The Opel Z10XEP is a 1.0 l (998 cc, 60.9 cu-in) straight-three four-stroke natural aspirated gasoline small-displacement engine from the second generation of the GM Family O Ecotec engines, developed by Opel, at the time a subsidiary of General Motors. The engine was manufactured since 2002.
The Opel Z10XEP engine uses a light-weight cast-iron semi-closed deck engine block with a cast-iron crankshaft and aluminum head with dual chain-driven overhead camshafts (DOHC) and four valves per cylinder (12 valves in total). It is an updated version of the Z10XE engine and features TwinPort technology – twin intake ports with a choke closing one of the ports at low RPM, providing strong air swirl pattern for higher torque levels and better fuel economy. The crankshaft and oil galleries were also redesigned.
Cylinder bore has been increased from 72.5 mm (2.85 in) to 73.4 mm (2.89 in) and compression ratio rating has been increased from 10.1:1 to 10.5:1.
The Opel Z10XEP has a 73.4 mm (2.89 in) cylinder bore and 78.6 mm (3.09 in) piston stroke. Compression ratio rating is 10.5:1. The Z10XEP engine produces 60 PS (44 kW; 59 HP) at 5,600 rpm of maximum horsepower and 88 Nm (9.0 kg·m; 64.9 ft·lb) at 3,800 rpm of peak torque.
The breakdown of the engine code is as follows:
- Z – Euro 4 engine
- 10 – 1.0 Liter displacement
- X – Comression ratio from 10 to 11.5:1
- E – Multi Point Fuel Injection system
- P – Increased power
|Engine code||Opel Z10XEP|
|Layout||Four stroke, Inline-3 (Straight-3)|
|Fuel type||Gasoline (petrol)|
|Displacement||1.0 L, 998 cm3 (60.9 cu in)|
|Fuel system||Multipoint fuel injection (MFI)|
|Power output||60 PS (44 kW; 59 HP) at 5,600 rpm|
|Torque output||88 Nm (9.0 kg·m; 64.9 ft·lb) at 3,800 rpm|
|Dimensions (L x W x H):||–|
The engine used a cast-iron semi-closed deck cylinder block and a cast-iron crankshaft four-bearings supported system. Bore and stroke are 73.4 mm (2.89 in) and 78.6 mm (3.09 in). Compression ratio rating is 10.5:1.
|Cylinder block alloy||Cast-iron|
|Cylinder bore:||73.4 mm (2.89 in)|
|Piston stroke:||78.6 mm (3.09 in)|
|Number of piston rings (compression / oil):||2 / 1|
The cylinder head is made of an aluminum alloy. The Z10XEP engine has chain-driven dual overhead camshafts with TwinPort technology. Valves are actuated via roller finger followers with hydraulic tappets.
|Cylinder head alloy:||Aluminium|
|Valve Arrangement:||DOHC, chain-driven|
|Valves:||12 (4 valves per cylinder)|
|Valve head diameter:||INTAKE||27.90-28.10 mm (1.0984-1.1062 in)|
|EXHAUST||24.90-25.10 mm (0.9803-0.9880 in)|
Head tightening procedure and torque specs:
- Step 1: 25 Nm (2.5 kg·m, 18.4 ft·lb)
- Step 2: Turn all bolts 60°
- Step 3: Turn all bolts 60°
- Step 4: Turn all bolts 60°
|Oil consumption , L/1000 km (qt. per miles)||up to 0.5 (1 qt. per 1200 miles)|
|Recommended engine oil||5W-30, 5W-40, 10W-30, 10W-40|
API SG / CD
CCMC G4 / G5
|Engine oil capacity (Refill capacity)||With filter change 3.0 l|
|Oil change interval, km (miles)||30,000 (18,000)|
|Spark plug||Bosch FQR8LEU2|
|Spark plug gap||0.85-0.95 mm (0.0334-0.0374 in)|
|Spark plug tightening torque||25 Nm (2.55 kg·m; 18.45 ft·lb)|
|Opel / Vauxhall Corsa C 1.0 12v Eco||2003-2006|
|Opel / Vauxhall Corsa D 1.0 12v||2006-2010|
|Opel / Vauxhall Agila A 1.0 12v||2003-2007|
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.
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