Baotou North heavy truck parts of the engine itself oil pump, compared with the normal oil when the different feelings, can quickly find out some of the causes of failure.

1, the oil suction

Loosen the oil way to deflate the oyster pin, use the hand pump to pump the oil, when gently twitch the handle, if you feel the suction of the oil path, press the handle, bleed the pin to discharge less fuel, which indicates that the oil absorption resistance of the oil pump is too large.

The reason for the decrease of oil is that the breather holes on the fuel tank cover are blocked, and the negative pressure in the oil tank affects the oil; the viscosity of the diesel oil used in winter is too large and the fluidity is poor.

2, there is a mixture of exhaust gas

Pump oil, gas from Guo nail spilled fuel mixed with gas, if you press the handle to feel resistance, and discharge of the fuel and less, it is Baotou beiben parts of oil pump high pressure oil pump to the oil filter or blocking, reduce oil.

3, the output of fuel mixed with gas

Pump oil, gas from the vent screw output at fuel mixed gas; from the bond nail to the tubing joint pump not tighten; joint sealing pad damage or damage caused by oil leakage, inhaled gas clearance from the oil pump of the threaded connection or hand pump piston and the outer wall of the injector card; lag in the open position, the valve seal, high pressure gas channeling in the storage chamber into the low pressure oil passage (the gas available hand pump discharge quickly, where starting again after fleeing into the gas tank); the oil level is too low and the air suction tank to pump the oil road; severe obstruction, easily inhaled gas.

4, small resistance at the handle

If there is no loosening of the air nail, if the pressure of the handle is always felt smaller for a long time, the oil return valve or the inlet and outlet valve of the oil pump will not be sealed properly, and the oil leakage will occur.

The reasons are: the valve face wear; valve face with impurities; valve spring damage.

Summary: when we check the general fault fault phenomenon can check out the engine through Baotou beiben heavy duty truck accessories auxiliary device of the engine itself as long as it determines the scope, the specific reason is easy to handle, so we should make good use of effective methods, more quickly find and solve the engine fault.