The company assembled the Hyundai D4BF 2.5-liter turbo diesel engine from 1991 to 2004 and installed it on the popular H1, Starex and Grace minibuses, as well as Galloper SUVs. This motor, in essence, was only one of the modifications of the Mitsubishi 4D56 turbodiesel.
In 1993, a turbocharged power unit appeared in the Hyundai diesel family, which in fact was another clone of the Mitsubishi 4D56 prechamber diesel engine. It has a cast-iron cylinder block and an aluminum 8-valve head without hydraulic lifters, a timing belt drive and a fuel pump from Zexel, as well as a block of balancers with its own belt. The Garrett GT1749S turbine was most often responsible for supercharging this unit, but analogues were also installed.
This diesel engine had a large number of different modifications, and this is especially true for commercial vehicles.
D4B family: D4BA, D4BB, D4BF, D4BH.
Specifications
| Production years | 1991-2004 |
| Displacement, cc | 2477 |
| Fuel system | prechambers |
| Power output, hp | 80 – 85 |
| Torque output, Nm | 194 – 208 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 91.1 |
| Piston stroke, mm | 95 |
| Compression ratio | 21 |
| Hydraulic lifters | no |
| Timing drive | belt |
| Turbocharging | yes |
| Recommended engine oil | 5W-40, 10W-40 |
| Engine oil capacity, liter | 6.5 |
| Fuel type | diesel |
| Euro standards | EURO 1/2 |
| Fuel consumption, L/100 km (for Hyundai Grace 2000) — city — highway — combined |
12.6 9.0 10.3 |
| Engine lifespan, km | ~450 000 |
| Weight, kg | 204.8 |
The engine was installed on:
- Hyundai Galloper 1 (JI) in 1993 – 1997, Galloper 2 (JK) in 1997 – 2003;
- Hyundai Grace 1 (P1) in 1993 – 2003;
- Hyundai Starex 1 (A1) in 1997 – 2004.
Disadvantages of the Hyundai D4BF engine
- Most versions of such diesel engines were equipped with a Zexel VE4 distribution injection pump, that is, a clone of the reliable Bosch VE fuel pump. But at high mileage, there are often problems with starting a warm engine due to banal mechanical wear. Owners are also often faced with the need to replace injector nozzles.
- According to the official regulations, the timing belt changes every 90,000 kilometers, but often it bursts much earlier, and especially if you do not tighten it every 30,000 km. Also, the balance shaft belt can break here, and at the same time it usually falls under the timing belt and it also breaks. It’s good that when it breaks, only the rocker breaks off.
- This diesel categorically does not tolerate overheating and the cylinder head gasket immediately breaks through it. In this case, changing the gasket is indispensable and it is necessary to grind the mating surfaces. Also, on long runs, cracks are often found around the prechambers or valves, and most often they cannot be welded. And such a cylinder head is very expensive.
- The weak points of such a diesel power unit also include a vacuum pump, a crankshaft, which often bursts when driving for a long time at low engine speeds, a crankshaft key, it simply cuts off and the attachment drive stops, as well as unreliable seals, so the oil constantly climbs and from everywhere. And do not forget to check the valve clearance every 20,000 km or they will simply burn out.
Frequently asked questions about the Hyundai D4BF
How much power does the Hyundai D4BF make?
The Hyundai D4BF develops 80 - 85 hp and 194 - 208 Nm of torque.
How much oil does the Hyundai D4BF take and which one?
Engine oil capacity: 6.5 liters. Recommended oil: 5W-40, 10W-40.
Does the Hyundai D4BF have a timing belt or chain?
The Hyundai D4BF uses a timing belt.
Is the Hyundai D4BF turbocharged?
Yes, the Hyundai D4BF is turbocharged.
Does the Hyundai D4BF need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Hyundai D4BF last?
The typical lifespan of the Hyundai D4BF is ~450 000 km with proper maintenance.
What is the fuel consumption of the Hyundai D4BF?
Hyundai Grace 2000: city 12.6, highway 9.0, combined 10.3 L/100 km.
What cars was the Hyundai D4BF installed on?
Hyundai Galloper 1 (JI) in 1993 - 1997, Galloper 2 (JK) in 1997 - 2003; Hyundai Grace 1 (P1) in 1993 - 2003; Hyundai Starex 1 (A1) in 1997 - 2004.
What are the common problems of the Hyundai D4BF?
Most versions of such diesel engines were equipped with a Zexel VE4 distribution injection pump, that is, a clone of the reliable Bosch VE fuel pump. But at high mileage, there are often problems with starting a warm engine due to banal mechanical wear. Owners are also often faced with the need to replace injector nozzles. According to the official regulations, the timing belt changes every 90,000 kilometers, but often it bursts much earlier, and especially if you do not tighten it every 30,000 km. Also, the balance shaft belt can break here, and at the same time it usually falls under the timing belt and it also breaks. It's good that when it breaks, only the rocker breaks off. All known problems.
