2000 LEXUS GS400 engine

A02726
Seal WasherSet BoltHold
Straight
Screw
Plug
A02722
Mesh Part
Frame Part
A11126
5 mm
Hexagon
Wrench
A02661
Front MarkSST
± ENGINE MECHANICAL (2JZ±GE)TIMING BELT
EM±25
1379 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(c) Holding the hexagon portion of the camshaft with a
wrench.
(d) Using a 10 mm hexagon wrench, and the set bolt.
Torque: 81 N´m (810 kgf´cm, 60 ft´lbf)
(e) Using a 14 mm hexagon wrench, install the straight screw
plug with the seal washer to the set bolt.
Torque: 15 N´m (150 kgf´cm, 11 ft´lbf)
(f) Align the dot mark on the camshaft timing pulley with the
timing mark of the No.4 timing belt cover.
(g) Remove the wrench.
8. CONNECT NO.1 OIL PIPE
(a) Install the union bolt to the oil control valve filter.
NOTICE:
In case of touching the filter, avoid holding the mesh part
and holding the frame part.
(b) Install the oil pipe with 2 new gasket and the union bolt to
the No.3 camshaft bearing cap.
Torque: 55 N´m (550 kgf´cm, 41 ft´lbf)
9. INSTALL CAMSHAFT TIMING OIL CONTROL VALVE
(See page SF±43)
10. INSTALL NO.1 CYLINDER HEAD COVER
(a) Install the cylinder head and gasket with the 6 bolts and
2 nuts.
Torque: 8.5 N´m (85 kgf´cm, 75 in.´lbf)
(b) Install the high±tension cords and clamps with the 2 bolts.
Torque: 8.0 N´m (80 kgf´cm, 71 in.´lbf)
(c) Using a 5 mm hexagon wrench, install the engine wire
protector with the bolt and nut.
11. INSTALL THROTTLE BODY AND INTAKE AIR
CONNECTOR ASSEMBLY (See page EM±5)
12. INSTALL ENGINE COVER
Install the engine cover with the 4 nuts.
13. INSTALL EXHAUST CAMSHAFT TIMING PULLEY
(a) Align the camshaft knock pin with the groove on the
pulley, and slide on the timing pulley.
(b) Slide the timing pulley on the camshaft, facing the front
mark forward.
(c) Using SST, install the pulley bolt.
SST 09960±10010 (09962±01000, 09963±01000)
Torque: 81 N´m (810 kgf´cm, 60 ft´lbf)

A02821
AlignSST
Turn
A02653
A02654
Z02446
1.5 mm
Hexagon
Wrench
P04459
EM±26
± ENGINE MECHANICAL (2JZ±GE)TIMING BELT
1380 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(d) Using SST, align the dot mark on the camshaft timing tim-
ing pulley with the timing mark of the No.4 timing belt cov-
er.
SST 09960±10010 (09962±01000, 09963±01000)
14. CONNECT TIMING BELT TO CAMSHAFT TIMING
PULLEYS
HINT:
When re±using timing belt:

Check that the matchmark on the timing belt matches the
end of the No.1 timing belt cover.
If the matchmark does not align, shift the meshing of the
timing belt and crankshaft timing pulley until they align.

Align the matchmarks of the timing belt and camshaft tim-
ing pulleys.
(a) Remove any oil or water on the camshaft timing pulley,
and keep it clean.
(b) Install the timing belt, checking the tension between the
crankshaft timing pulley and intake camshaft timing
pulley.
15. SET TIMING BELT TENSIONER
(a) Using a press, slowly press in the push rod using 981 ±
9,807 N (100 ± 1,000 kgf, 220 ± 2,205 lbf) of force.
(b) Align the holes of the push rod and housing, pass a 1.5
mm hexagon wrench through the holes to keep the push
rod retracted.
(c) Release the press.
(d) Install the dust boot onto the tensioner.

P10918
A02646
A02645
Turn
A02656
A02691
SST
± ENGINE MECHANICAL (2JZ±GE)TIMING BELT
EM±27
1381 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
16. INSTALL TIMING BELT TENSIONER
(a) Temporarily install the tensioner with the 2 bolts.
(b) Alternately tighten the 2 bolts.
Torque: 27 N´m (270 kgf´cm, 20 ft´lbf)
(c) Remove the 1.5 mm hexagon wrench from the tensioner
with pliers.
17. CHECK VALVE TIMING
(a) Slowly turn the crankshaft pulley 2 revolutions from TDC
to TDC.
NOTICE:
Always turn the crankshaft clockwise.
(b) Check that each pulley aligns with the timing marks as
shown in the illustration.
If the marks do not align, remove the timing belt and reinstall it.
18. TIGHTEN CRANKSHAFT PULLEY BOLT
Using SST, install the pulley bolt.
SST 09213±70010, 09330±00021
Torque: 330 N´m (3,300 kgf´cm, 243 ft´lbf)
19. INSTALL DRIVE BELT TENSIONER
Install the tensioner with the 3 bolts.
Torque: 21 N´m (210 kgf´cm, 15 ft´lbf)
NOTICE:
Be careful not to drop the bolts inside the timing belt cover.

