Mistakes even the professionals can make when installing a pump

Water pumps are more reliable nowadays compared to a few decades ago. With modern technology, pumps are smaller, more powerful and more efficient. Some pumps don’t even make noise when running such as submersible pumps. still, despite the enhanced reliability of pumps, it is often a good idea to replace your pump during your normal maintenance routine. It is safer and cheaper to replace a pump than to let it fail. During replacing your pump, even the most experienced professional can make mistakes that will cause premature pump failure. Read on to understand some common mistakes that even a professional can make when installing a pump.

Faulty seals

Bad seas are the most common reason why your pump is likely to fail. A damaged seal, improper seating or misaligned gasket can mean that the pump isn’t operating efficiently, is under stress from misalignment. When a pump is improperly installed, it will likely cause leakage from the mounting surface.

Most of the times, the pump installer uses the seal or O-ring that the manufacturer recommends and then supplements with a sealing paste or gasket set when it is not called for. Using the wrong seal or reusing an old seal is another common problem that people make. When using a recommended seal from a tube, it is important to properly apply and allow enough drying time. When you fail to do so, it can result in seal problems. It is important to follow the guidelines from your water pumps maker when applying sealant because when you apply an excess sealant to the gasket, it flows into the coolant system, into the shaft seal of the pump and this can cause the seal to fail.

Dry rotation of the pump

There is a mechanical seal found in the pump and the seal is created by the flow of fluid within the pump. When the coolant flows through the pump without breaks or air bubbles, the mechanical seal remains intact. When lapses and pauses are introduced in the coolant, it can temporarily break and even overheat the mechanical seal. This can cause a lot of problems. This is why it is important to hand rotate the pump until it is full when refilling the cooling circuit.

Improper belt components

Your pump has a drive belt that can be either a serpentinite belt or the chain for the vehicle. If either is not installed correctly or if other components that the belt drives seize or have rotational issues, this can affect the pump’s performance and lead to failure. A belt that is misaligned, that is not fully engaging the pully of the pump is another concern. It can put undue pressure on the shaft and pulley.

Bad coolant or using the wrong coolant is a common problem when installing water pumps and this can cause issues for the pump. Contaminated coolant can cause corrosion, seal failures and more. Engine oils and abrasive particles are the most common contaminants that cause problems in a pump.

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