The gasoline pump is a device to bring gasoline to the engine, which shows that the usage of gasoline pump is still relatively large. There are also two kinds of gasoline pumps. The following small series of automobile maintenance technology network will briefly introduce to friends how to deal with the rust problem of automobile oil pump, and then patiently introduce the relevant knowledge of oil pump to friends.

Brief introduction of automobile oil pump-brief introduction

There are two kinds of automobile fuel systems, one is full oil return system and the other is half oil return system. The difference between them is that the main oil return system has an oil return pipe on the fuel rail. No semi-oil return system. Most total oil return systems need to measure five oil pressures, which are static oil pressures.

Brief introduction of automobile oil pump-brief introduction

When the ignition switch is turned on, the oil pressure is mostly 280 kPa, the idle oil pressure is 250 kPa, the maximum oil pressure is about 750 kPa, the regulated oil pressure is about 300 kPa, and the remaining oil pressure is about 150 kPa. If the semi-oil return system can only measure the static and idle residual oil pressure, there are three kinds. The idle speed of semi-oil return system is mostly around 400 kPa.

The main reasons for insufficient pressure of gasoline pump are:

1. The oil seal at the rear end of the driving gear shaft of the oil pump is worn or the pipe joint is lax, and there is air in the pipe; The oil tank is short of oil and the filter is dirty;

2. The main bearing at the gear end of the oil pump is worn or stuck, which makes the axial clearance of the oil pump gear too large;

3. The needle bearing is damaged, resulting in abnormal gear engagement of the oil pump, and the inner cavity of the oil pump housing is pulled;

4. The oil pump regulating valve or safety valve is stuck, and the spring elasticity is insufficient or broken.

Well, today's friends of the automobile maintenance technology network introduced the problem of rust in the automobile oil pump, so much for it. I don't know if my friends have any further understanding of the treatment method of automobile oil pump rust after listening to the introduction of automobile maintenance technology network. I hope the brief introduction of Bianxiao Auto Maintenance Technology Network can help my friends. If you want to know more knowledge, then pay attention to the website Bear's paw, and Bian Xiao from Auto Maintenance Technology Network is waiting for you here!