Engine Ford RFA/RFB

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.


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
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.

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