The 1.3-liter Mazda B3 gasoline engine was assembled at a plant in Japan from 1987 to 2005 and was installed on numerous versions of the 121 and 323 models, as well as on the Kia Rio under the A3E index. There were 8 and 16 valve versions of the engine, both with a carburetor and an injector.
The B-engine family includes: B1, B3, B3‑ME, B5, B5‑DE, B5‑ME, B6, B6‑ME, B6‑DE, BP, BP‑ME.
The engine was installed on:
- Mazda 121 DA in 1987 – 1991; 121 DB in 1991 – 1996; 121 DW in 1996 – 2002;
- Mazda Autozam Revue DB in 1990 – 1998;
- Mazda 323 BF in 1987 – 1989; 323 BG in 1989 – 1994; 323 BH in 1994 – 1998; 323 BJ in 1998 – 2003;
- Mazda Familia BF in 1987 – 1989; Familia BG in 1989 – 1994;
- Kia Rio 1 (DC) in 1999 – 2005;
- Kia Pride 1 (DA) in 1987 – 2000.
Specifications
| Production years | 1987-2005 |
| Displacement, cc | 1323 |
| Fuel system | carburetor / injector (8-valve modifications) injector (16-valve modifications) |
| Power output, hp | 55 – 65 (8-valve modifications) 65 – 75 (16-valve modifications) |
| Torque output, Nm | 95 – 105 (8-valve modifications) 100 – 110 (16-valve modifications) |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v (8-valve modifications) aluminum 16v (16-valve modifications) |
| Cylinder bore, mm | 71 |
| Piston stroke, mm | 83.6 |
| Compression ratio | 8.9 – 9.4 (8-valve modifications) 9.1 – 9.4 (16-valve modifications) |
| Features | SOHC |
| Hydraulic lifters | yes |
| 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 1/2/3 (8-valve modifications) EURO 2/3 (16-valve modifications) |
| Fuel consumption, L/100 km (for Mazda 323 1996) — city — highway — combined |
9.5 6.2 7.8 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 115.8 |
Disadvantages of the Mazda B3 1.3l engine
- Most often, problems with the ignition system are discussed in specialized forums.
- In the version with hydraulic compensators, saving on oil leads to their failure.
- Another weak point of the motor is the oil pump pressure relief valve.
- The timing belt is designed for about 60 thousand km, but when it breaks, the valves do not bend here.
- On long runs, oil consumption of 1 liter per 1000 km is often found.
