The 2.2-liter prechamber diesel engine Mazda R2 was produced from 1983 to 2007 and was installed on a large number of commercial vehicles under the brands Mazda, Kia, Ford. After being equipped with the Common Rail system, this power unit received a new R2AA index.
The R-engine family also includes diesel engines: RF and RF‑T Di.
The engine was installed on:
- Mazda Bongo 3 in 1983 – 1999;
- Mazda Bongo 4 (SG) in 1999 – 2007;
- Mazda B-series in 1985 – 1993;
- Mazda E-series in 1983 – 2007.
|Power output, hp||70 – 79|
|Torque output, Nm||138 – 142|
|Cylinder block||cast iron R4|
|Block head||aluminum 8v|
|Cylinder bore, mm||86|
|Piston stroke, mm||94|
|Recommended engine oil||5W-30|
|Engine oil capacity, liter||6.5|
|Euro standards||EURO 1/2|
|Fuel consumption, L/100 km (for Mazda Bongo 2000)
|Engine lifespan, km||~320 000|
Disadvantages of the Mazda R2 2.2 engine
- All the problems of this simple and reliable diesel engine are associated with huge mileage;
- The weakest point of the unit is the aluminum cylinder head;
- Cracks around the prechambers are formed by 200,000 km, and it is not easy to buy another cylinder head;
- The timing belt is designed for 60 thousand km, and when it breaks the valve most often bends;
- Since there are no hydraulic lifters, the valves will have to be adjusted every 100,000 km.