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.
The Orion family also includes engines: G4DJ.
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.
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) |
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.
