From 1989 to 2005, the company produced the 1.5-liter 16-valve Mazda B5-DE engine, which was used in vehicles from Kia under the BFD index as well as models like the Eunos 100 and Familia. The 125 horsepower B5-ZE, the unit’s most potent variant, was only available in Japan.
B1, B3, B3-ME, B5, B5-DE, B5-ME, B6, B6-ME, B6-DE, BP, and BP-ME are all members of the B-engine family.
The engine was mounted on:
- Mazda 323 BG in 1989 – 1994;
- Mazda Autozam AZ-3 EC in 1991 – 1998;
- Mazda Eunos 100 BG in 1989 – 1994; Eunos Presso EC in 1991 – 1998;
- Mazda Familia BG in 1989 – 1994; Familia BH in 1994 – 1996.
Specifications
| Production years | 1989-2005 |
| Displacement, cc | 1498 |
| Fuel system | injector |
| Power output, hp | 105 – 120 |
| Torque output, Nm | 125 – 145 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 78 |
| Piston stroke, mm | 78.4 |
| Compression ratio | 9.2 – 9.5 |
| Features | DOHC |
| 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 2 |
| Fuel consumption, L/100 km (for Mazda Familia 1990) — city — highway — combined |
8.5 5.7 6.8 |
| Engine lifespan, km | ~350 000 |
| Weight, kg | 129.3 |
Disadvantages of the Mazda B5-DE engine
Owners of a straightforward and dependable engine don’t have many issues.
Discussions on specialized forums indicate that this is where the ignition system fails most frequently.
Hydraulic lifters can travel up to 100,000 kilometers and are not tolerant of cheap oil.
The valves do not bend here when the timing belt breaks, even though it is intended to last for about 60,000 kilometers.
Rings are a common sign of an oil burner on very long runs.