2000 TOYOTA CAMRY Service Repair Manual

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Page 1065 of 4770

TOYOTA CAMRY 2000 Service Repair Manual INTRODUCTION
INTRODUCTION Ð OUTLINE OF NEW FEATURES3
OUTLINE OF NEW FEATURES
An engine that is based on the 5S-FE engine, yet uses natural gas, has been developed in order to reduce
exhaust emissions

Page 1066 of 4770

TOYOTA CAMRY 2000 Service Repair Manual IN
INTRODUCTION Ð OUTLINE OF NEW FEATURES 4
11. Audio
3-way speakers are used for the rear speaker.
167CN01

Page 1067 of 4770

TOYOTA CAMRY 2000 Service Repair Manual INTRODUCTION Ð MODEL CODE AND MODEL LINE-UP 4
MODEL CODE
SXV23 L ± A E P N C A
1 2 34567 8
1
BASIC MODEL CODE
1SXV23: With 5S-FNE Engine
2
STEERING WHEEL POSITION
2L: Left-Hand Drive
3
MODEL NAME
3A

Page 1068 of 4770

TOYOTA CAMRY 2000 Service Repair Manual NF
2. New Features

Page 1069 of 4770

TOYOTA CAMRY 2000 Service Repair Manual NEW FEATURES Ð 5S-FNE ENGINE
NEW FEATURES
6
5S-FNE ENGINE
DESCRIPTION
The 5S-FNE engine is a new engine that uses CNG (Compressed Natural Gas) as fuel, which has been
developed based on the 5S-FE ga

NEW FEATURES Ð 5S-FNE ENGINE
NEW FEATURES
6
5S-FNE ENGINE
DESCRIPTION
The 5S-FNE engine is a new engine that uses CNG (Compressed Natural Gas) as fuel, which has been
developed based on the 5S-FE gasoline engine.
The main component of natural gas is methane (CH
4), which has fewer carbons (C) than gasoline (mean
molecular formula: C
7.5H13.4). Therefore, the amount of CO2 discharged by this engine is approximately
70% that of the gasoline engine. Furthermore, this engine achieves low-emission operation by precisely
controlled air-fuel ratio and using special catalysts for the CNG application.
However, because the fuel is in the gaseous form, its volumetric efficiency is low, causing lower power
output if this fuel is used in the base engine.
Therefore, the 5S-FNE engine has adopted the following features: a high compression ratio, the intake
valves with early closed timing, the intake and exhaust valves with increased lift, a low back pressure muffler
made possible by the 2-way exhaust system, injectors for gaseous fuel, and a catalytic converter designed
exclusively for CNG application. At the same time, precision air-fuel ratio control is effected through the
use of the air-fuel ratio sensor* and the heater oxygen sensor, thus achieving the level of performance that
is equivalent to the base engine. Moreover, this engine realizes extremely low emissions and restoring engine
torque.
*: Already adopted on the California specification 5S-FE engine.
Specifications
Item
5S-FNE Engine5S-FE Engine
No. of Cyls. & Arrangement4-Cylinder, In-Line
Valve Mechanism16-Valve DOHC,
Belt & Gear Drive
Combustion CamberPentroof Type
ManifoldsCross-Flow
Fuel SystemSFI
Displacement cm3 (cu. in.)2164 (132.0)
Bore Stroke mm (in.)87.0 91.0 (3.43 3.58)
Compression Ratio11.0 : 19.5 : 1
Max. Output [SAE-NET]88 kW @ 5200 rpm
(118 HP @ 5200 rpm)
99 kW @ 5200 rpm
(133 HP @ 5200 rpm)
97 kW @ 5200 rpm*
(130 HP @ 5200 rpm)*
Max. Torque [SAE-NET]178 N´m @ 2400 rpm
(131 ft´lbf @ 2400 rpm)
199 N´m @ 4400 rpm
(147 ft´lbf @ 4400 rpm)
197 N´m @ 4400 rpm*
(145 ft´lbf @ 4400 rpm)*
IntakeOpen35 BTDC
Valve
IntakeClose385 ABDC435 ABDCValve
Timing
ExhaustOpen455 BBDCExhaustClose35 AT D C
Fuel Octane Number RON13091
Oil GradeAPI SJ EC or ILSAC
*: California Specification Models

Page 1070 of 4770

TOYOTA CAMRY 2000 Service Repair Manual NF
NEW FEATURES Ð 5S-FNE ENGINE
167CN20
N´m (ft´lbf)
Torque
Output
200
180
160
140
120140
130
120
110
100
90(HP) kW
130
120
110
100
90
80
70
60
50
40
30
20
10
0100
90
80
70
60
50
40
30
20
10
0
1000

Page 1071 of 4770

TOYOTA CAMRY 2000 Service Repair Manual NEW FEATURES Ð 5S-FNE ENGINE 8
FEATURES OF 5S-FNE ENGINE
Features of the 5S-FNE engine are listed below.
Item
Features
Performance
wHigh compression ratio is used.
wHigh lift camshaft is used.
wLow

Page 1072 of 4770

TOYOTA CAMRY 2000 Service Repair Manual NF
NEW FEATURES Ð 5S-FNE ENGINE9
ENGINE PROPER
1. General
The cylinder head and the pistons have been changed for the CNG application.
2. Cylinder Head
Materials that excel in wear resistance have

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