A defective water pump can even cause the engine to turn off immediately

Being a key element of the water cooling system, the water pump is indispensable for proper car operation. The water pump is able to keep the coolant circuit active even if the oil is in the standstill. As soon as the combustion chamber overheats, the engine oil can no longer lubricate the plunger and, as a result, the water starts to boil, causing a forced spindle stroke and the melting of the cylinder walls. In such a context, few minutes are enough for the engine’s total failure.

Since the water pump works at the same time as the engine, it is no surprise that its power supply will be entrusted to the crankshaft. The transmission can take place via a trapezoidal, toothed or Poly-V belt. When the engine is switched off, the water pump stops, as its operation is no longer necessary (otherwise it is invalid). This correlation demonstrates that the performance of the water pump is proportional to the performance of the engine. The higher the motor rotation speed, the higher the water pump’s workload becomes. The performance range of the water pump depends on the torque transmitted by the strap. This is no longer valid when the engine performance is increased later, for example, by a turbocharger. In this case, even the water pump must be more powerful. Normally, the operating life of a standard pump is approximately 150,000 km. Its maintenance is compromised by the inevitability of destroying the respective gaskets during pump extraction.

In any case, the defect will be notified almost immediately by means of the coolant sensor, since the operating temperature of the engine increases considerably. When water loss becomes dramatic, immediate pump replacement is inevitable. In our online shop you’ll find all the spare parts you need (for example, power windows, parking brake cable, pulse generator, air conditioning compressor, mudguard, etc.) for most automotive brands.