plunger sets installed at the shoulder-leak The plunger-type fuel pump plunger sets of the large circular cylindrical pump shoulder and upper body located between the sealing gaskets, rely on the combination of the two to achieve the precision machining sealed. This is a ring, a small area enclosed plane. So the obvious traces of Squeeze, will cause a large number of diesel leaked, the diesel engine does not work, and sometimes there will be at low speed can be barely operational, and the increase in speed will be inhaling air phenomenon. Taiwan plunger sets installed at the shoulder of a squeeze is the main reason for signs of tightening oil from the valve seat to bear too much torque, and high-pressure diesel changes in the volatility of the stress here will be accelerated fatigue damage.

     leak between the plunger and plunger Plunger and plunger sets of the original with very sophisticated and space only 0.002 ~ 0.003 mm, both matching and after grinding, especially high precision surface roughness. In use, if diesel contains impurities and moisture, caused plunger-and wear or corrosion, increased space, diesel leak occurred, thus unable to build high-pressure diesel.

      plunger positioning screw sets the oil spill Under the plunger sets with a set screw 1 mm thick copper gaskets, seals from its main role. If this small leak with washers, or raising it, the breakdown of Inner plunger diesel did the set screw to the leak.