Toyota 2NZ-FE

Toyota 2NZ-FEThe Toyota 2NZ-FE is a 1.3 l (1,298 cc, 79.21 cu-in) straight-four 4-stroke natural aspirated gasoline engine from Toyota NZ-family. The 2NZ-FE engine was manufactured on Kamigo Plant (Aichi Prefecture, Japan) from 1999.

The 2NZ-FE engine features a lightweight aluminum block and aluminum cylinder head with dual overhead camshafts (DOHC) and four valves per cylinder (16 in total). Compression ratio rating is 10.5:1. It has a 75.0 mm (2.95 in) cylinder bore and 73.5 mm (2.89 in) piston stroke. The Toyota 2NZ-FE engine has electronic fuel injection system, VVT-i (Variable Valve Timing with intelligence) system on the intake side, ETCS-i (Electronic Throttle Control System-intelligent) and DIS-4 ignition system with individual ignition coil for each spark plug.

The 2NZ-FE engine was redesigned in 2003 due to the introduction of Euro IV emissions regulations. The following changes were made to the engine:

  • Piston shape was changed;
  • The shape of the exhaust manifold was modified;
  • Construction of the three-way catalytic converter was changed;
  • Three-way catalytic converter was fitted;
  • The 16 tit ECU was changed to 32 bit.

The engine produced 85.7 PS (63 kW; 84.5 HP) at 6,000 rpm of maximum horsepower and 121 Nm (12.34 kg·m; 89.3 ft·lb) at 4,400 rpm of peak torque.

The breakdown of the engine code is as follows:

  • 2 – 2-nd generation engine
  • NZ – Engine family
  • F – Economy narrow-angle DOHC
  • E – Multi Point Fuel Injection

General information

Engine Specifications
Engine code2NZ-FE
LayoutFour stroke, Inline-4 (Straight-4)
Fuel typeGasoline (petrol)
Production1999-
Displacement1.3 L, 1,298 cm3 (79.21 cu-in)
Fuel systemElectronic Fuel Injection (EFI)
Power adderNone
Power output85.7 PS (63 kW; 84.5 HP) at 6,000 rpm
Torque output121 Nm (12.34 kg·m; 89.3 ft·lb) at 4,400 rpm
Firing order1-3-4-2
Dimensions (L x W x H):
WeightA/T: 84.8 kg (187 lb.), M/T: 92.5 kg (203.9 lb.)

Cylinder block

The Toyota 2NZ-FE has an aluminum cylinder block with five bearing support system and thin-walled cast iron liners. It has a 75.0 mm (2.95 in) cylinder bore and 73.5 mm (2.89 in) piston stroke. The engine has a crankshaft with four balance weights and an integrated crankshaft position sensor.

The steel connecting rods for the 2NZ-FE engine has caps that are held by plastic region tightening bolts. The engine is equipped with aluminum alloy pistons, semi-floating type piston pins and low-tension rings (two compression and single oil control ring).

Cylinder block
Cylinder block alloyAluminium
Compression ratio:10.5:1
Cylinder bore:75.0 mm (2.95 in)
Piston stroke:73.5 mm (2.89 in)
Number of piston rings (compression / oil):2 / 1
Number of main bearings:5
Cylinder inner diameter (standard):75.000-75.013 mm (2.9527-2.9528 in)
Piston skirt diameter (standard):74.945-74.955 mm (2.9506-2.9510 in)
Piston pin outer diameter:18.001-18.004 mm (0.7087-0.7088 in)
Piston ring side clearance:Top0.030-0.070 mm (0.0012-0.0027 in)
Second0.020-0.060 mm (0.008-0.0024 in)
Oil0.070-0.150 mm (0.0027-0.0059 in)
Piston ring end gap:Top0.22-0.32 mm (0.0086-0.0125 in)
Second0.32-0.47 mm (0.0125-0.0185 in)
Oil0.10-0.35 mm (0.0039-0.0138 in)
Crankshaft journal diameter:45.988-46.000 mm (1.8105-1.8110 in)
Crankpin diameter:39.992-40.000 mm (1.5745-1.5748 in)

Main bearing cap bolts tightening procedure and torque specs:

  • Step 1: 22 Nm; 2.2 kg·m; 16.2 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: 15 Nm; 1.5 kg·m; 11 ft·lb
  • Step 2: Turn bolts 90°

Crankshaft pulley bolt

  • 128 Nm; 13.0 kg·m; 94.5 ft·lb

Drive plate (A/T) fixing bolts

  • 88 Nm; 8.8 kg·m; 65 ft·lb

Cylinder head

The cylinder head is made of aluminum alloy which gives it good cooling efficiency. The engine has dual overhead camshafts, that are driven by a roller timing chain which has an 8.0 mm pitch and four valves per cylinder (16 valves in total). The timing chain is lubricated by engine oil from an oil jet. The engine has a pentroof type combustion chamber and cross-flow manifolds.

