timing LEXUS GS400 2000 Service Workshop Manual

PP0TF±01
PP±6
± PREPARATIONENGINE MECHANICAL (2JZ±GE)
58 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
EQUIPMENT
Abrasive compoundValve
Bolt (Part No. 90105 ± 10345)For suspending engine
Bolt (Part No. 90119 ± 18001)Crankshaft pulley, Crankshaft timing pulley
Caliper gauge
CO/HC meter
Compression gauge
Connecting rod aligner
Cylinder gauge
Dial indicator
Dye penetrant
Engine tune±up tester
Heater
Micrometer
Mirror
Magnetic finger
No.1 engine hanger (Part No. 12281 ± 46050)For suspending engine
OBDII scan tool
Piston ring compressor
Piston ring expander
Plastigage
Precision straight edge
Press
Ridge reamerCylinder
Soft brash
Solvent
Spring testerValve spring
Steel squareValve spring
Thermometer
Torque wrench
Valve seat cutter
Vernier calipers
V±block
Wire brush

SS0FK±01
±
SS±11
167 Author: Date:
SFI (2JZ±GE)
SERVICE DATA
Fuel pressure
regulatorFuel pressure301 ± 347 kPa (3.1 ± 3.5 kgf/cm2, 44 ± 50 psi)
Fuel pumpResistance at 20°C (68°F)0.2 ± 3.0 W
InjectorResistance at 20°C (68°F)
Injection volume
Difference between each cylinder
Fuel leakage13.4 ± 14.2 W
60 ± 73 cm3 (3.7 ± 4.5 cu in.) per 15 sec.
13 cm3 (0.8 cu in.) or less
1 drop or less per 12 minutes
MAF meterResistance (THA ± E2) at ±20°C (±4°F)
at 20°C (68°F)
at 60°C (140°F)13.6 ± 18.4kW
2.21 ± 2.69 kW
0.493 ± 0.667 kW
Throttle bodyThrottle body fully closed angle3.5°
Throttle control
motorMotor (M+ ± M±) at 20°C (68°F)
Clutch (CL+ ± CL±) at 20°C (68°F)0.3 ± 100 W
4.2 ± 5.2 W
Throttle position
sensorResistance (VC ± E2) at 20°C (68°F)
Throttle valve opening percentage STD1.2 ± 3.2 kW
15.6 ± 1.2 %
Accelerator pedal
position sensorResistance (VC ± E2) at 20°C (68°F)
Accelerator pedal position voltage STD1.2 ± 3.2 kW
0.3 ± 0.9 V
Camshaft timing
oil control valveResistance at 20°C (68°F)5.5 ± 12 W
VSV for EVAPResistance at 20°C (68°F)33 ± 39 W
VSV for acoustic
control induction
system (ACIS)Resistance at 20°C (68°F)38.5 ± 44.5 W
VSV for vapor
pressure sensorResistance at 20°C (68°F)33 ± 39 W
ECT sensorResistance at ±20°C (±4°F)
0°C (32°F)
20°C (68°F)
40°C (104°F)
60°C (140°F)
80°C (176°F)10 ± 20 kW
4 ± 7 kW
2 ± 3 kW
0.9 ± 1.3 kW
0.4 ± 0.7 kW
0.2 ± 0.4 kW
Vapor pressure
sensorPower sorce voltage4.5 ± 5.5 V
Heated oxygen
sensorHeater coil resistance at 20°C (68°F)11 ± 16 W
Fuel cut rpmFuel return rpm1,000 rpm

