From 1983 until 2007, the company assembled the Suzuki G10A 1.0-liter 3-cylinder engine for the Cultus and Swift models, as well as their knockoffs, including the Geo Metro and Chevrolet Sprint. A supercharged variant of the engine, designated G10T, was available in addition to atmospheric versions.
G-series engines include the G10A, G13B, G13BA, G13BB, G15A, G16A, and G16B.
Specifications
| Production years | 1983-2007 |
| Displacement, cc | 993 |
| Fuel system | carburetor / injector |
| Power output, hp | 48 – 55 (G10A) 70 – 82 (G10T) |
| Torque output, Nm | 77 – 79 (G10A) 107 – 120 (G10T) |
| Cylinder block | aluminum R3 |
| Block head | aluminum 6v |
| Cylinder bore, mm | 74 |
| Piston stroke, mm | 77 |
| Compression ratio | 9.5 (G10A) 8.3 (G10T) |
| Features | SOHC |
| Hydraulic lifters | no * |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no (G10A) IHI RHB31 (G10T) |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.3 |
| Fuel type | petrol |
| Euro standards | EURO 1/2 |
| Fuel consumption, L/100 km (for Suzuki Swift 2000) — city — highway — combined |
6.8 4.5 5.3 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 65 (without attachments) |
* – there was a version of the motor with hydraulic lifters.
The engine was installed on:
- Suzuki Cultus 1 (SA) in 1983 – 1988; Cultus 2 (SF) in 1988 – 2001;
- Suzuki Swift 1 (AA) in 1983 – 1989; Swift 2 (EA) in 1989 – 1995; Swift 2 (MA) in 1995 – 2003.
Disadvantages of the Suzuki G10A engine
This power unit has a long lifespan and no issues if it is not overheated.
Cracks in the aluminum block’s cooling jacket or cylinder head result from overheating.
Cast-iron liner wear is a common cause of oil consumption at high mileage.
An antiquated ignition system can cause a lot of issues for owners.
The valve clearance needs to be adjusted because the majority of versions lack hydraulic lifters.