The 2NZ-FE used Variable Valve Timing with intelligence system (VVT-i) on the intake camshaft. Intake valves are 30.5 mm (1.20 in) in diameter, and the exhaust valves are 25.5 mm (1.00 in). The engine has an intake duration of 225 degrees and exhaust duration of 216 degrees. The 2NZ engine used special valve shims to adjust the valve clearance.

Cylinder head
Valve Arrangement:DOHC, chain drive
Valves:16 (4 valves per cylinder)
Valve head diameter:INTAKE30.5 mm (1.20 in)
EXHAUST25.5 mm (1.00 in)
Valve length:INTAKE89.25 mm (3.5138 in)
EXHAUST87.90 mm (3.4606 in)
Valve stem diameter:INTAKE4.970-4.985 mm (0.1957-0.1963 in.)
EXHAUST4.965-4.980 mm (0.1955-0.1961 in.)
Valve spring free length:45.05-45.15 mm (1.774-1.778 in.)
Camshaft cam height:INTAKE44.617-44.717 mm (1.7566-1.7605 in.)
EXHAUST44.046-44.146 mm (1.7340-1.7380 in.)
Outer camshaft journal diameter:№134.449-34.465 mm (1.3563-1.3569 in.)
Other journals diameter22.949-22.965 mm (0.9035-0.9041 in.)

Head tightening procedure and torque specs:

  • Step 1: 29 Nm; 3.0 kg·m; 22 ft·lb
  • Step 2: Turn all bolts 90°
  • Step 3: Turn all bolts another 90°

Camshaft timing sprocket

  • 64 Nm; 6.5 kg·m; 47 ft-lb

Maintenance data

Valve clearance
Intake valve0.15-0.25 mm (0.006-0.010 in)
Exhaust valve0.25-0.35 mm (0.010-0.014 in)
Compression pressure
Standard14.0 kg/m2 / 200 rpm
Minimun11.0 kg/m2 / 200 rpm
Compression differential limit between cylinders1.0 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 oil5W-20, 5W-30, 10W-30
Oil type APISH or SJ
Engine oil capacity (Refill capacity) With filter change 3.4 l
Without filter change 3,7 l
Oil change interval, km (miles)5,000-10,000 (3,000-6,000)
Ignition system
Spark plugDENSO: K16R-U11, NGK: KBR5EYA-11
Spark plug gap1.1 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 – 0.20 mm (0.008 in)]
Exhaust:
N = R + [M – 0.30 mm (0.012 in)]

Valve lifters are available in 35 sizes to range from 5.06 mm (0.1992 in) to 5.74 mm (0.2259 in), in steps of 0.02 mm (0.0008 in).

Example (intake valve):
R = 5.10 mm
M = 0.52 mm
N = 5.10 + (0.52 – 0.20) = 5.42 mm.

Vehicle applications

ModelYears Produced
Toyota Yaris
Toyota Echo
Toyota Vitz
Toyota Vios
Toyota Belta
Toyota Platz
Toyota Porte
Toyota Corolla (E140), Pakistan
Toyota Corolla (E170), Pakistan
Toyota bB
Toyota Ist
Toyota Corolla (E120), JDM and Middle East
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We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.

5 Comments

  1. Since from.few days I was searching 2NZ-FE engine specifications. Now I found at your site. That amazing. Can u plz share with me Parts attachment or illustrated parts catalogue ? All maintenance manual? Bcoz I need to know for how long we can use this engine? I mean engine life ? How many hours spark plugs life or lump sum by km? There is many thing I need to know. Waiting for your kind words.

    • Well, what can I say … The engine lives about 200,000 km, only the replacement is farther, it is not repairable. I, unfortunately, do not have a spare parts catalog, but I will look for a manual. I do not remember if I had a version in English. The spark plug lifetime is about 20,000 km.

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