SS0FL±05
SS±12
±
168 Author: Date:
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Fuel line for union bolt
for flare nut (for using SST)29
38 (30)300
387 (310)22
28 (22)
Fuel tank vent tube set plate x Fuel tank3.53631 in.´lbf
Fuel inlet hose x Body9.09080 in.´lbf
Delivery pipe x Intake manifold2121015
Fuel pressure pulsation damper x Fuel pipe support32.532524
Fuel inlet pipe x Intake manifold9.09080 in.´lbf
No.2 vacuum pipe x Intake manifold2121015
Fuel sender gauge x Fuel tank1.51513 in.´lbf
Fuel tank band x Body3940031
MAF meter x Air cleaner10.71098
Throttle body bracket x Throttle body2121015
Throttle body bracket x Cylinder head2121015
Throttle position sensor x Throttle body1.717.515 in.´lbf
Throttle control motor x Throttle body3.737.533 in.´lbf
Throttle control motor cover x Throttle body1.717.515 in.´lbf
Accelerator pedal position sensor x Throttle body3.737.533 in.´lbf
Camshaft timing oil control valve x No.3 camshaft bearing cap8.08071 in.´lbf
No.3 timing belt cover x Cylinder head cover8.08071 in.´lbf
Intake air connector x Air intake chamber2828021
Air intake chamber x Intake manifold2828021
Vacuum control valve set x Intake manifold2121015
ECT sensor x Cylinder head19.620014
Knock sensor x Cylinder block4445033
PS pump rear stay x Manifold stay39.240029
PS pump rear stay x PS pump bracket39.240029
Heated oxygen sensor x Exhaust manifold4545033
Heated oxygen sensor x Front exhaust pipe4545033

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.)

SS0FI±01
SS±8
± SERVICE SPECIFICATIONSENGINE MECHANICAL (2JZ±GE)
164 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
No.3 timing belt cover x Cylinder head8.08071 in.´lbf
Intake air connector x Air intake chamber2828021
Throttle body bracket x Cylinder head2121015
Timing belt plate x Oil pump8.08071 in.´lbf
Idler pulley x Oil pump3535026
No.1 timing belt cover x Oil pump8.08071 in.´lbf
Camshaft timing pulley x Camshaft8181060
Straight screw plug x Camshaft timing pulley1515011
No.1 oil pipe x No.3 camshaft bearing cap5555041
Cylinder head cover x Cylinder head8.58575 in.´lbf
High±tension cord x Cylinder head cover8.08071 in.´lbf
Timing belt tensioner x Oil pump2727020
Crankshaft pulley x Crankshaft3303,300243
Drive belt tensioner x Cylinder head2121015
No.2 timing belt cover x Cylinder head8.08071 in.´lbf
PS pump front bracket x PS vane pump5859043
PS pump front bracket x Cylinder block5253038
Camshaft bearing cap x Cylinder head2020014
ECT sensor x Cylinder head19.620014
Engine hanger x Cylinder head4040030
Water outlet x Cylinder head2828021
Cylinder head x Cylinder head 1st
2nd
3rd35
Turn 90°
Turn 90°350
Turn 90°
Turn 90°26
Turn 90°
Turn 90°
No.3 camshaft bearing cap x Cylinder head Hexagon bolt5.05044 in.´lbf
No.4 timing belt cover x Cylinder head8.08071 in.´lbf
Cylinder head cover x Cylinder head8.58575 in.´lbf
Intake manifold x Cylinder head2828021
Manifold stay x Intake manifold4040030
Manifold stay x Cylinder block4040030
Vacuum control valve set x Intake manifold2121015
Exhaust manifold x Cylinder head4040830
Front exhaust pipe x Exhaust manifold4444032
Pipe support bracket x Transmission4444032
PS vane pump x Cylinder block57.959043
PS vane pump x A/C compressor57.959043
PS pump rear stay x PS pump bracket39.240029
PS pump rear stay x Manifold stay39.240030
Engine hanger x Cylinder head4040030
Rear support member x Body25.526019
Drive plate x Crankshaft8385061
Transmission x Cylinder block7273053
Starter x Transmission3738027
No.1 oil pan x Transmission3738027

