2000 TOYOTA CAMRY Cylinder

3
CAMRY ± NEW FEATURES33
5S-FE ENGINE
1. Description
The intake and exhaust systems have been changed to increase torque and reduce noise. On the California
specification model, the air assist system has been discontinued.

Engine Specifications 
ItemNewPrevious
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 x Stroke mm (in.)87.0 x 91.0 (3.43 x 3.58)
Compression Ratio9.5 : 1
Max. Output [SAE-NET]
101 kW @ 5200 rpm
(136 HP @ 5200 rpm)
99 kW @ 5200 rpm*
(133 HP @ 5200 rpm)*99 kW @ 5200 rpm
(133 HP @ 5200 rpm)
97 kW @ 5200 rpm*
(130 HP @ 5200 rpm)*
Max. Torque [SAE-NET]
203 N.m @ 4400 rpm
(150 ft-lbf @ 4400 rpm)
201 N
.m @ 4400 rpm*
(148 ft-lbf @ 4400 rpm)*
199 N.m @ 4400 rpm
(147 ft
.lbf @ 4400 rpm)
197 N
.m @ 4400 rpm*
(145 ft
.lbf @ 4400 rpm)*
IntakeOpen3 BTDC
Valve
IntakeClose43 ABDCValve
Timing
ExhaustOpen45 BBDCg
ExhaustClose3 AT D C
Fuel Octane Number RON91
Oil GradeAPI SJ EC-II, ILSAC or Better
*: California Specification Models

CAMRY ± NEW FEATURES36
5S-FNE ENGINE
1. Description
The 5S-FNE engine is a new engine that uses CNG (Compressed Natural Gas) as fuel, which has been devel-
oped based on the 5S-FE gasoline engine.
The main component of natural gas is methane (CH
4), which has fewer carbous (C) than gasoline (mean mo-
lecular 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 exclu-
sively 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 equiva-
lent 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 
Item5S-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 (312.0)
Bore x Stroke mm (in.)87.0 x 91.0 (3.43 x 3.58)
Compression Ratio11.0 : 19.5 : 1
Max. Output [SAE-NET]88 kW @ 5200 rpm
(118 HP @ 5200 rpm)
101 kW @ 5200 rpm
(136 HP @ 5200 rpm)
97 kW @ 5200 rpm*
(133 HP @ 5200 rpm)*
Max. Torque [SAE-NET]178 N.m @ 2400 rpm
(131 ft-lbf @ 2400 rpm)
203 N.m @ 4400 rpm
(150 ft-lbf @ 4400 rpm)
201 N
.m @ 4400 rpm*
(148 ft-lbf @ 4400 rpm)*
IntakeOpen3 BTDC
Valve
IntakeClose38 ABDC43 ABDCValve
Timing
ExhaustOpen45 BBDCExhaustClose3 AT D C
Fuel Octane Number RON13091
Oil GradeAPI SJ EC or ILSAC
*: California Specification Models

3
CAMRY ± NEW FEATURES
167CN03 167CN02
5S-FNE Engine 5S-FE Engine39
3. Engine Proper
General
The cylinder head and the pistons have been changed for the CNG application.
Cylinder Head
Materials that excel in wear resistance have been adopted on the valve seats for both the intake and exhaust.
The shape of the holes into which the injectors mount has been changed to accommodate the injectors de-
signed exclusively for the CNG application.
The shape of water jacket around plug has been modified to prevent the deformation.
Piston
To achieve a high compression ratio, the shape of the top of the piston has been changed and pin boss hole
with taper has been adopted.
An additional surface treatment has been provided to improve heat resistance.
The material has been changed to increase rigidity.

