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Toyota 1KZ-TE Engine Specifications
The Toyota 1KZ-TE is a 3.0 l (2,982 cc, 181.97 cubic inches) four
cylinders, 4-stroke water-cooled turbocharged internal combustion diesel
engine, manufactured by the Toyota Motor Corporation since 1993 to 2003.
The engine has a cast-iron block with 96.0 mm (3.78 in) cylinder
bores and a 103.0 mm (4.06 in) piston stroke for a capacity of 3.0 l.
Compression ratio rating is 21.2:1. The engine has an aluminum alloy
cylinder head with a single overhead camshaft (SOHC) two valves per
cylinder, electronically controlled indirect fuel injection system
ETCS-i (Electronic Throttle Control System) and water-cooled Toyota
CT12B turbocharger with boost pressure up to 0.8 bar. The engine is
equipped with the EGR system.
The Toyota first version of 1KZ-TE produced 130 PS (96 kW; 129 HP) at
3,600 rpm of horsepower and 332 Nm (33.9 kgm; 245.0 ft-lb) at 2,000 rpm
of torque. Redline is 4400 rpm. Later version with intercooler produced
from 140 PS (103 kW; 138 HP) at 3,600 rpm to 147 PS (108 kW; 145 HP) at
3,600 rpm of horsepower and up to 343 Nm (35.0 kgm; 253.1 ft-lb) at
2,000 rpm of torque.
Engine code identification:
1 - 1nd generation engine
KZ - Engine family
T - Turbocharged
E - Electronic fuel injection
| GENERAL TECHNICAL DATA |
Engine model ............... 1KZ-TE
Cylinder layout ............... Straight-4, vertical
Fuel type ............... Diesel
Production ............... 1993-2006
Total displacement ............... 3.0 L, 2,982 cm 3 (181.97 cubic
inches)
Injection pump ............... Electronically controlled
Power adder ............... Toyota CT12B
Rated power ............... 130 PS (96 KW; 129 HP) at 3,600 rpm
140 PS (103 KW; 138 HP) at 3,600 rpm
147 PS (108 KW; 145 HP) at 3,600 rpm
Torque output ............... ‘
289 Nm (29.5 kgm; 213.3 ft-lb) at 2,000 rpm
295 Nm (30.0 kgm; 217.7 ft-lb) at 2,400 rpm
232 Nm (23.7 kgm; 171.2 ft-lb) at 2,000 rpm
334 Nm (34.0 kgm; 246.5 ft-lb) at 2,000 rpm
343 Nm (35.0 kgm; 253.1 ft-lb) at 2,000 rpm
Firing (enjection) order ............... 1-3-4-2
Dimensions (L x H x W) ............... No data available
Weight ...............
| CYLINDER BLOCK |
The cylinder block has a monoblock high-strength cast-iron structure
with the five-bearing-support system. The cylinder bores were plateau
honed for more efficient piston ring sealing. The 1KZ-TE engine is
equipped with a fully balanced steel crankshaft that has five main
journals and operated on aluminum alloy bearings.
The connecting rods are made from lightweight carbon steel and each rod
has an internal oil passage which supplied an oil gallery in the piston.
The pistons are made from aluminum alloy and an FRM (fiber reinforced
metal) top ring groove to improve wear resistance. Each piston is fitted
with two compression and one oil control rings. The cylinder bore is
96.0 mm (3.78 in), piston stroke is 103.0 mm (4.06 in) and compression
ratio rating is 21.2:1.
Cylinder block alloy ............... Cast iron
Compression ratio ............... 21.2:1
Cylinder bore ............... 96.0 mm (3.78 in)
Piston stroke ............... 103.0 mm (4.06 in)
Number of piston rings (compression / oil) ............... 2 / 1
Number of main bearings ............... 5
Cylinder bore inner diameter ............... 96.000-96.010 mm
(3.7795-3.7799 in)
Piston skirt diameter ............... 95.940-95.950 mm (3.7772-3.7776
in)
Piston ring groove ............... First ............... 0.060-0.110 mm
(0.0024-0.0043 in)
Second ............... 0.060-0.100 mm (0.0024-0.0039 in)
Oil ............... 0.020-0.060 mm (0.0009-0.0024 in)
Piston ring end gap ............... First ............... 0.350-0.570 mm
(0.0138-0.0224 in)
Second ............... 0.400-0.600 mm (0.0157-0.0236 in)
Oil ............... 0.200-0.500 mm (0.0079-0.0197 in)
Piston pin outer diameter ............... 34.000-34.012 mm
(1.3386-1.3391 in)
Piston pin bore diameter ............... 34.012-34.024 mm (1.3391-1.3395
in)
Crankshaft main journal diameter ............... 69.994-70.000 mm
(2.7557-2.7559 in)
Crankpin diameter ............... 58.994-59.000 mm (2.3226-2.3228 in)
Main bearing cap tightening procedure and torque specs:
Step 1: 49 Nm; 5.0 kgm; 36 ft-lb
Step 2: Turn all bolts 90deg
After securing bearing cap bolts, make sure crankshaft turns smoothly by
hand.
