The 1.8-liter Ford RFA / RFB or 1.8 Endura-DE engine was produced from 1990 to 1993 and was installed on the second generation of the popular Sierra model in the restyled version. This power unit had low reliability, which earned it a bad reputation.
The Endura-DE line also includes internal combustion engines: RTK, RVA and RFN.
The engine was installed on:
- Ford Sierra Mk2 in 1990 – 1993.
Specifications
| Production years | 1990-1993 |
| Displacement, cc | 1753 |
| Fuel system | prechamber |
| Power output, hp | 75 |
| Torque output, Nm | 152 |
| Cylinder block | cast iron R4 |
| Block head | cast iron 8v |
| Cylinder bore, mm | 82.5 |
| Piston stroke, mm | 82 |
| Compression ratio | 21.5 |
| Features | no |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | Garrett |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 5.0 |
| Fuel type | diesel |
| Euro standards | EURO 1 |
| Fuel consumption, L/100 km (for Ford Sierra 1991) — city — highway — combined |
8.7 4.9 6.4 |
| Engine lifespan, km | ~220 000 |
Disadvantages of the Ford RFA/RFB engine
- The small resource of the timing belt often results in its breakage and bending of the valves;
- The second most popular problem is unstable operation in severe frosts;
- Oil leaks occur regularly, most often at the junction of the upper and lower parts of the block;
- Sierra owners often experience ring wear in the fourth cylinder of the engine;
- The advantage of this unit is perhaps undemanding to the quality of fuel.