3
CAMRY ± NEW FEATURES
172CM18
172CM19
ON
OFF1 sec 1 sec
1 sec 1 sec
ON
OFF1 sec 1 sec
2 sec 2 sec 2 sec53
Injector Control
1) General
Fuel clearing control and injector unsticking control have been added to the injector control.
2) Fuel Clearing Control
While the vehicle is being driven at speeds higher than 60 km / h (37.5 mph), and the ignition switch is
turned OFF after the ECM has detected a low temperature condition of less than 25C (77F) of intake
air temperature, the ECM closes the fuel shutoff valve for the delivery pipe. However, instead of immedi-
ately stopping the engine, the fuel clearing control allows the engine to stop on its own after the fuel in
the delivery pipe has been used up. If the engine is running even after 2 seconds or more have elapsed
after the ignition switch has been turned OFF, the EFI relay is turned OFF to stop the engine.
3) Injector Unsticking Control
When the ignition switch is turned ON after executing the fuel clearing control, the injector unsticking
control activates two cylinders at a time to unstick the valve that is frozen stuck onto the valve seat. At
low temperature conditions. At this time, the shutoff valve remains closed so that the injectors will not
inject fuel.
Gas Leak Judgment
If the ECM has detected a gas leak through the signals received from the pressure sensors, the ECM closes
the shutoff valves and flashes the low fuel level warning light.
These functions are canceled by resetting the ECM (by disconnecting the negative [-] terminal of the bat-
tery), which enables the engine to start.
(The ECM should be reset only after performing a gas leak check and making sure that the leak has been
eliminated.)
NOTE: The low fuel level warning light also flashes when the fuel level is extremely low. The flashing
patterns shown below differentiates a gas leak from a low fuel level.
Flashing Pattern
Gas Leak
Fuel Low Level

3
CAMRY ± NEW FEATURES55
BRAKES
The specifications of the front and rear brakes have been changed.

Specifications 
'00 Model'00 Model'99 Model
Item5S-FE
5S-FNE1MZ-FE5S-FE1MZ-FE
TypeVentilated
Disc
Front
Caliper TypePE57*1,
PE60*
2AX60PE57AX60
Front
Disc
Brake
Wheel Cylinder Dia.
mm (in.)57.22 (2.25)*1
60.33 (2.38)*260.33 (2.38)57.22 (2.25)60.33 (2.38)
Brake
Rotor Size (D x T)*3
mm (in.)
255 x 28*1
(10.04 x 1.10)
275 x 28*
2
(10.83 x 1.10)
275 x 28
(10.83 x 1.10)255 x 28
(10.04 x 1.10)275 x 28
(10.83 x 1.10)
Rear
TypeLeading-
TrailingLeading-
Trailing
Rear
Drum
Brake
Wheel Cylinder Dia.
mm (in.)20.64 (0.81)20.64 (0.81)
BrakeDrum Inner Dia.
mm (in.)288.6 (9.00)288.6 (9.00)
TypeSolid DiscSolid Disc
Rear
DiscCaliper TypePD35R*4
AXS35R*5PD35R
Disc
BrakeWheel Cylinder Dia.
mm (in.)34.93 (1.38)34.93 (1.38)
Rotor Size (D x T)*3
mm (in.)
269 x 10
(10.59 x 0.39)269 x 10
(10.59 x 0.39)
*1: Models with 14º Tire
*
2: Models with 15º Tire
*
3: D: Outer Diameter, T: Thickness
*
4: TMC Made
*
5: TMMK Made

DESCRIPTION
The 5S±FE engine is an in±line, 4±cylinder, 2.2 liter DOHC 16±valve engine.
ENGINE MECHANICAL
± 5S±FE ENGINEENGINE MECHANICALEG1±2

