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.
Specifications
| Production years | 1983-2007 |
| Displacement, cc | 2184 |
| Fuel system | prechambers |
| 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 |
| Compression ratio | 22.9 |
| Features | SOHC |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 6.5 |
| Fuel type | diesel |
| Euro standards | EURO 1/2 |
| Fuel consumption, L/100 km (for Mazda Bongo 2000) — city — highway — combined |
9.2 6.4 7.4 |
| Engine lifespan, km | ~320 000 |
| Weight, kg | 190 |
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.
Nice engine
my R2 engine mention MA-R2-F1 what is F1 stand for?
R2 on Mazda engine what’s the meaning?
Which engine can I use to replace this R2
Mazda WL-T engine has almost the same space in the engine bay and the gearbox shifter should be around the same place within the cab. Just don’t turn up the boost and maintenance is the key. The engine’s weakness is excess heat and damages the head easily. This means you have to keep an eye on the cooling system.
Nice engine