SF0N1±03
± SFI (2JZ±GE)SFI SYSTEM
SF±1
1467 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
SFI SYSTEM
PRECAUTION
1. BEFORE WORKING ON FUEL SYSTEM, DISCON-
NECT NEGATIVE (±) TERMINAL CABLE FROM BAT-
TERY
HINT:
Any diagnostic trouble code retained by the ECM will be erased
when the battery negative (±) terminal cable is removed from
the battery.
Therefore, if necessary, read the diagnostic trouble code(s) be-
fore removing the negative (±) terminal cable from the battery.
2. DO NOT SMOKE OR WORK NEAR AN OPEN FLAME
WHEN WORKING ON FUEL SYSTEM
3. KEEP GASOLINE AWAY FROM RUBBER OR LEATH-
ER PARTS
4. MAINTENANCE PRECAUTIONS
(a) Precaution when the connecting gauge.
Use battery as the power source for the timing light, etc.
(b) In the event of engine misfire, these precautions should
be taken.
(1) Check proper connection of battery terminals, etc.
(2) Handle high±tension cords carefully.
(3) After repair work, check that the ignition coil termi-
nals and all other ignition system lines are recon-
nected securely.
(4) When cleaning the engine compartment, be espe-
cially careful to protect the electrical system from
water.
(c) Precautions when the handling heated oxygen sensors.
(1) Do not allow oxygen sensor to drop or hit against an
object.
(2) Do not allow the sensor to come into contact with
water.
5. IF VEHICLE IS EQUIPPED WITH MOBILE RADIO SYS-
TEM (HAM, CB, ETC.)
If the vehicle is equipped with a mobile communication system,
refer to the precaution in the IN section.
6. AIR INDUCTION SYSTEM
(a) Separation of the engine oil dipstick, oil filler cap, PCV
hose, etc. may cause the engine to run out of tune.
(b) Disconnection, looseness or cracks in the parts of the air
induction system between the throttle body and cylinder
head will cause air suction and cause the engine to run
out of tune.

A02640
Ohmmeter
SF0NR±03
± SFI (2JZ±GE)CAMSHAFT TIMING OIL CONTROL VALVE
SF±41
1507 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
CAMSHAFT TIMING OIL CONTROL
VA LV E
ON±VEHICLE INSPECTION
1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE
RESISTANCE
(a) Disconnect the oil control valve connector.
(b) Using an ohmmeter, measure the resistance between the
terminals.
Resistance: 5.5 ± 12 W at 20°C (68°F)
If the resistance is not as specified, replace the valve.
(c) Reconnect the oil control valve connector.
2. INSPECT VVT±i OPERATION
(a) Allow the engine to warm up to normal operating tempera-
ture.
(b) Check that the engine stalls or becomes in rough±idling
state when the battery positive voltage is applied to the oil
control valve with the engine idling.
If operation is not as specified, check the oil control valve (see
page SF±43), VVT±i pulley, intake camshaft, wiring and ECM.

SF0NQ±01
B01613
Oil Filler Cap
No.3 Timing Belt Cover
Camshaft Timing Oil
Control Valve Connector
O±Ring
Gasket
Camshaft Timing
Oil Control Valve

Non±reusable part SF±42
± SFI (2JZ±GE)CAMSHAFT TIMING OIL CONTROL VALVE
1508 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
COMPONENTS

A02639
SF0NS±01
B01805
Valve
21
Battery positive voltage is applied
Battery positive voltage is cut offValve moves in
Valve moves indirection
direction
± SFI (2JZ±GE)CAMSHAFT TIMING OIL CONTROL VALVE
SF±43
1509 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSPECTION
1. REMOVE NO.3 TIMING BELT COVER
2. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE
(a) Disconnect the oil control valve connector.
(b) Remove the bolt, oil control valve and O±ring.
3. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE
OPERATION
Connect positive (+) lead from the battery to terminal 1 and neg-
ative (±) lead to terminal 2, and check the movement of the
valve.
If operation is not as specified, replace the valve.
4. REINSTALL CAMSHAFT TIMING OIL CONTROL
VA LV E
(a) Install a new O±ring to the oil control valve.
(b) Install the oil control valve with the bolt.
Torque: 8.0 N´m (80 kgf´cm, 71 in.´lbf)
(c) Connect the oil control valve connector.
5. REINSTALL NO.3 TIMING BELT COVER
Torque: 8.0 N´m (80 kgf´cm, 71 in.´lbf)