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Toyota 3RZ-FE Engine Specifications
The Toyota 3RZ-FE is a 2.7 L (2,693 cc, 164.3 cubic inches)
straight-four 4-stroke naturally aspirated gasoline engine from Toyota
RZ-family. The 3RZ-FE engine was manufactured by Toyota Motor
Corporation from 1994 to 2004 on Kamigo Plant, Aichi Prefecture, Japan.
The 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 3RZ-FE engine used electronically
controlled Multipoint fuel injection system and Electronic Spark Advance
(ESA) ignition system.
Compression ratio rating is 9:5:1. A 95.0 mm (3.74 in) cylinder bore and
95.0 mm (3.74 in) piston stroke give the 3RZ-FE engine a total of 2,693
cc (164.3 cubic inches) of displacement. The 3RZ-FE engine produced 152 PS (112
kW; 150 HP) at 4,800 rpm of maximum horsepower and 240 Nm (24.5 kgm,
176.9 ft-lb) at 4,000 rpm of peak torque.
Engine code identification:
3 - 3-rd generation engine
RZ - Engine family
F - Economy narrow-angle DOHC
E - Multi-Point Fuel Injection
| GENERAL TECHNICAL DATA |
Engine model ...................... 3RZ-FE
Cylinder layout ...................... Four stroke, Inline-4
(Straight-4)
Fuel type ...................... Gasoline (petrol)
Year of production ...................... 1994-2004
Total displacement ...................... 2.7 L, 2,693 cm3 (164.3 cubic inches)
Fuel system ...................... Multi-Point Fuel Injection
Power adder ...................... No data available
Maximum power ...................... 152 PS (112 kW; 150 HP) at 4,800
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 ...................... 173 kg (381 lbs)
| CYLINDER BLOCK |
The 3RZ-FE has a deep-skirt cast iron cylinder block with 95.0 mm (3.74
in) cylinder bore and 86.0 mm (3.39 in) piston stroke. Compression ratio
rating is 9.5:1. This engine is equipped with twin counter-rotating
balance shafts within the crankcase to cancel the secondary inertia
forces.
The 3RZ-FE engine used a fully-balanced forged crankshaft with eight
counterweights and 60.00 mm (2.36 in) of main journal diameter and
53.000 mm (2.08 in) of crankpin journal diameter. Plastic region
tightening bolts are used for both the crankshaft main bearings and
connecting rods.
The engine has connecting rods that are forged from carbon steel. For
increased strength and durability, the connecting rods are shot-peened.
The 3RZ-FE used aluminum alloy pistons with resin-coated skirts and two
compression rings and a single oil ring. In each big-end bearing, an oil
jet sprayed oil to cool the underside of the pistons.
Cylinder block alloy ...................... Cast-iron
Compression ratio ...................... 9.5:1
Cylinder bore ...................... 95.0 mm (3.74 in)
Piston stroke ...................... 95.0 mm (3.74 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) ...................... 94.933-94.943
mm (3.7375-3.7379 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 deg.
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 deg.
| 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 3RZ-FE engine used plastic region tightening
bolts for the cylinder head.
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.
The 3RZ-FE engine has four valves per cylinder: two intakes and two
exhaust. The intake valves have a 37.5 mm (1.4764 in) diameter, exhaust
valves have a 30.5 mm (1.2008 in) diameter. Intake duration is 230
degrees and exhaust duration is 224 degrees. 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 timing ...................... INTAKE ...................... 230 deg.
EXHAUST ...................... 224 deg.
Valve head diameter ...................... INTAKE
...................... 37.5 mm (1.4764 in)
EXHAUST ...................... 30.5 mm (1.2008 in)
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 deg.
Step 3: Turn all bolts another 90 deg.
| 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 4Runner ...................... 1996-2000
Toyota T100 ...................... 1994-1998
Toyota Granvia ...................... 1995-2002
Toyota Hilux ...................... 1995-2004
Toyota Hiace ...................... 1990-2004
Toyota Land Cruiser Prado ...................... 1996-2004
Toyota Touring Hiace ...................... 1998-2002
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| Engines Technical Specifications |