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.
B-engine family: B1, B3, B3-ME, B5, B5-DE, B5-ME, B6, B6-ME, B6-DE, BP, BP-ME.
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 |
The engine was installed on:
- Mazda 323 BG in 1990 – 1994, 323 BH in 1994 – 1996;
- Mazda Familia BG in 1990 – 1994, Familia BH in 1994 – 1996;
- Mazda Protege BG in 1990 – 1994, Protege BH in 1994 – 1996.
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.
Frequently asked questions about the Mazda BP-ME/B8
How much power does the Mazda BP-ME/B8 make?
The Mazda BP-ME/B8 develops 100 - 115 hp and 150 - 155 Nm of torque.
How much oil does the Mazda BP-ME/B8 take and which one?
Engine oil capacity: 3.2 liters. Recommended oil: 5W-30.
Does the Mazda BP-ME/B8 have a timing belt or chain?
The Mazda BP-ME/B8 uses a timing belt.
Is the Mazda BP-ME/B8 turbocharged?
No, the Mazda BP-ME/B8 is naturally aspirated.
Does the Mazda BP-ME/B8 need valve clearance adjustment?
No, the Mazda BP-ME/B8 has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Mazda BP-ME/B8 last?
The typical lifespan of the Mazda BP-ME/B8 is ~320 000 km with proper maintenance.
What is the fuel consumption of the Mazda BP-ME/B8?
Mazda Protege 1992: city 10.2, highway 6.7, combined 8.4 L/100 km.
What cars was the Mazda BP-ME/B8 installed on?
Mazda 323 BG in 1990 - 1994, 323 BH in 1994 - 1996; Mazda Familia BG in 1990 - 1994, Familia BH in 1994 - 1996; Mazda Protege BG in 1990 - 1994, Protege BH in 1994 - 1996.
What are the common problems of the Mazda BP-ME/B8?
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. All known problems.
