Several parts of the vehicle most likely to leak oil

Vehicle oil leakage is a very troublesome problem for car owners. It will not only cause loss and waste of oil, increase the cost of using the vehicle, but also affect vehicle performance, cause component damage, and affect driving safety. The failure of vehicle oil leakage can be large or small, and specific problems need to be analyzed in detail. The DARO trailer axle simply summarizes the places where the vehicle is most likely to leak oil, and the owner can pay more attention to it during daily maintenance.

engine oil pan

The engine oil pan is a place where oil leakage is more likely to occur, and it is also a more dangerous location for oil leakage. Once the amount of oil leakage becomes large, the oil splashing on the high-temperature exhaust pipe during driving is likely to cause the vehicle to spontaneously ignite. The reason for the oil leakage of the engine oil pan is generally that the fastening screws are not tightened according to the specified torque, whether it is too loose or too tight, it may cause oil leakage.

In addition, if the engine oil pan gasket is not replaced for a long time, it is also prone to poor sealing, resulting in oil leakage from the oil pan. Deformation damage can also easily lead to oil leakage.

Crankshaft and Body Fixed Points

If you find that after your vehicle has been stopped for a long time, a small piece of black oil often appears behind the engine fan or on the ground where the gearbox connects to the engine, it is likely that the front and rear crankshaft oil seals are faulty, resulting in poor sealing and oil leakage. Leakage, such as irregular oil seal installation, aging oil seal, excessive internal oil, etc.

Dryer exhaust valve

Under normal circumstances, the air or a small amount of water is discharged from the exhaust valve of the dryer. If the owner finds that the air or water discharged from the exhaust valve is mixed with oil, if the pipeline and the valve body of the air circuit are not faulty, It is necessary to consider the failure of the air pump, such as excessive piston ring clearance, etc., the air pump must be repaired or replaced.

shock absorber oil leak

Oil leakage from the shock absorber is also more common, usually caused by a shock absorber failure. There are many ways to judge whether the shock absorber is faulty, such as driving at a low speed on a safe road section and braking urgently, observing the braking posture of the vehicle, if the vibration is too large, it means that the shock absorber is faulty; another example is the parking state You can press down one corner of the body and then release it. If the body rebounds and tends to stabilize quickly, it means that the shock absorber is normal. If it stabilizes after repeated vibrations for a few times, it means that the shock absorber is damaged. It is recommended to replace it directly.

Connection between engine and gearbox

When oil leakage occurs at the connection between the engine and the gearbox, it is necessary to judge whether the leaked oil belongs to engine oil or gear oil. It can be distinguished from the smell. Generally, the engine oil has the smell of ordinary oil, and the gear oil has more or less a trace of smell.

If the leaked oil is engine oil, it means that the engine crankshaft oil seal is leaking; if it is gear oil, it means that the transmission oil is leaking. Of course, it may also be that the internal gears of the gearbox are severely worn and the gap is too large, causing the vehicle to leak oil.

vehicle rear axle

The common cause of oil leakage on the rear axle of the vehicle is oil seal failure, such as the quality of the oil seal is not up to standard or it has not been replaced for a long time, resulting in a decrease in its sealing and ductility; defects such as rust spots, rust, burrs, and roughness on the rotating shaft cause oil seal leakage; Too much lubricating oil or too many impurities; improper installation of oil seal or failure of internal parts, etc. In addition, it may also be caused by the excessive gap between the bevel teeth and fan teeth of the rear axle, and the rotation of the drive shaft is out of circle and out of center.

It is recommended that car owners should carefully observe the vehicle during the maintenance of the car, and do regular maintenance. After the vehicle is found to leak oil, try to find professional maintenance personnel to overhaul it. Only in this way can we achieve higher application value, and we will not lose the chain when we work.