Kia Picanto / Rio 1.2L G4LA non vvti engine
R16,500.00
The Kia Picanto 1.2L G4LA (non-VVT) is a 4-cylinder petrol engine from the Kappa family. In the Picanto (notably the TA generation), this 1.25-litre unit was the “big” engine option, providing a significant boost in refinement and highway capability over the 3-cylinder 1.0L version.
Technical Specifications
This version of the G4LA is a “pre-dual CVVT” model, meaning it lacks the variable valve timing phasers found on later 2011+ facelift versions.
| Feature | Specification |
|---|---|
| Displacement | 1,248 cc |
| Configuration | Inline 4-cylinder, 16-valve DOHC |
| Power Output | 62 kW (84 hp) to 64 kW (87 hp) @ 6,000 rpm |
| Maximum Torque | 120 Nm @ 4,000 rpm |
| Bore x Stroke | 71.0 mm x 78.8 mm |
| Compression Ratio | 10.5:1 |
Key Design Features
- Timing System: It features a silent timing chain drive. Unlike the older Kia Picanto engines (G4HE) which used belts, the G4LA chain is designed to be maintenance-free for the life of the engine.
- Construction: Lightweight all-aluminium block and cylinder head. It uses a “ladder frame” construction for the lower block to increase rigidity and reduce vibrations.
- Offset Crankshaft: The crankshaft is offset by 11mm from the cylinder bore axis. This reduces the side-thrust force on the pistons, lowering friction and improving fuel economy.
- Maintenance Simplicity: Without the VVT solenoids, the top end of the engine is less complex, making it cheaper to repair if the cylinder head needs to be removed.
Common Vehicle Applications
- Kia Picanto (TA): 2011–2015 (Early models).
- Kia Rio (UB): 2011–2014 (Entry-level 1.25L variants).
Maintenance & Known Issues
- Oil Maintenance: It is highly sensitive to oil quality. Use 5W-30 synthetic oil to ensure the hydraulic timing chain tensioner stays clean. A “rattling” sound on startup usually indicates a clogged tensioner or a stretched chain due to late oil changes.
- Spark Plugs: These are deep-seated; ensure the “O-rings” on the ignition coils are in good condition to prevent oil from leaking into the spark plug wells.
- Cooling System: The plastic coolant flange on the side of the head is a known weak point. It can crack with age, leading to slow coolant loss and potential overheating.
- Idling Issues: Carbon buildup on the throttle body can cause the engine to dip in RPM or stall when coming to a stop. A simple cleaning usually fixes this.