The 1.8-liter gasoline engine Mazda BP-ME or B8 was produced from 1990 to 1996 and was installed on the 323 series, Familia, Protege models in BG bodies, as well as BH before restyling. This unit is referred to differently in many reference books, for example, as B8-ME or BP-SOHC.
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 323 BG in 1990 – 1994;
- Mazda 323 BH in 1994 – 1996;
- Mazda Familia BG in 1990 – 1994;
- Mazda Familia BH in 1994 – 1996;
- Mazda Protege BG in 1990 – 1994;
- Mazda Protege BH in 1994 – 1996.
Specifications
| Production years | 1990-1996 |
| Displacement, cc | 1839 |
| Fuel system | injector |
| Power output, hp | 100 – 115 |
| Torque output, Nm | 150 – 155 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 83 |
| Piston stroke, mm | 85 |
| Compression ratio | 8.9 |
| 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 2 |
| Fuel consumption, L/100 km (for Mazda Protege 1992) — city — highway — combined |
10.2 6.7 8.4 |
| Engine lifespan, km | ~320 000 |
| Weight, kg | 140.3 |
Disadvantages of the Mazda BP-ME engine
- This motor is famous for its reliability and worries only at high mileage;
- From low-quality oil, hydraulic lifters can knock, and even up to 50 thousand km;
- Due to contamination of the throttle valve, the idle speed of the engine often floats;
- According to the regulations, the timing belt changes every 60,000 km, but when it breaks, the valves do not bend;
- After 200,000 km, oil scraper rings often lie and lubricant consumption appears.
