Baotou North Benz fault parts of the engine oil pressure is high when the engine works, the oil pressure gauge and induction plug is good, the oil pressure indicator pressure exceeds the specified value, and the power of the engine. Sometimes due to high oil pressure and the top of the sensor or oil filter housing and other mechanical parts.
The reason
Not in accordance with the provisions of the region or season to use the corresponding grade of oil, so that the oil viscosity is too large and lead to high oil pressure.
Pressure limiting valve pressure, so that the oil pump can not open the top pressure limiting valve backflow decompression.
Jam of lubricating oil passage.
Nozzle blockage, so that the amount of oil spray to reduce or stop spray, resulting in high pressure.
The new maintenance of crankshaft bearing, connecting rod bearing, cam bearing clearance is too small, the lubricating oil into the friction surface is difficult to make the main oil channel pressure is too high.
The diagnosis and treatment methods
First, check the oil dipstick to observe whether the oil viscosity is too large, when the viscosity is too large should be replaced with the appropriate oil.
For the new maintenance of the engine, you should consider whether the bearings are too tight, should be re examined and adjusted.
Check whether the stiffness of the main and auxiliary oil road and Baotou North Benz engine oil pump safety valve spring is too large. Pressure regulating valve plunger adhesive bonding will make the safety valve can not be opened, which should be adjusted in time, cleaning and replacement.
For a long time and the maintenance of the engine is not timely, should check and clean the oil road and the north part of the Mercedes Benz accessories in Baotou, excluding oil outlet obstruction fault.