Repair of fuel pumps for tractors and the most common problems

The purpose of the high-pressure fuel pump is to supply fuel to the carburetor. Fuel pumps of this type are used on tractors, excavators, wheel loaders. The fuel pump can be purchased new, used or restored already existing one. The most popular in today’s market are high-pressure fuel pumps developed by bosch, john deere, cummins, lucas / delphi, stanadyne manufacturers.

Fuel pumps began to be used as early as the early 1900s, until then fuel was supplied to the carburetors with the help of gravity, and not with the help of a fuel pump. With the introduction of fuel pumps and in order to make the whole process safer, the fuel tanks were moved away from the engine. For this reason, mechanical fuel pumps began to be used.

What is the purpose of the high-pressure fuel pump and how does it work?

The high-pressure fuel pump pulls fuel out of the tank through a low-pressure connection. The fuel pump consists of one or two high pressure elements, each of which is integrated into the housing with its own camshaft. The pump camshaft is driven by belts, chains or gears. In order to create the necessary high pressure, the pump pistons move up and down. Fuel is supplied as needed using an integrated gear or electric fuel pump. Meanwhile, the engine control unit allows you to deliver the required amount of fuel. The use of an electric pump valve improves the filling of a high-pressure pump. No longer needed fuel enters the tank back into the tank through another low-pressure connection.

What can happen to the fuel pump and how to solve problems?

Various malfunctions of high-pressure fuel pumps are common problems that we face in today’s world. Repair of fuel pumps for tractors causes a lot of inconvenience to the consumer. Over time, fuel pumps with steel tanks of older technology can begin to rust, and in modern, more modern tanks, plastic can begin to decompose. With the onset of these processes, media appears that allow debris to enter the fuel pump. This leads to wear of the fuel pump. If dirt and debris get into the fuel tank, they are transported directly to the fuel pump, which leads to poorer engine performance. One of the main ways to solve the problem is the maintenance of the fuel pump. This is a good practice in order to avoid possible breakdowns and to ensure a long-term and high-quality service life of the equipment.