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Toyota 1AZ-FSE Engine Specs
The Toyota 1AZ-FSE is a 2,0 l (1998 cc, 121.93 cubic inches) straight-four 4-stroke naturally aspirated gasoline engine from Toyota AZ-family. This engine was manufactured by Toyota Motor Company from 2000 to 2009 in Japan. The Toyota 1AZ-FSE features a lightweight aluminum block with cast-iron cylinder liners and aluminum head with two camshafts (DOHC) and four valves per cylinder. The 1AZ-FSE engine has slant-squish combustion chambers, offset cylinder and crank centers, VVT-i (Variable Valve Timing with intelligence) for the intake side and Toyota’s D-4 direct injection system. An 86.0 mm (3.39 in) cylinder bore and 86.0 mm (3.39 in) piston stroke give the motor a total of 1,998 cc (121.93 cubic inches) of displacement. Compression ratio rating is 9.8:1, 10:5:1 to 11.0:1 (depends on the year and car model). It produces from 150 PS (110 kW; 148 HP) at 6,000 rpm to 155 PS (114 kW; 153 HP) at 6,000 rpm of maximum horsepower and from 192 Nm (19.6 kgm; 141.7 ft-lb) at 4,000 rpm to 200 Nm (20.4 kgm; 147.6 ft-lb) at 4,000 rpm of peak torque.
Engine code identification:
1 – 1-st generation engine
AZ – Engine family
F – Economy narrow-angle DOHC
S – Gasoline direct injection system (D-4)
E – Multi Point Fuel Injection
| GENERAL TECHNICAL DATA |
Engine model ...................... 1AZ-FSE
Cylinder layout ...................... Four stroke, Inline-4
(Straight-4)
Fuel type ...................... Gasoline (petrol)
Year of production ...................... 2000-2009
Total displacement ...................... 2.0 L, 1,998 cc (121.93 cu in)
Fuel system ...................... Toyota D-4 direct injection system
Power adder ...................... None
Maximum power ...................... 150 PS (110 kW; 148 HP) at 6,000
rpm
152 PS (112 KW; 150 HP) at 6,000 rpm
155 PS (114 kW; 153 HP) at 6,000 rpm
Maximum torque ...................... 192 Nm (19.6 kgm; 141.7 ft-lb) at
4,000 rpm
198 Nm (20.2 kgm; 146.1 ft-lb) at 4,000 rpm
200 Nm (20.4 kgm; 147.6 ft-lb) at 4,000 rpm
Firing order ...................... 1-3-4-2
Dimensions (L x W x H) ...................... No data available
Weight ...................... No data available
| CYLINDER BLOCK |
The 1AZ-FSE has an open-deck die-cast aluminum cylinder block with
cast-in iron liners and a die-cast aluminum lower crankcase and a
stamped oil pan. The forged steel crankshaft is fully balanced with
eight counterweights and supported by five main bearings.
A helical gear pressed in No. 3 counterweight drives twin
contra-rotating balance shafts in the shaft housing within the lower
crankcase. The engine used aluminum pistons with two compression and
single oil ring. The cylinder bore is 86.0 mm (3.39 in) and the piston
stroke is 86.0 mm (3.39 in). Compression ratio rating is 9.8:1, 10:5:1
to 11.0:1.
Cylinder block alloy ...................... Aluminium
Compression ratio ...................... 9.8:1, 10.5:1 or 11:1
Cylinder bore ...................... 86.0 mm (3.39 in)
Piston stroke ...................... 86.0 mm (3.39 in)
Number of piston rings (compression / oil) ...................... 2 / 1
Number of main bearings ...................... 5
Cylinder inner diameter (standard) ...................... 86.000-86.013
mm (3.3858-3.3863 in)
Piston skirt diameter (standard) ...................... 85.940-85.950
mm (3.3834-3.3838 in)
Piston pin outer diameter ...................... 22.000 mm (0.8661 in)
Piston ring side clearance ...................... Top
...................... 0.020-0.070 mm (0.0008-0.0028 in)
Second ...................... 0.020-0.060 mm (0.0008-0.0024 in)
Piston ring end gap ...................... Top ......................
0.30-0.40 mm (0.0118-0.0157 in)
Second ...................... 0.47-0.62 mm (0.0185-0.0244 in)
Oil ...................... 0.10-0.35 mm (0.0039-0.0138 in)
Crankshaft main journal diameter ...................... 54.998-55.000
mm (2.1652-2.1653 in)
Crankpin diameter ...................... 47.990-48.000 mm
(1.8894-1.8898 in)
Main bearing cap bolts tightening procedure and torque specs:
Step 1: 40 Nm; 4.0 kgm; 29.5 ft-lb
Step 2: Turn all bolts 90°
After securing bearing cap bolts, make sure crankshaft turns smoothly by
hand.
