The 2.4-liter Hyundai G4KG or Grand Starex 2.4 gasoline engine has been produced since 2007 and is installed on a wide range of commercial vehicles, including Starex minibuses. There is a gas version of this unit with a capacity of 159 hp under the index L4KB or 2.4 LPi.
In 2007, a 2.4-liter engine for rear-wheel drive models appeared in the Theta I line, which differed from a similar unit with the G4KC index in the absence of a block of balancers. The rest of the design is identical: there is an aluminum cylinder block with cast-iron liners, a 16-valve head without hydraulic lifters, an inlet dephaser and a timing chain drive. Also, the G4KG motor has a different intake manifold and of course without a geometry change system.
The modification of this engine with the index L4KB or 2.4 LPi, designed to run on liquefied gas, is widely used. This modification has slightly reduced power to 159 hp.
Theta 2.4L family: G4KC, G4KE, G4KG, G4KJ, G4KK.
Specifications
| Production years | since 2007 |
| Displacement, cc | 2359 |
| Fuel system | distributed injection |
| Power output, hp | 170 – 175 |
| Torque output, Nm | 225 – 230 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 88 |
| Piston stroke, mm | 97 |
| Compression ratio | 10.5 |
| Hydraulic lifters | no |
| Timing drive | chain |
| Phase regulator | yes |
| Turbocharging | no |
| Recommended engine oil | 5W-30, 5W-40 |
| Engine oil capacity, liter | 5.1 |
| Fuel type | petrol |
| Euro standards | EURO 4/5 |
| Fuel consumption, L/100 km (for Hyundai Grand Starex 2010) — city — highway — combined |
14.4 9.6 11.4 |
| Engine lifespan, km | ~400 000 |
| Weight, kg | 130.9 |
The engine was installed on:
- Hyundai Starex 2 (TQ) since 2007.
Disadvantages of the Hyundai G4KG engine
- The oil pump here is simple without balancers, so the liners do not rotate so often, but the scuffs in the cylinders occur regularly. In car services, they believe that the reason for their appearance is ceramic dust that enters the combustion chambers from the collector.
- The culprits for the appearance of a strong oil burner can be not only scuffing in the cylinders, but also critical wear and just an ellipse of cast-iron liners. The aluminum block with an open cooling jacket holds the geometry very poorly and simply leads over time.
- Despite the fact that, according to the manufacturer, timing chains are considered maintenance-free, in fact, their resource does not exceed 200,000 km, and sometimes they stretch even earlier. Around the same run, the phase regulator also has to be replaced.
- Another weak point of this unit is the short-lived gaskets and seals. Usually grease oozes out from under the valve covers or through the crankshaft oil seals.
Frequently asked questions about the Hyundai G4KG
How much power does the Hyundai G4KG make?
The Hyundai G4KG develops 170 - 175 hp and 225 - 230 Nm of torque.
How much oil does the Hyundai G4KG take and which one?
Engine oil capacity: 5.1 liters. Recommended oil: 5W-30, 5W-40.
Does the Hyundai G4KG have a timing belt or chain?
The Hyundai G4KG uses a timing chain.
Is the Hyundai G4KG turbocharged?
No, the Hyundai G4KG is naturally aspirated.
Does the Hyundai G4KG 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 G4KG last?
The typical lifespan of the Hyundai G4KG is ~400 000 km with proper maintenance.
What is the fuel consumption of the Hyundai G4KG?
Hyundai Grand Starex 2010: city 14.4, highway 9.6, combined 11.4 L/100 km.
What cars was the Hyundai G4KG installed on?
Hyundai Starex 2 (TQ) since 2007.
What are the common problems of the Hyundai G4KG?
The oil pump here is simple without balancers, so the liners do not rotate so often, but the scuffs in the cylinders occur regularly. In car services, they believe that the reason for their appearance is ceramic dust that enters the combustion chambers from the collector. The culprits for the appearance of a strong oil burner can be not only scuffing in the cylinders, but also critical wear and just an ellipse of cast-iron liners. The aluminum block with an open cooling jacket holds the geometry very poorly and simply leads over time. All known problems.