The 5S±FE engine is an in±line, 4±cylinder engine with the cylinders numbered 1±2±3±4
from the front. The crankshaft is supported by five bearings inside the crankcase. These bearings
are made of aluminum alloy.
The crankshaft is integrated with eight weights for balance. Oil holes are placed in the center of
the crankshaft to supply oil to the connecting rods, bearing, pistons and other components.
The firing order is 1±3±4±2. The cylinder head is made of aluminum alloy, with a cross flow
type intake and exhaust layout and with pent±roof type combustion chambers. The spark plugs
are located in the center of the combustion chambers.
The intake manifold has four independent long ports and utilizes the inertial supercharging effect
to improve engine torque at low and medium speeds.
Exhaust and intake valves are equipped with irregular pitch springs made of special valve spring
carbon steel which are capable of functioning no matter what the engine speed.
The intake camshaft is driven by a timing belt, and a gear on the intake camshaft engages with
a gear on the exhaust camshaft to drive it. The cam journal is supported at five places between
the valve lifters of each cylinder and on the front end of the cylinder head. Lubrication of the cam
journals and gears is accomplished by oil being supplied through the oiler port in the center of the
camshaft.
Adjustment of the valve clearance is done by means of an outer shim type system, in which valve
adjusting shims are located above the valve lifters. This permits replacement of the shims without
removal of the camshafts.
Pistons are made of high temperature±resistant aluminum alloy, and a depression is built into
the piston head to prevent interference with the valves.
Piston pins are the full±floating type, with the pins fastened to neither the piston boss nor the
connecting rods. Instead, snap rings are fitted on both ends of the pins, preventing the pins from
falling out.
The No.1 compression ring is made of steel and the No.2 compression ring is made of cast iron.
The oil ring is made of a combination of steel and stainless steel. The outer diameter of each
piston ring is slightly larger than the diameter of the piston and the flexibility of the rings allows
them to hug the cylinder walls when they are mounted on the piston. Compression rings No.1 and
No.2 work to prevent gas leakage from the cylinder and the oil ring works to scrape oil off the
cylinder walls to prevent it from entering the combustion chambers.
The cylinder block is made of cast iron. It has four cylinders which are approximately twice the
length of the piston stroke. The top of each cylinder is closed off by the cylinder head and the
lower end of the cylinders becomes the crankcase, in which the crankshaft is installed. In
addition, the cylinder block contains a water jacket, through which coolant is pumped to cool the
cylinders.
The oil pan is bolted onto the bottom of the cylinder block. The oil pan is an oil reservoir made of
pressed sheet steel. A dividing plate is included 'inside the oil pan to keep sufficient oil in the
bottom of the pan even when the vehicle is tilted. This dividing plate also prevents the oil from
making waves when the vehicle is stopped suddenly and the oil shifts away from the oil pump
suction pipe.
The 5S±FE engine uses two balance shafts. The balance shafts are fitted in balance shaft
housings that are located at the bottom of the cylinder block. The No. 1 balance shaft is driven by
the drive gear of the crankshaft No.3 counterweight at twice the speed of the crankshaft. The No.
2 balance shaft is driven by the No±1 balance shaft at the same speed in the same direction as the
crankshaft. The balance shafts are designed to eliminate secondary inertia force from the engine,
thereby reducing the engine noise (booming noise).
± 5S±FE ENGINEENGINE MECHANICALEG1±3

PREPARATION
SST (SPECIAL SERVICE TOOLS)
09222±30010 Connecting Rod Bushing Remover
& Replacer09201±70010 Valve Guide Bushing Remover & Replacer
(09213±00060) Bolt set (09213±00030) Handle (91651 ±60855) Bolt
(09213±00020) Body With Bolt 09213±80017 Crankshaft Pulley & Gear Puller Set09011±38121 12 mm Socket wrench for 12 Pointed
Head
09223±46011 Crankshaft Front Oil Seal
Replacer
09223±63010 Crankshaft Rear Oil Seal
ReplacerCylinder head bolt and connecting
rod bolt
09213±54015 Crankshaft Pulley Holding Tool09201±41020 Valve Stem Oil Seal Replacer
09202±70010 Valve Spring Compressor
Camshaft oil seal
± 5S±FE ENGINEENGINE MECHANICALEG1±4