Connecting rod cap
Step 1: 29 Nm; 3.0 kgm; 22 ft-lb
Step 2: Turn all bolts 90deg
Crankshaft pulley bolt
363 Nm; 37.0 kgm; 268 ft-lb
Flywheel (M/T) or Drive plate (A/T) fixing bolts
145 Nm; 14.8 kgm; 107 ft-lb
| CYLINDER HEAD |
The 1KZ-TE has an aluminum alloy cylinder head with a cross-flow
configuration which is mounted on a steel laminate type head gasket and
had plastic region tightening bolts. The engine has single overhead
(SOHC) high-quality steel camshaft and two valves per cylinder: one
intake and one exhaust (8 valves in total). The camshaft is driven by a
timing belt and gears.
Intake valves are 42.5 mm (1.6732 in) in diameter, and the exhaust
valves are 37.0 mm (1.4567 in). Intake duration is 218deg and exhaust
duration is 236deg. The Toyota engine does not have hydraulic
lifters, so special shims are used to adjust the valve clearance. Shims
are available in 17 sizes from 2.50 mm (0.0984 in) to 3.30 mm (0.1299
in), in steps of 0.05 mm (0.0020 in).
Cylinder head alloy ............... Aluminium
Valve Arrangement ............... SOHC
Valves ............... 8 (2 valves per cylinder)
Intake valves diameter ............... 42.5 mm (1.6732 in)
Exhaust valves diameter ............... 37.0 mm (1.4567 in)
Intake valves length ............... 103.29-103.69 mm (4.0665-4.0822 in)
Exhaust valves length ............... 103.29-103.69 mm (4.0665-4.0822
in)
Intake valve stem diameter ............... 7.975-7.990 mm (0.3140-0.3146
in)
Exhaust valves stem diameter ............... 7.960-7.975 mm
(0.3134-0.3140 in.l
Camshaft journal diameter ............... 27.969-27.985 mm
(1.1011-1.1018 in)
Intake cam lobe height ............... 54.810-54.910 mm (2.1579-2.1618
in)
Exhaust cam lobe height ............... 56.140-56.240 mm (2.2102-2.2142
in)
Head tightening procedure and torque specs:
Step 1: 39 Nm; 4.0 kgm; 29 ft-lb
Step 2: Turn all bolts 90deg
Step 3: Turn all bolts 90deg
Camshaft bearing cap
18 Nm; 1.85 kgm; 13 ft-lb
| MAINTENANCE DATA |
Valve clearance (Cold)
Intake valve ............... 0.20-0.30 mm (0.008-0.012 in)
Exhaust valve ............... 0.25-0.35 mm (0.010-0.014 in)
Compression pressure
Standard ............... 31.0 kg/m2 (3,040 kPa, 441 psi)
Minimum ............... 20.0 kg/m2 (1,961 kPa, 284 psi)
Compression differential limit between cylinders ............... 5.0
kg/m2 (490 kPa, 71 psi)
Oil system
Recommended engine oil ............... 10W-30 or 10W-40 (“CF”, “CE”,
“CD”)
Engine oil capacity ............... Dry fill: 7.5 L (7.9 US qt, 6.6 Imp.
qt)
With oil filter change: 7.0 L (7.4 US qt, 6.2 Imp. qt)
Without oil filter change: 6.4 L (6.8 US qt, 5.6 Imp. qt)
Oil pressure ............... Idle speed: 0.3 kgf/cm2 (29 kPa, 4.3 psi)
At 3,000 rpm: 2.5 kgf/cm2 (245 kPa, 33 psi)
Fuel system
Injection nozzle opening pressure ............... New nozzle: 151-159
kgf/cm2 (14,800-15,590 kPa, 2,150-2,260 psi)
Reused nozzle: 146-154 kgf/cm2 (14,300-15,100 kPa, 2,080-2,190 psi)
Adjusted pressure*: 145-155 kgf/cm2 (14,220-15,200 kPa, 2,060-2,200 psi)
*- Varying the adjusting shim thickness by 0.025 mm (0.0010 in) changes
the injection pressure by about 4.8 kgf/cm2 (470 kPa, 68 psi).
| VEHICLE APPLICATIONS |
Model ............... Years Produced
Toyota Land Cruiser Prado (KZJ 70/90/120) ............... No data
available
Toyota Hilux Surf / 4Runner (KZN 130/180/210) ............... No data
available
Toyota Hiace (KZH 100) ............... No data available
Toyota Gran Via (KCH 10) ............... No data available
Toyota Grand Hiace (KCH 10) ............... No data available
Toyota Touring Hiace (KCH 40) ............... No data available
Toyota Regius (KCH 40) ............... No data available
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| Engines Technical Specifications |