A02803Plate Washer
A
B
A EM±28
± ENGINE MECHANICAL (2JZ±GE)TIMING BELT
1382 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
20. INSTALL NO.2 TIMING BELT COVER
(a) Install the gasket on the timing belt cover.
(b) Using a 5 mm hexagon wrench, install the timing belt cov-
er with the 3 bolts.
Torque: 8.0 N´m (80 kgf´cm, 71 in.´lbf)
21. INSTALL NO.3 TIMING BELT COVER
(a) Install the gasket on the timing belt cover.
(b) Using a 5 mm hexagon wrench, install the timing belt cov-
er with the 4 bolts.
Torque: 8.0 N´m (80 kgf´cm, 71 in.´lbf)
(c) Install the oil filler cap.
22. INSTALL PS PUMP AND FRONT BRACKET
(a) Temporarily install the vane pump to the bracket.
(b) Install the plate washer and front bracket with the 3 bolts.
Torque: 58 N´m (590 kgf´cm, 43 ft´lbf) for A bolts
52 N´m (530 kgf´cm, 38 ft´lbf) for B bolt
23. INSTALL DRIVE BELT (See page CH±1)
24. INSTALL RADIATOR ASSEMBLY (See page CO±23)
25. FILL ENGINE WITH COOLANT
26. START ENGINE CHECK FOR LEAKS
27. INSTALL ENGINE UNDER COVER
28. ROAD TEST
Check for abnormal noise, shock, slippage, correct shift points
and smooth operation.
29. RECHECK ENGINE COOLANT LEVEL

EM0D9±04
A09751
Air Cleaner,
MAF Meter
and Intake Air
Resonator
Assembly
PCV HoseExhaust Manifold
Case Clamp
PS Air
Hose
EVAP Hose
Air Cleaner InletMAF Meter
Connector
Heated Oxygen Sensor
Connector
 Clamp
40 (408, 32)
x 8
 Gasket
44 (440, 32)
44 (440, 32)
Pipe Support Bracket
Accelerator Cable
 Gasket
Upper Radiator
Hose
Front Exhaust Pipe
Drive Belt
Engine Under Cover
x 18
N´m (kgf´cm, ft´lbf) : Specified torque
 Non±reusable Part
Engine Cover
± ENGINE MECHANICAL (2JZ±GE)CYLINDER HEAD
EM±29
1383 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
CYLINDER HEAD
COMPONENTS

A11125
Throttle Body and Intake Air Connector AssemblyWater Bypass Hose
PCV Hose
EVAP Hose
 Gasket
Air Assist Hose
Vacuum
Hose
PS Air Hose
Air Intake Chamber
Engine Wire
Clamp
Drive Belt
TensionerClamp Bracket
Ground StrapFuel Pressure
Pulsation Damper Clamp Bracket
Water Bypass
Outlet
No.1 Water Bypass Pipe
No.3 Timing Belt Cover O±Ring
Oil Filler CapFuel Inlet Pipe
PS Air Hose
Hose
Clamp
Timing Belt
Tensioner
PS Pump Stay
Oil Dipstick
and Guide
for A/T
PS Vane Pump Water Bypass Hose
28 (280, 21)
Engine Wire
 O±Ring
No.2 Timing Belt Cover
GasketGasket
21 (210, 15)
32.5 (325, 24)
 Gasket
 Gasket
Engine Wire
Clamp
 O±Ring  O±RingOil Dipstick and
Guide for Engine
27 (270, 20)
58 (590, 43)39.2 (400, 29)N´m (kgf´cm, ft´lbf) : Specified torque
 Non±reusable Part
Dust BootEngine Wire
Clamp
No.2 Vacuum Pipe
Hose Clamp
Vacuum Control
Valve Set
EM±30
± ENGINE MECHANICAL (2JZ±GE)CYLINDER HEAD
1384 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)

A11124
Ignition Coils and
High±Tension Cord
Assembly
GasketNo.2 Cylinder Head Cover
Camshaft Timing Oil Control ValveExhaust Camshaft
No.1 Camshaft Bearing Cap
Gasket
No.1 Cylinder Head Cover
No.2 Camshaft Bearing Cap x 6
x 24 x 6
20 (200, 15)
20 (200, 15)
Intake Camshaft
 O±Ring
 GasketOil Control Valve Filter
x 14 No.3 Camshaft Bearing Cap
No.1 Oil Pipe
See page EM±52
1st 35 (350, 25)
2nd Turn 90°
3rd Turn 90°
Heater Hose
55 (550, 41)
Union Bolt
18 (180, 13)Spark Plug
 Oil Seal
No.4 Timing Belt Cover
Camshaft Timing Pulley
Cylinder Head Assembly
Intake Manifold Assembly
Manifold Stay
 Cylinder Head Gasket
 Gasket
x 7
81 (810, 60)
15 (150, 11)
8.0 (80, 71 in.´lbf)
N´m (kgf´cm, ft´lbf) : Specified torque
 Non±reusable partx 12
28 (280, 21)
Starter Wire
Straight
Screw Plug
Timing Belt
± ENGINE MECHANICAL (2JZ±GE)CYLINDER HEAD
EM±31
1385 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)

A02822
 Oil Seal
 Non±reusable part

Precoated part


 Gasket Gasket
ECT Sensor
 Valve Guide Bushing
Valve
Water Outlet with Water Bypass Hose
Camshaft Position SensorEngine Hanger Heater Union
Cylinder HeadSpring Seat Valve Spring Spring RetainerKeeper
Adjusting Shim
Valve Lifter
EM±32
± ENGINE MECHANICAL (2JZ±GE)CYLINDER HEAD
1386 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)