Lexus LS400 (2000 year). Manual - part 100

EM09Z–02

A02106

RH Engine Mounting Bracket
(with Insulator)

Water Seal Plate

Oil Pump



 Crankshaft

Front Oil Seal

Crankshaft
Position Sensor
Connector

No.1 Oil Pan



 Gasket

Drain Plug



 Non–reusable part

 Precoated part

x 12

Engine Wire

Oil
Strainer

LH Engine
Coolant Drain
Union

LH Engine Mounting
Bracket (with Insulator)

Starter
Cable

Knock Sensor 2
Connector

Knock Sensor 1

Knock Sensor 2

RH Engine Coolant
Drain Plug

Starter

Water Bypass Pipe



 O–Ring

No.2 Oil Pan

Oil Pan Baffle Plate

x 12

Water Pump



 Gasket



 O–Ring

Engine Wire

Engine Wire
Cover

Knock Sensor 1
Connector

Starter
Connector

18 (185, 13)

15.5 (160, 11)

30.5 (310, 22)

N·m (kgf·cm, ft·lbf)

: Specified Torque

EM–88

–

ENGINE MECHANICAL

CYLINDER BLOCK

1270

CYLINDER BLOCK

COMPONENTS

A01898

No.1 Piston Ring

No.2 Piston Ring

Oil Ring

Side Rail
Expander

Side Rail

Connecting Rod

Connecting Rod Bearing

Connecting Rod Cap

Cylinder Block



 Snap Ring

Piston Pin



Crankshaft

Rear Oil Seal



 O–Ring

Rear Oil seal
Retainer

Upper Main Bearing



 Snap Ring

Piston

Upper Crankshaft Thrust Washer

Lower Main Bearing

Lower Crankshaft
Thrust Washer



 Seal Washer

Main Bearing Cap



 Non–reusable part



 Seal Washer

1st 25 (250, 18)
2nd Turn 90

°

1st 27 (275, 20)
2nd Turn 90

°

N·m (kgf·cm, ft·lbf)

: Specified Torque

49 (500, 36)

–

ENGINE MECHANICAL

CYLINDER BLOCK

EM–89

1271

A01892

EM09J–02

Q06528

LEXUS Hand–Held Tester

DLC3

A03219

Yellow
Wire

A02001

SST

E1

TC

A02002

–

ENGINE MECHANICAL

IGNITION TIMING

EM–9

1191

IGNITION TIMING

INSPECTION

1.

REMOVE BATTERY CLAMP COVER

2.

REMOVE AIR CLEANER INLET

3.

REMOVE V–BANK COVER

Remove the 2 cap nuts, bolt and V–bank cover.
4.

WARM UP ENGINE

Allow the engine to warm up to normal operating temperature.

5.

CONNECT LEXUS HAND–HELD TESTER OR OBD II
SCAN TOOL

(a)

Connect the hand–held tester or OBD II scan tool to the
DLC3.

(b)

Please refer to the hand–held tester or OBD II scan tool
operator ’s manual for further details.

6.

CONNECT TIMING LIGHT TO ENGINE

Connect the tester probe of a timing light to the yellow lead wire
of the ignition coil connector for No.1 cylinder.
7.

CHECK IDLE SPEED

(a)

Race the engine speed at 2,500 rpm for approx. 90 se-
conds.

(b)

Check the idle speed.
Idle speed: 750 

±

 50 rpm

8.

INSPECT IGNITION TIMING

(a)

Using SST, connect terminals TC and E1 of the DLC1.
SST

09843–18020

(b)

Using a timing light, check the ignition timing.
Ignition timing: 8 – 12

°

 BTDC @ idle

(Transmission in neutral position)

(c)

Remove the SST from the DLC1.
SST

09843–18020

9.

DISCONNECT TIMING LIGHT FROM ENGINE

10.

DISCONNECT LEXUS HAND–HELD TESTER OR OBD
II SCAN TOOL

11.

REINSTALL V–BANK COVER

12.

REINSTALL AIR CLEANER INLET

EM–10

–

ENGINE MECHANICAL

IGNITION TIMING

1192

13.

REINSTALL BATTERY CLAMP COVER