Hyundai Tucson / Sante Fe 2.7l V6 G6BA Engine
R24,500.00
The Hyundai G6BA (also known as the 2.7 Delta V6) is a naturally aspirated, 24-valve petrol engine. It was a mainstay for Hyundai in the mid-2000s, powering the Tucson (JM), Kia Sportage, and Hyundai Tiburon/Coupe. It is widely regarded as a smooth, “old-school” V6 that prioritises reliability and low-end torque over high-speed performance.
Technical Specifications
The G6BA is a compact 60-degree V6 designed to fit transversely (sideways) in front-wheel-drive based SUVs.
| Feature | Specification |
|---|---|
| Displacement | 2,656 cc (2.7L) |
| Configuration | 60° V6, 24-valve DOHC |
| Power Output | 127 kW (173 hp) @ 6,000 rpm |
| Maximum Torque | 241 Nm @ 4,000 rpm |
| Bore x Stroke | 86.7 mm x 75.0 mm (Short-stroke design) |
| Compression Ratio | 10.0:1 |
Key Design Features
- Hybrid Timing System: This is a “dual-drive” engine. The crankshaft drives the intake camshafts via a timing belt, while the exhaust camshafts are driven by small chains connected to the intake cams inside the cylinder heads.
- Construction: It features an aluminium alloy block and heads, making it relatively light for a V6 of its era.
- Variable Intake System (VIS): It uses a dual-stage intake manifold that changes the length of the air path. This helps provide better torque at low speeds while still allowing the engine to breathe at high RPM.
- Hydraulic Lifters: Unlike many smaller Hyundai engines, the G6BA uses hydraulic lash adjusters, meaning no manual valve adjustments are required.
Common Vehicle Applications
- Hyundai Tucson (First Gen): 2004–2009.
- Kia Sportage (JE/KM): 2004–2010.
- Hyundai Santa Fe (SM): 2001–2006.
- Hyundai Tiburon / Coupe: 2003–2008.
Maintenance & Known Issues
- Timing Belt Criticality: The timing belt must be changed every 90,000 km to 100,000 km. Because this is an interference engine, a belt snap will cause the valves to hit the pistons, resulting in a total engine rebuild.
- Spark Plug Access: Replacing the rear three spark plugs (Bank 1) is difficult because the upper intake manifold must be removed to reach them. Many owners neglect these rear plugs as a result.
- Oil Leaks: The valve cover gaskets are notorious for leaking oil onto the exhaust manifolds, which can cause a burning smell or even smoke from the engine bay.
- Fuel Consumption: By modern standards, the 2.7L V6 is “thirsty,” often averaging 11L–13L/100km in the Tucson, especially when paired with the 4-speed automatic transmission.
- Crankshaft Position Sensor: A common cause of sudden stalling or “no-start” issues when the engine is hot is a failing crank sensor.