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Toyota 2RZ-FE Engine Specifications
The Toyota 2RZ-FE is a 2.4 L (2,438 cc, 148.8 cubic inches) straight-four 4-stroke naturally aspirated gasoline engine from Toyota RZ-family. The engine was manufactured from 1994 to 2004. The 2RZ-FE engine features a cast-iron cylinder block and aluminum cylinder head with two overhead camshafts (DOHC) and four valves per cylinder (16 in total). The Toyota 2RZ-FE engine used Multipoint fuel injection system and Electronic Spark Advance (ESA) ignition system. Compression ratio rating is 9:5:1. The cylinder bore is 95.0 mm (3.74 in) and the piston stroke is 86.0 mm (3.39 in). The 2RZ-FE engine produced 144 PS (106 kW; 142 HP) at 5,000 rpm of maximum horsepower and 217 Nm (22 kgm, 159.9 ft-lb) at 4,000 rpm of maximum torque.
Engine code identification:
2 – 2-nd generation engine
RZ – Engine family
F – Economy narrow-angle DOHC
E – Multi-Point Fuel Injection
| GENERAL TECHNICAL DATA |
Engine model ...................... 2RZ-FE
Cylinder layout ...................... Four stroke, Inline-4
(Straight-4)
Fuel type ...................... Gasoline (petrol)
Year of production ...................... 1994-2004
Total displacement ...................... 2.4 L, 2,438 cm3 (148.8 cubic inches)
Fuel system ...................... Multi-Point Fuel Injection
Power adder ...................... No data available
Maximum power ...................... 144 PS (106 kW; 142 HP) at 5,000
rpm
Maximum torque ...................... 217 Nm (22 kgm, 159.9 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 2RZ-FE has a cast-iron cylinder block. A 95.0 mm (3.74 in) cylinder
bore and 86.0 mm (3.39 in) piston stroke give the 2RZ-FE engine a total
of 2,438 cc, (148.8 cubic inches) of displacement. Compression ratio rating is
9.5:1. The 2RZ-FE engine used a fully-balanced crankshaft with 60.00 mm
(2.36 in) of main journal diameter and 53.000 mm (2.08 in) of crankpin
journal diameter.
Cylinder block alloy ...................... Cast-iron
Compression ratio ...................... 9.5:1
Cylinder bore ...................... 95.0 mm (3.74 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) ...................... 94.990-95.003
mm (3.7398-3.7403 in)
Piston skirt diameter (standard) ...................... 94.923-94.933
mm (3.7371-3.7375 in)
Piston pin outer diameter ...................... 24.000-24.009 mm
(0.9449-0.9452 in)
Piston ring side clearance ...................... Top
...................... 0.020-0.070 mm (0.0008-0.0028 in)
Second ...................... 0.030-0.070 mm (0.0012-0.0028 in)
Piston ring end gap ...................... Top ......................
0.300-0.400 mm (0.0118-0.0157 in)
Second ...................... 0.400-0.500 mm (0.0157-0.0197 in)
Crankshaft journal diameter ...................... №3: 59.981-59.994 mm
(2.2615-2.3620 in.)
Other: 59.987-60.000 mm (2.3617-2.3622 in.)
Crankpin diameter ...................... 52.987-53.000 mm
(2.0861-2.0866 in)
Crankshaft bearing cap tightening procedure and torque specs:
Step 1: 39 Nm; 3.9 kgm; 29 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: 45 Nm 4.6 kgm; 33 ft-lb)
Step 2: Turn bolts 90°
| CYLINDER HEAD |
The cylinder head is made of aluminum alloy which gives it good cooling
efficiency. The engine has dual overhead camshaft design with four
valves per cylinder. The intake camshaft is driven by a timing chain
which has a hydraulic chain tensioner and oil jet for lubrication. The
exhaust camshaft is driven via a scissors gear from the intake camshaft.
This engine does not use hydraulic lifters, so you need to adjust the
valves clearances every 30,000 km (20,000 miles) of mileage.
Valve Arrangement ...................... DOHC, chain drive
Valves ...................... 16 (4 valves per cylinder)
Valve head diameter ...................... INTAKE
...................... No data available
EXHAUST ...................... No data available
Valve length ...................... INTAKE ......................
103.45 mm (4.0728 in)
EXHAUST ...................... 103.60 mm (4.0787 in)
Valve stem diameter ...................... INTAKE
...................... 5.970-5.985 mm (0.235-0.2356 in)
EXHAUST ...................... 5.965-5.980 mm (0.2348-0.2354 in)
Camshaft cam height ...................... INTAKE
...................... 45.31-45.41 mm (1.7839-1.7878 in)
EXHAUST ...................... 45.06-45.16 mm (1.774-1.7779 in)
Outer camshaft journal diameter ...................... 26.959-26.975 mm
(1.0614-1.062 in)
Head tightening procedure and torque specs:
Step 1: 39 Nm; 4.0 kgm; 29 ft-lb
Step 2: Turn all bolts 90°
Step 3: Turn all bolts another 90°
| MAINTENANCE DATA |
Valve clearance (Cold)
Intake valve (COLD) ...................... 0.15-0.25 mm (0.006-0.010 in)
Exhaust valve (COLD) ...................... 0.29-0.39 mm (0.0114-0.0154
in)
Compression pressure
Standard ...................... 12.5 kgf/cm2 (178 psi) / 200 rpm
Minimun ...................... 9.0 kgf/cm2 (127 psi) / 200 rpm
Compression differential limit between cylinders ......................
1.0 kgf/cm2 (14 psi) / 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-30, 10W-30
Oil type API ...................... SL “Energy-Conserving”
Engine oil capacity (Refill capacity) ...................... 4.7-5.5
liters (5.0-5.8 US qts, 4.1-4.8 imp. qts)
Oil change interval, km (miles) ...................... 5,000-10,000
(3,000-6,000)
Oil pressure ...................... Idle spped: 29 kPa (0.3 kg/cm3; 4.2
psi)
At 3,000 rpm: 245-490 kPa (2.5-5.0 kg/cm3; 36-71 psi)
Spark plug ...................... DENSO: K16R–U11, NGK: BKR5EYA–U
Spark plug gap ...................... 1.0-1.1 mm (0.0394-0.0433 in)
Spark plug torque ...................... 20 Nm (2 kgm, 14.7 ft-lb)
Valve clearance adjustment data
Calculate the thickness of new adjusting valve shim so valve clearance
comes within specified values.
R = Thickness of removed valve shim
N = Thickness of new valve shim
M = Measured valve clearance
Intake:
N = R + [M – 0.20 mm (0.008 in)]
Exhaust:
N = R + [M – 0.30 mm (0.012 in)]
Valve shims are available in 17 sizes to range from 2.500 mm (0.0984
in.) to 3.300 mm (0.1299 in.), in steps of 0.05 mm (0.0020 in).
Example (exhaust valve):
R = 2.650 mm
M = 0.500 mm
N = 2.650 + (0.50 – 0.30) = 2.800 mm.
| VEHICLE APPLICATIONS |
Model ...................... Years Produced
Toyota Tacoma ...................... 1995-2004
Toyota Hilux ...................... 1998-2004
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