Fuel pump card processing and the reasons for the delay

Fuel pump diesel car engine fuel supply system of "heart." Precision injection pump, a dual card delay would lead to engine speed instability and will lead to serious engine flameout and Speed accident.

The reasons for the stagnation injection pump card

The old fuel pump, the more reason for the delay cards do not clean diesel, piston and piston sets between mechanical impurities, or plunger and plunger sets of surface injury or top edges and corners plunger being a burr by Kepeng to.

The new fuel pump, the card stagnation following reasons:

(1) At present, some fuel pump manufacturer in the debugging and maintenance of fuel pump units, pay no attention to selection of high quality diesel, resulting in the diesel fuel used by the debugging actual content of glial larger, more acidic. This debugger, in a dual fuel pump with precision surface adhesion of a residual oil film. If the fuel pump storage for too long, this layer will gradually Film formation of organic sediment and plastic guitar, and a card will be installed after the hysteresis phenomenon.

(2) fuel pump storage Baoguanbushan, packaging lax, moisture-proof anti-corrosion material leakage or damage to equipment, tubing joints dust cap damage or loss, and also have a card hysteresis phenomenon.