Opel Z14XE

The Opel Z14XE is a 1.4 l (1,389 cc, 84.76 cu-in) straight-four 4-stroke natural aspirated gasoline small-displacement engine developed by Opel, at the time a subsidiary of General Motors. The engine was manufactured from 2000 to 2004.

The Z14XE uses a cast-iron engine block with a cast-iron crankshaft and aluminum head with dual belt-driven overhead camshafts (DOHC) and four valves per cylinder (16 valves in total). This is the Euro 4 version of the X14XE engine. The engine is equipped with a sequential multi-port fuel injection system, EGR system, and electronic throttle for reduced emissions.

Bore and stroke are 77.6 mm (3.06 in) and 73.4 mm (2.89 in), respectively. The compression ratio rating is 10.5:1. The Z14XE engine produces 90 PS (66 kW; 88 HP) at 6,000 rpm of maximum horsepower and 125 N·m (12.7 kg·m, 92.1 ft·lb) at 4,000 rpm of peak torque.

The breakdown of the engine code is as follows:

• Z – Euro 4 engine
• 14 – 1.4 Liter displacement
• X – Comression ratio from 10 to 11.5:1
• E – Multi Point Fuel Injection system

General information

Cylinder block

The engine used a cast-iron semi-closed deck cylinder block and a cast-iron crankshaft five-bearings supported system. Bore and stroke are 77.6 mm (3.06 in) and 73.4 mm (2.89 in). Compression ratio rating is 10.5:1.

Cylinder head

The cylinder head is made of an aluminum alloy. The Z14XE engine has belt-driven dual overhead camshafts. Valves are actuated via roller finger followers with hydraulic tappets.

Head tightening procedure and torque specs:

• Step 1: 25 Nm (2.5 kg·m, 18.4 ft·lb)
• Step 2: Turn all bolts 90°
• Step 3: Turn all bolts 90°
• Step 4: Turn all bolts 90°

Maintenance data

Vehicle applications

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