The 1.0-liter Chevrolet B10S1 or LA2 engine was produced from 2002 to 2009 in South Korea and was installed on the smallest models of the company, such as Spark or Matiz. The version of the power unit before 2004 is seriously different and is often referred to simply as the B10S.
B family: B10S1, B10D1, B12S1, B12D1, B12D2, B15D2.
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 | 105 |
The engine was installed on:
- Chevrolet Spark M200 in 2005 – 2009;
- Daewoo Matiz in 2002 – 2009.
Disadvantages of the B10S1 engine
- This engine is not considered problematic, but its life rarely exceeds 200,000 km;
- A sign of an imminent overhaul is a significant drop in compression in the cylinders;
- The timing belt with a roller needs to be changed every 40,000 km, otherwise it will bend the valve if it breaks;
- Valve clearances require adjustment every 50,000 km, there are no hydraulic lifters;
- From low-quality gasoline, candles quickly deteriorate, fuel injectors clog.
Frequently asked questions about the Chevrolet B10S1
How much power does the Chevrolet B10S1 make?
The Chevrolet B10S1 develops 64 hp and 91 Nm of torque.
How much oil does the Chevrolet B10S1 take and which one?
Engine oil capacity: 3.2 liters. Recommended oil: 5W-30.
Does the Chevrolet B10S1 have a timing belt or chain?
The Chevrolet B10S1 uses a timing belt.
Is the Chevrolet B10S1 turbocharged?
No, the Chevrolet B10S1 is naturally aspirated.
Does the Chevrolet B10S1 need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Chevrolet B10S1 last?
The typical lifespan of the Chevrolet B10S1 is ~200 000 km with proper maintenance.
What is the fuel consumption of the Chevrolet B10S1?
Chevrolet Spark 2005: city 7.2, highway 4.7, combined 5.6 L/100 km.
What cars was the Chevrolet B10S1 installed on?
Chevrolet Spark M200 in 2005 - 2009; Daewoo Matiz in 2002 - 2009.
What are the common problems of the Chevrolet B10S1?
This engine is not considered problematic, but its life rarely exceeds 200,000 km. A sign of an imminent overhaul is a significant drop in compression in the cylinders. All known problems.
