Only a charged version of the well-liked Focus model was equipped with the 2.0-liter Ford ALDA or 2.0 Duratec ST170 engine, which was manufactured between 2002 and 2004 under the ST170 index. In essence, this power unit was an improved Zetec-E motor.
DURATEC ST/RS family:
2.0 L – ALDA, HMDA;
2.5 L – HUBA, HYDA, HYDB, HUWA, JZDA.
The engine was installed on:
- Ford Focus ST Mk1 in 2002 – 2004.
Specifications
| Production years | 2002-2004 |
| Displacement, cc | 1988 |
| Fuel system | distributed injection |
| Power output, hp | 173 |
| Torque output, Nm | 196 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 84.8 |
| Piston stroke, mm | 88 |
| Compression ratio | 10.2 |
| Features | no |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | VCT, intake |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.35 |
| Fuel type | petrol |
| Euro standards | EURO 3 |
| Fuel consumption, L/100 km (for Ford Focus ST170 2004) — city — highway — combined |
11.9 7.5 9.1 |
| Engine lifespan, km | ~275 000 |
Disadvantages of the ALDA engine
The engine’s primary issues are related to using subpar gasoline;
Here, candles, their coils, and a gasoline pump rapidly fail due to poor fuel;
Although the timing belt is intended to last 120,000 kilometers, it occasionally wears out twice as quickly;
A low-hanging aluminum pallet is easily distorted by any obstruction;
You have to periodically adjust the valves because there are no hydraulic lifters.