The 2.2-liter Alfa Romeo 939A5000 or 159 2.2 JTS engine was produced from 2005 to 2010 and was installed on a number of well-known models of the concern such as 159, Brera and the similar Spider. In fact, this power unit was a modification of the Opel Z22YH motor with phase regulators.
The JTS-engine series: 937A1000, 939A5000, 939A000.
Specifications
| Production years | 2005-2010 |
| Displacement, cc | 2198 |
| Fuel system | direct injection |
| Power output, hp | 185 |
| Torque output, Nm | 230 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 94.6 |
| Compression ratio | 11.3 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | on both shafts |
| Turbocharging | no |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 5.4 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Alfa Romeo 159 2008) — city — highway — combined |
12.8 7.1 9.2 |
| Engine lifespan, km | ~220 000 |
| Weight, kg | 155 |
The engine was installed on:
- Alfa Romeo 159 (Type 939) in 2005 – 2009;
- Alfa Romeo Brera I (Type 939) in 2005 – 2009;
- Alfa Romeo Spider VI (Type 939) in 2006 – 2010.
Disadvantages of the Alfa Romeo 939A5000 engine
- First of all, this motor suffers from accelerated carbon deposits on the valves;
- The injection pump does not last long, if it fails, the engine does not spin above 3000 rpm;
- The timing chain and especially its tensioner are distinguished by a rather modest resource;
- When replacing, do not forget about a separate chain for the water pump and balancer shaft;
- A lot of trouble delivers the crankcase ventilation system and it is better to clean it more often.
