The 1.8-liter 16-valve Daewoo T18SED engine was assembled from 2002 to 2007 in South Korea and was installed only on a couple of platform models: Lacetti and Nubira in J200 bodies. This motor was a clone of the Opel X18XE power unit and gave way to the newer F18D3.
SE-series: T18SED, X20SED, T22SED.
Specifications
| Production years | 2002-2007 |
| Displacement, cc | 1799 |
| Fuel system | distributed injection |
| Power output, hp | 121 |
| Torque output, Nm | 165 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 81.6 |
| Piston stroke, mm | 86 |
| Compression ratio | 9.8 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.75 |
| Fuel type | petrol |
| Euro standards | EURO 3 |
| Fuel consumption, L/100 km (for Daewoo Lacetti 2005) — city — highway — combined |
9.8 5.9 7.4 |
| Engine lifespan, km | ~320 000 |
| Weight, kg | 140 |
The engine was installed on:
- Daewoo Nubira J200 in 2002 – 2005;
- Chevrolet Lacetti 1 (J200) in 2004 – 2007.
Disadvantages of the Daewoo T18SED engine
- Simple and reliable power unit, it is inexpensive both in maintenance and repair;
- Monitor the condition of the timing belt, its resource is 60 thousand km, and when it breaks, the valves bend;
- Another weak point of the engine is the exhaust manifold, it often cracks;
- RPMs at idle usually float due to contamination of the idle control or crankcase ventilation;
- In electrical terms, the camshaft position sensor fails more often than others.
