The company assembled the 1.5-liter 8-valve Mazda B5 engine in Japan from 1987 to 1994 and installed it on various modifications of the Familia model in the back of the BF, including the Etude coupe. In addition to the carburetor, there was a version with an injector, but only on Ford Festiva cars.
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 Etude BF in 1988 – 1989;
- Mazda Familia BF in 1987 – 1994.
|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)
|Recommended engine oil||5W-30|
|Engine oil capacity, liter||3.0|
|Euro standards||EURO 0 (carburetor modifications)
EURO 1 (injection modification)
|Fuel consumption, L/100 km (for Mazda Familia 1989)
|Engine lifespan, km||~250 000|
Disadvantages of the Mazda B5 1.5l engine
- This is a very simple and reliable motor, all its problems are due to old age;
- The original carburetor is difficult to set up, but most often there is already an analogue;
- On specialized forums, they most often complain about lubricant leaks and low spark plug life;
- According to the regulations, the timing belt changes every 60,000 km, but when it breaks, the valves do not bend;
- Hydraulic lifters do not like low-quality oil and can knock even up to 100,000 km.