The company’s smallest models, the Spark and Matiz, were equipped with the 1.0-liter Chevrolet B10S1 or LA2 engine, which was manufactured in South Korea between 2002 and 2009. Before 2004, the power unit was significantly different and was commonly known as just the B10S.
The engines in the B series are B10S1, B10D1, B12S1, B12D1, B12D2, and B15D2.
The engine was installed on:
- Chevrolet Spark M200 in 2005 – 2009;
- Daewoo Matiz in 2002 – 2009.
Specifications
| Production years | 2002-2009 |
| Displacement, cc | 995 |
| Fuel system | distributed injection |
| Power output, hp | 64 |
| Torque output, Nm | 91 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 68.5 |
| Piston stroke, mm | 67.5 |
| Compression ratio | 9.3 |
| Features | no |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.2 |
| Fuel type | petrol |
| Euro standards | EURO 3/4 |
| Fuel consumption, L/100 km (for Chevrolet Spark 2005) — city — highway — combined |
7.2 4.7 5.6 |
| Engine lifespan, km | ~200 000 |
| Weight, kg | – |
Disadvantages of the B10S1 engine
Although this engine rarely lasts longer than 200,000 kilometers, it is not regarded as problematic;
A notable decrease in cylinder compression is an indication of an impending overhaul;
Every 40,000 kilometers, the timing belt with a roller must be replaced; if it breaks, the valve will be bent;
Every 50,000 kilometers, valve clearances need to be adjusted; there are no hydraulic lifters; low-quality gasoline causes fuel injectors to clog and candles to quickly deteriorate.