The Mitsubishi 6B31 3.0-liter V-shaped 6-cylinder engine has been produced since 2006 and is installed only on two well-known models: the Outlander crossover and the Pajero Sport SUV. This power unit is considered the top in the line of gasoline engines of the Japanese concern.
The engine was installed on:
- Mitsubishi Outlander CW in 2006 – 2012;
- Mitsubishi Outlander GF since 2012;
- Mitsubishi Pajero Sport KH in 2010 – 2015;
- Mitsubishi Pajero Sport KS since 2015.
Specifications
Production years | since 2006 |
Displacement, cc | 2998 |
Fuel system | injector |
Power output, hp | 220 – 230 |
Torque output, Nm | 276 – 291 |
Cylinder block | aluminum V6 |
Block head | aluminum 24v |
Cylinder bore, mm | 87.6 |
Piston stroke, mm | 82.9 |
Compression ratio | 9.5-10.5 |
Features | no |
Hydraulic lifters | at exhaust camshaft |
Timing drive | belt |
Phase regulator | MIVEC |
Turbocharging | no |
Recommended engine oil | 5W-30 |
Engine oil capacity, liter | 4.5 |
Fuel type | petrol |
Euro standards | EURO 4 |
Fuel consumption, L/100 km (for Mitsubishi Outlander 2011) — city — highway — combined |
15.1 8.0 10.6 |
Engine lifespan, km | ~300 000 |
Weight, kg | 170 |
Disadvantages of the Mitsubishi 6B31 engine
- For engines of the first years of production, there was a recall on replacing the intake manifold flap;s
- The engine often suffers from leaks, usually the cause is cracked valve covers;
- Timing belt life of 90,000 km can be drastically reduced if oil gets on it;
- The most dangerous problem is the drop in oil pump performance to 120 thousand km;
- First, hydraulic lifters knock, if you do not pay attention, then the engine wedges;
- On a run of more than 200 – 250 thousand km, the camshafts and their bed are usually already worn out;
- The power unit supports last up to 50,000 km, the catalyst crumbles after 150,000 km.
Hydraulic lifters at exhaust camshaft
This is more understandable 🙂
Thank you!