The 1.3-liter Hyundai G4DG engine was produced from 1985 to 1995 under license from Mitsubishi and was essentially a complete copy of their popular 8-valve power unit under the 4G13 index. In addition to the injection version, there is often a modification of the G4AG equipped with a carburetor.
Orion family: G4DG, G4DJ.
Specifications
| Production years | 1985-1995 |
| Displacement, cc | 1298 |
| Fuel system | injector |
| Power output, hp | 65 – 75 |
| Torque output, Nm | 100 – 120 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 71 |
| Piston stroke, mm | 82 |
| Compression ratio | 9.7 |
| Features | no |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 10W-40 |
| Engine oil capacity, liter | 3.3 |
| Fuel type | petrol |
| Euro standards | EURO 1/2 |
| Fuel consumption, L/100 km (for Hyundai Pony 1993) — city — highway — combined |
8.5 5.7 7.7 |
| Engine lifespan, km | ~200 000 |
| Weight, kg | 112 (without attachments) |
The engine was installed on:
- Hyundai Excel 1 (X1) in 1985 – 1989, Excel 2 (X2) in 1989 – 1995;
- Hyundai Pony 3 (X1) in 1985 – 1989, Pony 4 (X2) in 1989 – 1994.
Disadvantages of the Hyundai G4DG engine
- The main problem of the engine is oil consumption due to stuck piston rings;
- Floating engine speeds are regularly encountered due to throttle wear;
- Monitor the condition of the timing belt, since when it breaks, the valves usually bend here;
- Many Hyundai owners with such a unit complain about difficult starting in winter;
- Also, on specialized forums, an unreliable gas pump and weak engine mounts are often scolded.
Frequently asked questions about the Hyundai G4DG
How much power does the Hyundai G4DG make?
The Hyundai G4DG develops 65 - 75 hp and 100 - 120 Nm of torque.
How much oil does the Hyundai G4DG take and which one?
Engine oil capacity: 3.3 liters. Recommended oil: 10W-40.
Does the Hyundai G4DG have a timing belt or chain?
The Hyundai G4DG uses a timing belt.
Is the Hyundai G4DG turbocharged?
No, the Hyundai G4DG is naturally aspirated.
Does the Hyundai G4DG 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 G4DG last?
The typical lifespan of the Hyundai G4DG is ~200 000 km with proper maintenance.
What is the fuel consumption of the Hyundai G4DG?
Hyundai Pony 1993: city 8.5, highway 5.7, combined 7.7 L/100 km.
What cars was the Hyundai G4DG installed on?
Hyundai Excel 1 (X1) in 1985 - 1989, Excel 2 (X2) in 1989 - 1995; Hyundai Pony 3 (X1) in 1985 - 1989, Pony 4 (X2) in 1989 - 1994.
What are the common problems of the Hyundai G4DG?
The main problem of the engine is oil consumption due to stuck piston rings. Floating engine speeds are regularly encountered due to throttle wear. All known problems.
What engines are related to the Hyundai G4DG?
Orion family: G4DJ.
