Lexus RX300 (MCU15). Manual — part 432

EM0B2–03

EM–12

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ENGINE MECHANICAL

IDLE SPEED

LEXUS RX300 (RM785E)

IDLE SPEED

INSPECTION

1.

INITIAL CONDITIONS

(a)

Engine at normal operating temperature

(b)

Air cleaner installed

(c)

All pipes and hoses of air induction system connected

(d)

All accessories switched OFF

(e)

All vacuum lines properly connected

(f)

EFI system wiring connectors fully plugged

(g)

Ignition timing check correctly

(h)

Transmission in neutral position

2.

CONNECT HAND–HELD TESTER (See page EM–10)

3.

INSPECT IDLE SPEED

(a)

Race the engine speed at 2,500 rpm for approx. 90 seconds.

(b)

Check the idle speed.
Idle speed: 700 ± 50 rpm

If the idle speed is not as specified, check the ISC valve and air intake system.
4.

DISCONNECT HAND–HELD TESTER

EM0B3–04

A14983

: Specified torque

LH Wiper Arm and Blade Assembly

Hood to Cowl Top Seal

Wiper Motor with Wiper Link

Outer Cowl Top Panel

x 6

Wiper Motor Connector

RH Cowl Top
Ventilator Louver

LH Cowl Top Ventilator Louver

RH Wiper Arm and Blade Assembly

24 (245, 18)

N·m (kgf·cm, ft·lbf)

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ENGINE MECHANICAL

TIMING BELT

EM–13

LEXUS RX300 (RM785E)

TIMING BELT

COMPONENTS

A14984

RH Fender Apron Seal

Alternator Drive Belt

Engine Moving
Control Rod

No. 2 RH Engine

Mounting Bracket

Ground Strap

PS Pump Drive Belt

64 (650, 47)

32 (320, 23)

N·m (kgf·cm, ft·lbf)

: Specified torque

Front Upper
Suspension Brace

80 (810, 59)

64 (650, 47)

80 (810, 59)

Master Cylinder Reservoir

Cruise Control Actuator

Cruise Control Actuator
Connector

EM–14

–

ENGINE MECHANICAL

TIMING BELT

LEXUS RX300 (RM785E)

A14985

No. 2 Timing Belt Cover

Timing Belt

Timing Belt Guide

No. 2 Alternator
Bracket

RH Engine Mounting Bracket

Crankshaft
Pulley

Engine Wire
Protector

RH Camshaft Timing Pulley

No. 2 Idler Pulley

Crankshaft
Timing Pulley

Dust Boot

Timing Belt Plate

Plate Washer

L

215 (2,200, 159)

43 (440, 32)

27 (280, 20)

Timing Belt Tensioner

N·m (kgf·cm, ft·lbf) : Specified torque

z Non–reusable part

28 (290, 21)

No. 1 Timing Belt Cover

125 (1,300, 35)
*88 (900, 65)

LH Camshaft
Timing Pulley

No. 1 Idler Pulley

34 (350, 25)

L Precoated part

* For use with SST

125 (1,300, 94)

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ENGINE MECHANICAL

TIMING BELT

EM–15

LEXUS RX300 (RM785E)