gasket and the oil strainer with the bolt and 2 nuts.
Torque: 9.0 N´m (90 kgf´cm, 80 in.´lbf)
5. INSTALL NO.2 OIL PAN
(a) Remove any old packing (FIPG) material and be careful
not to drop any oil on the contact surfaces of the No.1 and
No.2 oil pans.

Using a razor blade and gasket scraper, remove all
the old packing (FIPG) material from the gasket sur-
faces and sealing groove.

Thoroughly clean all components to remove all the
debris.

Z17748
A
AB
BSeal Width
4 ± 5 mm
P02404
New Gasket
A02760
New O±Ring
Push
LU±14
± LUBRICATION (2JZ±GE)OIL PUMP
1586 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)

Using a non±residue solvent, clean both sealing
surfaces.
NOTICE:
Do not use a solvent which will affect the painted surfaces.
(b) Apply seal packing to the No.2 oil pan as shown in the il-
lustration.
Seal packing: Part No.08826±00080 or equivalent

Install a nozzle that has been cut to a 4 ± 5 mm (0.16
± 0.20 in.) opening.
HINT:
Avoid applying an excessive amount to the surface.

Parts must be assembled within 5 minutes of application.
Otherwise the material must be removed and reapplied.

Immediately remove nozzle from the tube and reinstall
cap.
(c) Install the No.2 oil pan with the 16 bolts and 2 nuts.
Torque: 9.0 N´m (90 kgf´cm, 80 in.´lbf)
6. INSTALL OIL LEVEL SENSOR
(a) Install a new gasket to the level sensor.
(b) Install the level sensor with the 4 bolts.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
(c) Connect the level sensor connector.
7. INSTALL OIL DIPSTICK GUIDE AND DIPSTICK
(a) Install a new O±ring on the dipstick guide.
(b) Apply soapy water on the O±ring.
(c) Push in the dipstick guide into the guide hole of the No.1
oil pan.
(d) Install the dipstick guide with the bolt.
(e) Install the dipstick.
(f) Connect the engine wire clamp to the dipstick guide.
8. INSTALL CRANKSHAFT TIMING PULLEY, IDLER
PULLEY AND TIMING BELT (See page EM±23)

± LUBRICATION (2JZ±GE)OIL PUMP
LU±15
1587 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
9. INSTALL CRANKSHAFT POSITION SENSOR
Torque: 9.0 N´m (90 kgf´cm, 80 in.´lbf)
10. REMOVE ENGINE STAND FROM ENGINE
11. ASSEMBLY ENGINE AND TRANSMISSION
(See page EM±68)
12. INSTALL ENGINE WITH TRANSMISSION
(See page EM±68)

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)