

This makes it difficult to access the elements of the engine itself and attachments.Īlso, some experts point out that despite the rather large resource of the boxer engine, the presence and operation of the pistons in a horizontal position leads to the fact that the cylinder walls wear out unevenly. Still, such engines require a lot of space in the engine compartment.
BOXER 6 ENGINE SERIES
The fact is that in order to carry out a series of manipulations, the engine must simply be removed. If we touch upon the shortcomings of the boxer engine, then the complexity of its maintenance and the high cost of repairs come to the fore, especially in the CIS. It turns out that the boxer engine runs smoothly, without vibrations, is on the same axis as the gearbox and, thanks to this, it gives out more power, a car with such an engine is better controlled, and the level of passive safety is increased. Also, a downward shift in the center of gravity when using this type of internal combustion engine provides improved handling and makes the car more stable.Įven in the device of this type of engine, the crankshaft is mounted on a smaller number of main plain bearings, as a result, the total weight of the engine is reduced.

Passive safety is also worth noting, since the boxer engine“goes” down better during a frontal impact, thereby avoiding significant deformation of the driver’s capsule. usually more noisy and vibration-loaded compared to gasoline counterparts. It’s no secret that even modern diesel engines such as TDI, etc. If we talk about what advantages of a boxer engine can attract the attention of motorists against the background of other developments, then it is worth noting the low center of gravity and the almost complete absence of vibrations during the operation of such an internal combustion engine in different modes.Īs for the diesel version, which at the same time also promises significant fuel savings, then the minimum of vibrations allows us to count on a significant increase in comfort during the operation of a diesel car. Problems and Reliability of The Boxer Engine The specified boxer diesel engine was planned to be installed under the hoods of the Subaru Legacy and Outback, as well as to launch the legendary Subaru Forester in a diesel version. A variable geometry turbine was used as a turbocharger, which allowed the engine to almost completely get rid of the turbo lag effect and provide confident traction in a wide speed range.

The engine was also equipped with a Common Rail fuel injection system and a turbocharger was installed. As you know, it is the moment characteristic, and not power, that plays a paramount role. The diesel boxer four-cylinder engine received a displacement of 2.0 liters, power was 150 hp, and the torque indicator was recorded at an impressive mark of 350 Nm. Moreover, the Japanese then generally introduced the world’s first diesel boxer, since no automaker had previously produced such an engine. In 2008, the appearance of a boxer diesel engine was noted, which was serially installed on the Subaru model. Given these features, boxer internal combustion engines are mass-produced by only a few manufacturers, among which Subaru engineers have advanced the furthest in this direction. These engines are also more complicated than in-line ones, since they have two cylinder heads, each with its own separate gasket and manifolds.Īlso, the boxer has a larger number of camshafts and a complex scheme for implementing their drive. These ICEs get an even number of cylinders, with 4 and 6 cylinder options being the most common.Īs for design features, in such an engine, each piston with a connecting rod is attached to a separate crankshaft crankpin. Subaru’s boxer engine is also called the “boxer” due to the unique movement of the pistons. This means that if one piston is at TDC, the other goes down at BDC.

Visually, such internal combustion engines will be similar, however, in a V-shaped engine, adjacent pistons and connecting rods are located on the same crankpin. It is important to understand that a boxer engine is different from a V-engine, which can also have a similar camber angle.
