Opel X14XE

Opel X14XE engineThe Opel X14XE is a 1.4 L (1,389 cc, 84.76 cu·in) straight-four natural aspirated four-stroke liquid-cooled internal combustion vertical gasoline engine, manufactured by Opel, a subsidiary of General Motors since 1994 to 2000.

The Opel X14XE engine has a cast-iron cylinder block and aluminum cross-flow cylinder head, belt-driven dual overhead camshafts (DOHC), and 16 valves (4 per cylinder). This engine used a Sequential multi-port fuel injection system and electronic ignition system. The X14XE used sodium-filled exhaust valves, a cast steel crankshaft, and a spheroidal graphite flywheel. It also has an exhaust gas recirculation system (EGR), secondary air injection, and Multec M engine control.

The X14XE engine produced 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 maximum torque.

The breakdown of the engine code is as follows:

  • X – Euro 2 engine
  • 14 – 1.4 Liter displacement
  • X – Comression ratio from 10 to 11.5:1
  • E – Multi Point Fuel Injection system

General information

Engine Specifications
Engine model X14XE
Engine type 4-stroke, DOHC, straight-4
Displacement 1,389 cm3, (84.76 cu·in)
Max. horsepower 90 PS (66 kW; 88 HP) at 6,000 rpm
Max. torque 125 N·m (12.7 kg·m, 92.1 ft·lb) at 4,000 rpm
Cooling system Liquid-cooled
Lubricating system Pressure feed
Ignition system Electronic ignition system without distributor
Fuel system Sequential multi-port fuel injection
Firing order: 1-3-4-2

Cylinder Block

It has a 77.6 mm (3.06 in) cylinder bore and 73.4 mm (2.89 in) piston stroke. Compression ratio rating is 10.5:1. The engine used a cast-iron cylinder block with a cast steel crankshaft, each piston is fitted with two compression rings and a single oil ring.

Cylinder block
Cylinder block alloy: Cast-iron
Compression ratio: 10.5:1
Cylinder bore: 77.6 mm (3.06 in)
Piston stroke: 73.4 mm (2.89 in)
Cylinder internal diameter (standard): 77.575-77.585 mm (3.0541-3.0545 in)
Piston skirt outer diameter (standard): 77.555-77.565 mm (3.0533-3.0537 in)
Number of piston rings (compression / oil): 2/1
Connecting rod center distance: 129.75 mm (5.1083 in)
Piston pin diameter: 17.997-18.000 mm (0.7085-0.7087 in)
Side clearance (Top): 0.020-0.040 mm (0.0008-0.0016 in)
Side clearance (Second): 0.040-0.060 mm (0.0016-0.0024 in)
Side clearance (Oil): 0.010-0.030 mm (0.0004-0.0012 in)
Ring end gap (Top): 0.30-0.50 mm (0.0118-0.0197 in)
Ring end gap (Second): 0.30-0.50 mm (0.0118-0.0197 in)
Ring end gap (Oil): 0.40-1.40 mm (0.0157-0.0551 in)
Ring width (Top): 1.2 mm (0.0472 in)
Ring width (Second): 1.5 mm (0.0591 in)
Ring width (Oil): 3.0 mm (0.1181 in)
Number of main bearings: 5
Crankshaft main journal diameter: 54.980-54.997 mm (2.1646-2.1652 in)
Crankpin journal diameter: 42.971-42.987 mm (1.6918-1.6924 in)
Crankshaft center distance: 36.7 mm (1.445 in)

Cylinder head

The X14XE engine has an aluminum head with 4 valves per cylinder (16 in total) and dual camshafts driven by the crankshaft via a timing belt. Intake valves are 31.0 mm (1.2205 in) in diameter, and the exhaust valves are 27.5 mm (1.0827 in) in diameter. The intake duration is 241°, the intake valve lift is 8.5 mm, the exhaust duration is 233°, the exhaust valve lift is 8.0 mm. The engine used hydraulic tappets.

Cylinder head
Cylinder head alloy: Aluminium
Valve arrangement: DOHC, belt driven
Valves:: 4 per cylinder, (16 valves in total)
Head height: 134.9-135.1 mm (5.311-5.3189 in)
Intake timig: 241°
Exhaust timig: 233°
Valve head diameter (INTAKE): 31.0 mm (1.2205 in)
Valve head diameter (EXHAUST): 27.5 mm (1.0827 in)
Valve length (INTAKE): 101.51-101.93 mm (3.9964-4.013 in)
Valve length (EXHAUST): 100.55-100.97 mm (3.9587-3.9752 in)
Valve steam diameter (INTAKE): 5.995-5.970 mm (0.236-0.235 in)
Valve steam diameter (EXHAUST): 5.935-5.950 mm (0.2337-0.2343 in)

Tightening torque

Tightening procedure and torque specs
Cylinder head Step 1: 25 Nm; 2.5 kg·m; 18.5 ft·lb)
Step 2: Turn all bolts 90°
Step 3: Turn all bolts 90°
Step 4: Turn all bolts 90°

Service Data

The ACEA A2-96 / A3-96 oil with a viscosity of 5W-30, 5W-40, 5W-50 is recommended for the X14XE, refilling oil capacity is 3.25 L (3.43 US. qt, 2.86 Imp. qt.). The recommended spark plug is Bosch FLR8LDCU with 1.0 mm (0.0394 in) spark plug gap.

Idle speed
Idle speed: 700-900 rpm
Compression pressure
Standard: 15.0 bar (15.3 kg/cm2; 218 psi)
Minimum: 12.0 bar (12.2 kg/cm2; 174 psi)
Compression differential limit between cylinders: 1.0 bar (1.0 kg/cm2; 15 psi)
Oil system
Oil type: ACEA A2-96 / A3-96
Recommended oil: 5W-30, 5W-40, 5W-50
Oil capacity: 3.25 L (3.43 US. qt, 2.86 Imp. qt.)
Fuel system
Type: Sequential multi-port fuel injection
Ignition system
Type: Electronic ignition system without distributor
Spark plug: Bosch FLR8LDCU
Spark plug gap: 1.0 mm (0.0394 in)
Spark plug torque: 25 N·m (2.5 kg·m, 18.4 ft·lb)

Applications

Model Years Produced
Opel Corsa B 1.4i 16v 1994-2000
Opel Tigra 1.4i 16v 1994-2000
Opel Astra F 1.4i 16v 1996-1998
Opel Astra G 1.4i 16v 1998-2000

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