What is the reason for blowing the L90 Or LOGAN oil filter?
Maybe it has happened to each of us, when checking and visiting the condition of the car engine, you notice that it is swollen above the oil filter or around it. Since no damage other than the deformation of the filter is evident, the blame is often pointed at the filter manufacturers and it is believed that the product has a manufacturing defect. But most of the time it is not. So what is the cause of blowing the car oil filter
When things go right
Under normal conditions, oil is introduced by the oil pump throughout the engine in order to lubricate and reduce the friction of the moving parts of the car, as well as to cool the various internal components of the engine.
High flow from the oil pump causes the pressure relief valve to open
And as a result, the system pressure is adjusted.
Every car has a predefined normal oil pressure that is set by the car manufacturer and controlled using a pressure relief valve. A pressure relief valve is usually located on the oil pump, where it opens and closes to regulate oil flow.
When there is a problem in the car system
The pressure relief valve is stuck open, allowing oil to return to the sump.
When the valve is stuck in the open position, the vehicle may experience low oil pressure, as oil flow immediately returns to the oil tank. When the valve is stuck in the closed position, the lubrication system can be affected by the maximum flow rate of the oil pump or actually increase the oil pressure.
The pressure relief valve is stuck closed and allows the full volume of pump oil to reach the filter.
Since the oil filter is located after the pump, it is often exposed to uncontrolled increases in oil pressure. If this happens, the filters begin to deform or “swell” which, if not corrected, may cause the filter baseplate to bend and allow the washer to shift. A displaced gasket leads to rapid loss of oil, which can lead to the destruction of the car’s engine.
A swollen or bloated oil filter is a warning sign that the system’s pressure relief valve has failed at some point. In any case, the sticking valve must be repaired to prevent damage to the filter and possibly the car’s engine.
Leave a Reply