Category: Automakers

Water Pump. Liquid Impeller

2023

Video: Water Pump. Liquid Impeller

Отличия серверных жестких дисков от десктопных
Video: Difference between Impellers Single Suction and Double Suction 2023, January
Water Pump. Liquid Impeller
Water Pump. Liquid Impeller
Anonim
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The background (in his words) was as follows. For two years, the car almost did not upset anything, but recently the engine began to overheat in an ordinary street traffic jam, of which there had been enough before. At first, the electric fan saved, but soon a critical moment came: the fan was buzzing, and the temperature of the liquid was slowly rising. The traffic jam, meanwhile, has no end in sight - and our future client just in case has been reorganized into the extreme row. It turned out, not in vain! Ten meters later, a hot geyser hit under the hood, throwing several liters of Tosol from under the cork of the expansion tank.

I had to top up and slowly get to the nearest service. They determined that the liquid does not enter the radiator, it circulates only along a small circuit. So the thermostat is to blame - replaced. But the next day the motor overheated again. The owner panicked and went to another service, where, without further ado, they also suggested … replace the thermostat! Do not rush to scold the masters - what would you do if the engine is boiling and the radiator is almost cold? When the "nine" was in our service, we also started by checking the thermostat. They even put their own "reference". The result is the same. It turned out that the malfunction here is somehow unusual. Now the pump was under suspicion: does it work?

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Removed: no impeller! But where did it go, where are the debris? In the fused Tosol, if you look closely, you can notice dark inclusions, and even then, provided that it is not rusty-red: this is the missing part. Melted! For some time now, a metal impeller was replaced by a plastic one. Know-how, a lot of advantages. But the heat resistance of some products seems unenviable. Already at 103–105 ° C, inferior material can soften - and the part will turn relative to the roller, after which the pump no longer works. The temperature rises rapidly … and then the plastic begins to melt, mixing with the boiling "Tosol."

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Soon another car came to us: the scenario is the same. On a photo 1 on the left and in the middle both of these pumps, and on the right - old, with a metal impeller. But there was a different story. See what threatens the car owner who bought a fake "Antifreeze"? But this good, especially on the roadside "collapse", as much as you like!

Well, what are these ruins (photo 2)? The owner, noble, was brave - he did not pay attention to the cries of a crumbling pump. Is it flowing from under the stuffing box, the bearing is "croaking"?

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