From 1987 to 1994, the company assembled the 1.5-liter 8-valve Mazda B5 engine in Japan and fitted it to the rear of the BF on a number of Familia model modifications, including the Etude coupe. There was a version with an injector in addition to the carburetor, but it was limited to Ford Festiva vehicles.
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 Etude BF in 1988 – 1989;
- Mazda Familia BF in 1987 – 1994.
Specifications
| Production years | 1987-1994 |
| Displacement, cc | 1498 |
| Fuel system | carburetor injector |
| Power output, hp | 73 – 82 (carburetor modifications) 88 (injection modification) |
| Torque output, Nm | 112 – 120 (carburetor modifications) 135 (injection modification) |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 78 |
| Piston stroke, mm | 78.4 |
| Compression ratio | 8.6 (carburetor modifications) 9.1 (injection modification) |
| Features | SOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.0 |
| Fuel type | petrol |
| Euro standards | EURO 0 (carburetor modifications) EURO 1 (injection modification) |
| Fuel consumption, L/100 km (for Mazda Familia 1989) — city — highway — combined |
9.9 6.5 8.1 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 121.7 |
Disadvantages of the Mazda B5 1.5l engine
This motor is very straightforward and dependable; all of its issues stem from aging;
Although the original carburetor is challenging to install, an analog is typically already available;
They frequently complain about low spark plug life and lubricant leaks on specialized forums;
Regulations state that the timing belt must be replaced every 60,000 kilometers, but when it breaks, the valves do not bend; hydraulic lifters can knock up to 100,000 kilometers and dislike low-quality oil.