GM F16D4 1.6L Engine: Specs, Problems, Reliability. The 1.6-liter Chevrolet engine named as the F16D4 engine is the result of the F16D3 evolution. This new engine was furnished with the variable valve timing system (VVT) and system what changes intake and exhaust channel lengths (variable intake manifold). The trouble with valves was solved. The Exhaust Gas Recirculation system (EGR) was also removed. These are big changes. As a result, we got more reliable and powerful engine.
Like the previous model, the engine has cast iron cylinder block with steel crankshaft and forged steel conrods, 16 valves and two overhead camshafts (DOHC) aluminum directly top of the engine block, multi-point electronic fuel injection and ignition system, timing belt (not a chain). By the way, this engine is almost a copy of the A16XER produced by Opel.
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Chevrolet 1.6 l F16D4 Engine Troubles and Reliability
- If you don’t consider the timing belt condition, in one day an engine disaster will happen – bent valves, crushed pistons, etc.
- The thermostat is the weakest point of GM engines, and the F16D4 is not an exception.
- Oil leaks from head cover, like on past model the F16D3.
- This engine does not have hydraulic tappets anymore. You need to adjust the valve gaps by yourself every 60,000 miles. But somebody thinks that’s a conveniences of the engine.
GM F16D4 1.6L Engine: Specs
| Manufacturer | GM DAT |
| Production years | 2008-present day |
| Cylinder block material | Cast Iron |
| Cylinder head material | Aluminum |
| Fuel type | Gasoline |
| Fuel system | Multi-point electronic fuel injection |
| Configuration | Inline |
| Number of cylinders | 4 |
| Valves per cylinder | 4 |
| Valvetrain layout | DOHC |
| Bore, mm | 79.0 |
| Stroke, mm | 81.5 |
| Displacement, cc | 1598 |
| Type of internal combustion engine | Four-stroke, naturally aspirated |
| Compression Ratio | 10.8 (11) |
| Power, hp | 115 (124) /6000 |
| Torque, lb ft | 114/3400 |
| Engine weight | – |
| Firing order | 1-3-4-2 |
| Engine oil weight | 5W-30, 5W-40 |
| Engine oil capacity, liter | 4.5 |
| Oil change interval, mile | 10,000 |
| Applications | Chevrolet Aveo, Chevrolet Cruze |