Produced between 2005 and 2010, the 2.2-liter Alfa Romeo 939A5000 or 159 2.2 JTS engine was fitted to several of the company’s well-known models, including the 159, Brera, and the comparable Spider. Actually, this power unit was an Opel Z22YH motor modified 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
Initially, this motor has accelerated carbon deposits on its valves;
If the injection pump fails, the engine won’t run faster than 3000 rpm;
The timing chain is distinguished by a relatively small resource, particularly its tensioner;
Remember to replace the water pump and balancer shaft with separate chains.
It is preferable to clean the crankcase ventilation system more frequently because it causes a lot of problems.