[汽车基础知识]Which “small holes” in the car cannot be blocked?

existcarThere are small orifices in many parts, and when the small holes are blocked, it will cause malfunction. So which small holes can't be blocked?
Water pumpOnce the pump hole is blocked, the leaked water will enter the water pump bearing to destroy the lubrication environment, causing premature wear of the bearing and the pump shaft.
Oil transfer pump oil drain hole Some oil transfer pump pump body has oil drain hole. If the leaking oil hole is blocked, the diesel oil leaked by the oil transfer pump will not be discharged from the pump body, but will be discharged from the oil transfer pump.pistonInto the bottom of the fuel injection pump so thatlubricating oilDilution and deterioration, resulting in poor lubrication in the oil pump.
AccumulatorWhen the vent hole is charged, the electrolyte in the battery will react and produce a large amount of gas, which will be discharged from the vent hole. If the vent hole is blocked, the generated gas will accumulate too much, and the pressure in the battery will increase. In severe cases, it will cause an explosion of the battery.
Injector Spill Hole Diesel engine injectors have return pipes to return excess diesel that has not been injected into the cylindertankInside. Some car owners believe that if the oil return pipe is blocked, the amount of oil into the cylinder can be increased, thereby making the engine more "powerful". In addition, some car owners were too late to send in repairs due to damage to the oil return pipe. To prevent diesel oil from spilling, it was a mistake to block the oil spill hole artificially.
Fuel injection pump respirator Some engines have a respirator on the fuel injection pump, whose function is to ensure that the heat and gas generated in the lubricating oil chamber can be emitted in time when the fuel injector is working, and to prevent the intrusion of unclean air and impurities from the outside. After the fuel injection pump respirator is damaged, some car owners directly block the small hole in the place instead of repairing it, which will cause the lubrication effect to deteriorate.

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