The 2.5-liter Ford SEA or 2.5 Duratec V6 engine was produced from 1994 to 1999 in the USA and was installed only on the first two generations of the Mondeo model in its top modifications. To fit into the tax in 1999, the unit replaced the SEB engine with a volume of just under 2.5 liters.
Duratec V6 family:
2.5 L – SEA, SEB, SGA, LCBD;
3.0 L – REBA, MEBA.
Specifications
| Production years | 1994-1999 |
| Displacement, cc | 2544 |
| Fuel system | distributed injection |
| Power output, hp | 170 |
| Torque output, Nm | 220 |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 82.4 |
| Piston stroke, mm | 79.5 |
| Compression ratio | 9.7 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.6 |
| Fuel type | petrol |
| Euro standards | EURO 3 |
| Fuel consumption, L/100 km (for Ford Mondeo 1998) — city — highway — combined |
13.6 7.1 9.8 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 170 |
The engine was installed on:
- Ford Mondeo Mk1 in 1994 – 1996, Mondeo Mk2 in 1996 – 1999.
Disadvantages of the Ford SEA engine
- The units of this series are very reliable, but too voracious for such power;
- The main motor problems are related to overheating, usually due to a pump failure;
- The second most common here is the failure of the fuel pump;
- You need to clean the crankcase ventilation regularly or the engine will sweat oil;
- Timing chain tensioners and hydraulic lifters are afraid of poor-quality lubrication.
Frequently asked questions about the Ford SEA
How much power does the Ford SEA make?
The Ford SEA develops 170 hp and 220 Nm of torque.
How much oil does the Ford SEA take and which one?
Engine oil capacity: 5.6 liters. Recommended oil: 5W-30.
Does the Ford SEA have a timing belt or chain?
The Ford SEA uses a timing chain.
Is the Ford SEA turbocharged?
No, the Ford SEA is naturally aspirated.
Does the Ford SEA need valve clearance adjustment?
No, the Ford SEA has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Ford SEA last?
The typical lifespan of the Ford SEA is ~300 000 km with proper maintenance.
What is the fuel consumption of the Ford SEA?
Ford Mondeo 1998: city 13.6, highway 7.1, combined 9.8 L/100 km.
What cars was the Ford SEA installed on?
Ford Mondeo Mk1 in 1994 - 1996, Mondeo Mk2 in 1996 - 1999.
What are the common problems of the Ford SEA?
The units of this series are very reliable, but too voracious for such power. The main motor problems are related to overheating, usually due to a pump failure. All known problems.