Connecting rod bearing bolts
Step 1: 24.5 Nm; 2.5 kgm; 18 ft-lb
Step 2: Turn bolts 90°
Drive plate (A/T) fixing bolts
83 Nm; 8.5 kgm; 61 ft-lb
| CYLINDER HEAD |
The cylinder head is made of strong, light aluminum alloy which gives it
good cooling efficiency. Each camshaft is supported by five bearings.
The dual overhead camshafts are driven by a single-stage roller chain.
The camshafts act on four valves per cylinder via bucket tappets. Valve
diameters are 34.0 mm (1.3 in) for intake and 29.5 mm (1.2 in) for
exhaust, with 8.0 mm (0.3 in) lift for both intake and exhaust valves.
Valve Arrangement ...................... DOHC, chain drive
Valves ...................... 16 (4 valves per cylinder)
Valve head diameter ...................... INTAKE
...................... 34.0 mm (1.3385 in)
EXHAUST ...................... 29.5 mm (1.1614 in)
Valve length ...................... INTAKE ......................
101.71 mm (4.004 in)
EXHAUST ...................... 101.15 mm (3.982 in)
Valve stem diameter ...................... INTAKE
...................... 5.470-5.485 mm (0.2153-0.2159 in)
EXHAUST ...................... 5.465-5.480 mm (0.151 – 0.2157 in)
Valve spring free length ...................... 45.7 mm (1.799 in)
Camshaft cam height ...................... INTAKE
...................... 45.510-45.610 mm (1.7917-1.7957 in)
EXHAUST ...................... 45.983-46.083 mm (1.8103-1.8143 in)
Outer camshaft journal diameter ...................... №1
...................... 35.971-35.985 mm (1.4162-1.4167 in)
№2, 3, 4, 5 ...................... 22.959-22.975 mm (0.9039-0.9045 in)
Head tightening procedure and torque specs:
Step 1: 79 Nm; 8.0 kgm; 58 ft-lb
Step 2: Turn all bolts 90°
Camshaft timing gear assy bolt
54 Nm; 5.5 kgm; 40 ft-lb
Camshaft bearing cap bolts
№ 1:30 Nm; 3.0 kgm; 22 ft-lb
Other:9 Nm; 0.9 kgm; 6.4 ft-lb
| MAINTENANCE DATA |
Valve clearance (HOT)
Intake valve ...................... 0.19-0.29 mm (0.007-0.011 in)
Exhaust valve ...................... 0.30-0.40 mm (0.012-0.016 in)
Idle speed ...................... 650±50 rpm
Ignition timing ...................... Since 2001: 4-12°
Since 2004: 8-16°
Compression pressure
Standard ...................... 13.0 kg/m2 / 200 rpm
Minimun ...................... 11.0 kg/m2 / 200 rpm
Compression differential limit between cylinders ......................
1.0 kg/m2 / 200 rpm
Oil system
Oil consumption , L/1000 km (qt. per miles) ...................... up to
0.5 (1 qt. per 1200 miles)
Recommended engine oil ...................... 5W-20, 5W-30, 10W-30
Oil type API ...................... SJ
Engine oil capacity (Refill capacity) ...................... With filter
change 4.2 l
Without filter change 4.0 l
Oil change interval, km (miles) ...................... 10,000 (6,000)
Oil Pressure, kPa (bar, kg/cm 2, psi) ...................... Idle speed:
More than 60 (0.6, 0.61, 9)
2,000 rpm: More than 270 (2.7, 2.8, 39)
Ignition system
Spark plug ...................... DENSO: SK20BGR11
Spark plug gap ...................... 1.1 mm (0.043 in)
Valve clearance adjustment data
Calculate the thickness of new adjusting valve lifter so valve clearance
comes within specified values.
R = Thickness of removed valve lifter
N = Thickness of new valve lifter
M = Measured valve clearance
Intake:
N = R + [M – 0.24 mm (0.009 in)]
Exhaust:
N = R + [M – 0.35 mm (0.014 in)]
Valve lifters are available in 35 sizes to range from 5.06 mm (0.1992
in) to 5.74 mm (0.2260 in), in steps of 0.02 mm (0.0008 in).
Example (intake valve):
R = 5.12 mm
M = 0.45 mm
N = 5.12 + (0.45 – 0.35) = 5.22 mm, so we need a valve lifter 5.22 mm
(0.2055 in).
| VEHICLE APPLICATIONS |
Model ...................... Years Produced
Toyota Avensis ...................... No data available
Toyota Avensis Verso ...................... No data available
Toyota Noah ...................... No data available
Toyota Voxy ...................... No data available
Toyota RAV4 ...................... No data available
Toyota Gaia ...................... No data available
Toyota Isis ...................... No data available
Toyota Ipsum ...................... No data available
Toyota Caldina ...................... No data available
Toyota Wish ...................... No data available
Toyota Allion ...................... No data available
Toyota Premio ...................... No data available
Toyota Opa ...................... No data available
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