In the use of the engine, the oil pressure must be given high priority. The main reasons and solutions are described below:

First, the oil shortage

If the oil shortage, will make the pump pump to reduce the amount of oil or pumped into the air and no oil, resulting in oil pressure drop, crankshaft and bearings, cylinder and piston will be due to poor lubrication and wear. Should check the oil level in the oil pan before each class work to ensure that there is enough oil.

Second, the engine temperature is too high

If the Baotou North Mercedes-Benz accessories engine cooling system scale is serious, poor work or the engine for a long time overload, or fuel pump fuel supply time too late, will cause the body overheating, so not only to speed up the aging of oil, Oil dilution, from the gap with a large number of loss caused by oil pressure drop. The scale in the cooling system piping should be removed; adjust the fueling time; allow the engine to operate at rated load.

Third, the oil pump stops

If the head of the North Mercedes-Benz accessories oil pump drive gear and the drive shaft of the fixed pin cut or with the key off; and oil pump inhalation of foreign body and the pump gear stuck. Will make the oil pump to stop running, oil pressure also will be reduced to zero. Should replace the damaged pin or key; oil pump suction port should be set to filter and so on.

Fourth, the oil pump out of oil is not enough

When the gap between the pump pump shaft and the bushing, the clearance between the gear end face and the pump cover, the clearance of the tooth side or the radial clearance exceeds the allowable value due to wear, it will result in a decrease in the amount of pump oil, resulting in a decrease in lubrication pressure.

Fifth, the crankshaft and bearing with the gap is too large

When the long-term use of the engine, Baotou North Mercedes-Benz accessories crankshaft and rod bearings with the gap gradually increased, and thus not form an oil wedge, oil pressure also decreased. Can be grinding crankshaft, matching the appropriate size of the connecting rod bearings, so that with the gap back to the technical standards.

Six, oil filter plug

When the oil is blocked by the filter and can not flow, the safety valve on the base of the filter is opened, the oil will be without filtering and directly into the main oil. If the opening pressure of the safety valve is too high, when the filter is blocked when it can not be opened in time, so the oil pump pressure increases, the internal leakage increases, the main oil supply of the corresponding reduction in oil The decline. Should always keep the oil filter clean; correctly adjust the opening pressure of the safety valve; timely replacement of the safety valve spring or grinding steel ball and seat with the surface, to restore its normal work performance.