Engine Mazda BP-ME/B8

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.


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
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.

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