| A pump is a device designed to move liquids | | | | center continuously. Located near the center |
| or slurries from lower pressure to a higher | | | | is the inlet to the pump which allows the |
| pressure. It works by using mechanical forces | | | | fluid returning from the radiator to hit the |
| to push the material, either by physically | | | | pump vanes. These pump vanes then throw the |
| lifting, or by the force of compression. | | | | fluid to the outside of the pump where it can |
| Pumps generally fall in two major categories: | | | | enter the engine. A pulley is mounted on the |
| the rotodynamic pumps and positive | | | | shaft on the outer side while on the inner |
| displacement pumps. The categories are based | | | | side the impeller that acts like a |
| on the method for moving fluid. Rotodynamics | | | | centrifugal pump as well as the seal to keep |
| pumps are based on bladed impellors which | | | | the coolant from leaking out are located. The |
| rotate within the fluid and serves to convert | | | | coolant is moved by the Pontiac Water Pump |
| the increase in the energy of the fluid into | | | | through the water jackets into the engine |
| pressure energy for an associated piping | | | | cylinder block then to the cylinder head and |
| system. A positive displacement pump causes a | | | | into the radiator and finally back to the |
| liquid to move by trapping an amount and | | | | pump. This is the process that removes the |
| displacing it into a discharge pipe. | | | | heat from the engine by removing the heat |
| | | | from the coolant before it goes back to the |
| The Pontiac Water Pump is a simple | | | | engine. |
| centrifugal pump and an important component | | | | |
| of the cooling system. It is a small-impeller | | | | There are different designs of water pumps |
| pump responsible for circulating the coolant | | | | depending on their purpose. The rotating |
| through the engine's cooling system whenever | | | | impeller which is responsible for |
| the engine is running. It is mounted on the | | | | transmitting the coolant is the commonly |
| engine and is driven by the fan belt, | | | | installed water pump. Rear wheel drive cars |
| alternator belt or sometimes the timing belt | | | | often have the fan installed on the end of |
| connected to the crankshaft of the engine. | | | | the water pump shaft. To prevent leakage |
| Centrifugal pumps are rotodynamic pumps which | | | | around the pump shaft, these water pumps |
| convert mechanical energy into hydraulic | | | | usually have spring-loaded seal. There are |
| energy by centripetal force meaning acting | | | | also water pumps that have pre-packed ball |
| perpendicular to the direction of the motion | | | | bearings at each end so lubrication will not |
| of the body) on the liquid. Most water pumps | | | | be necessary. Pumps also wear internally |
| are centrifugal pumps consisting of inlets, | | | | depending on the liquid being pumped, |
| outlets, housing, a shaft, a rotating | | | | materials used for construction and the |
| impeller, a volute and sometimes a shroud. | | | | operating regimen. Common problems of a |
| The Pontiac Water Pump uses centrifugal pump | | | | Pontiac Water Pump are coolant leaks, noisy |
| to send fluid to the outside while it spins | | | | or defective bearing and damaged or corroded |
| which causes the fluid to be drawn from the | | | | impeller. |