Toyota 2NZ-FE (Recondition)

Description

The 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 code	2NZ-FE
Layout	Four stroke, Inline-4 (Straight-4)
Fuel type	Gasoline (petrol)
Production	1999-
Displacement	1.3 L, 1,298 cm3 (79.21 cu-in)
Fuel system	Electronic Fuel Injection (EFI)
Power adder	None
Power output	85.7 PS (63 kW; 84.5 HP) at 6,000 rpm
Torque output	121 Nm (12.34 kg·m; 89.3 ft·lb) at 4,400 rpm
Firing order	1-3-4-2
Dimensions (L x W x H):	–
Weight	A/T: 84.8 kg (187 lb.), M/T: 92.5 kg (203.9 lb.)

 

Cylinder block

Cylinder block alloy		Aluminium
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:	Top	0.030-0.070 mm (0.0012-0.0027 in)
	Second	0.020-0.060 mm (0.008-0.0024 in)
	Oil	0.070-0.150 mm (0.0027-0.0059 in)
Piston ring end gap:	Top	0.22-0.32 mm (0.0086-0.0125 in)
	Second	0.32-0.47 mm (0.0125-0.0185 in)
	Oil	0.10-0.35 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)