2. The oil alarm is damaged, the line is loose, and the oil pump doesn't work well.
3. Wear and leakage of spindle bearing or connecting rod bearing.
4, oil, pipeline leakage phenomenon.
Extended data:
Only normal oil pressure can ensure that oil is delivered to the surfaces of all friction parts of the engine. Too high or too low will affect the normal operation of the engine and even cause damage to engine parts. Therefore, when the oil lamp gives an alarm, it should stop immediately to find out the reason, and then it can continue to work after troubleshooting.
The oil lamp may give an alarm for the following reasons:
1, the oil quantity is insufficient, so that the oil quantity of the oil pump is reduced or the intake air cannot pump oil, resulting in a drop in oil pressure;
2. If the engine temperature is too high, it is easy to dilute the engine oil, and a large amount of engine oil will be lost from the mating gap, resulting in a decrease in engine oil pressure;
3. When the parts of the oil pump are damaged or the clearance is too large due to wear and assembly problems, the oil pump will fail to produce oil or the oil quantity is insufficient;
4. Improper fit clearance between crankshaft and large and small tiles will increase oil pressure if it is too tight, and reduce oil pressure if it is too loose;
5. The blockage of the oil filter and oil suction tray will also reduce the oil pressure;
6. Damage or failure of the oil return valve: If the spring of the oil return valve in the main oil circuit is fatigued, softened or improperly adjusted, the mating surface between the valve seat and the steel ball is worn or stuck by dirt, the oil return volume will increase obviously and the oil pressure in the main oil circuit will also decrease;
7. Improper selection of engine oil: If the engine oil is used improperly or the brand is selected improperly, the leakage will increase due to the low viscosity of engine oil when the engine is running, thus reducing the engine oil pressure;
8. The oil pipeline is blocked by oil leakage.