The 1.4-liter Opel C14NZ engine was produced from 1989 to 1996 at a German company and was installed on the most popular models of its time, such as Astra, Corsa, Kadett. This power unit replaced the well-known C13N engine on the conveyor, then gave way to the X14XE.
C10 family: C14NZ, C16NZ, C18NZ.
Specifications
| Production years | 1989-1996 |
| Displacement, cc | 1389 |
| Fuel system | single injection |
| Power output, hp | 60 |
| Torque output, Nm | 103 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 77.6 |
| Piston stroke, mm | 73.4 |
| Compression ratio | 9.4 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.5 |
| Fuel type | petrol |
| Euro standards | EURO 1 |
| Fuel consumption, L/100 km (for Opel Astra 1995) — city — highway — combined |
9.4 5.3 6.8 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 110 |
The engine was installed on:
- Opel Astra F (T92) in 1991 – 1996;
- Opel Corsa A (S83) in 1989 – 1993, Corsa B (S93) in 1993 – 1996;
- Opel Kadett E (T85) in 1989 – 1991.
Disadvantages of the C14NZ engine
- The ignition system delivers the most problems, the spark constantly disappears here;
- The search for the cause should start with the cover of the distributor, then look at the candles and wires;
- Monitor the condition of the timing belt, its resource is 60 thousand km, and when it breaks, the valves bend;
- All kinds of electronic sensors often fail, and especially the lambda probe;
- The thermostat, the fuel pump in the tank, the idle speed controller have a modest resource.
Frequently asked questions about the Opel C14NZ
How much power does the Opel C14NZ make?
The Opel C14NZ develops 60 hp and 103 Nm of torque.
How much oil does the Opel C14NZ take and which one?
Engine oil capacity: 3.5 liters. Recommended oil: 5W-30.
Does the Opel C14NZ have a timing belt or chain?
The Opel C14NZ uses a timing belt.
Is the Opel C14NZ turbocharged?
No, the Opel C14NZ is naturally aspirated.
Does the Opel C14NZ need valve clearance adjustment?
No, the Opel C14NZ has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Opel C14NZ last?
The typical lifespan of the Opel C14NZ is ~300 000 km with proper maintenance.
What is the fuel consumption of the Opel C14NZ?
Opel Astra 1995: city 9.4, highway 5.3, combined 6.8 L/100 km.
What cars was the Opel C14NZ installed on?
Opel Astra F (T92) in 1991 - 1996; Opel Corsa A (S83) in 1989 - 1993, Corsa B (S93) in 1993 - 1996; Opel Kadett E (T85) in 1989 - 1991.
What are the common problems of the Opel C14NZ?
The ignition system delivers the most problems, the spark constantly disappears here. The search for the cause should start with the cover of the distributor, then look at the candles and wires. All known problems.
