How is the rotation of a water pump determined?
Exceptions are pumps with straight vane impellers (vanes perpendicular to the shaft) and shrouded impellers. Straight vane impellers function in either direction. Shrouded impellers turn so they scoop the fluid. The examples show the impeller side of the pump, the rotation on the hub side is opposite.
Can a straight vane turn a water pump?
Exceptions are pumps with straight vane impellers (vanes perpendicular to the shaft) and shrouded impellers. Straight vane impellers function in either direction. Shrouded impellers turn so they scoop the fluid.
How are impellers of a water pump supposed to turn?
Impellers must turn in a direction so that the fluid is pushed (not scooped) through the pump (see sample drawing below). Exceptions are pumps with straight vane impellers (vanes perpendicular to the shaft) and shrouded impellers. Straight vane impellers function in either direction.
What causes a water pump pulley to spin?
There are multiple ways this metal component can be damaged, including having an incorrect sized or improperly adjusted water pump belt installed, vehicle accidents or problems with the internal bearings that allow the pulley to spin. This symptom is commonly recognized by oil service technicians…
What does the pulley on a reverse rotation water pump mean?
Water pump pulleys running on the outside surface of the belt indicate a Reverse Rotation water pump (flat or smooth side of belt). We field a lot of cooling questions in our workday. When the question arises, “Is this a standard or reverse rotation engine set-up?”, the customer’s own vehicle holds the clearest answer.
Where are the water pump pulleys on a car?
Refer to the belt path diagram under the hood, typically located on the fan shroud or front fender brace, or locate the water pump pulleys on the vehicle. Compare the diagrams below. Water pump pulleys running on the inside surface of the belt indicate a Standard Rotation water pump (grooved side of belt).
How does a water pump keep coolant flowing?
The water pump is comprised of multiple gaskets and seals that keep coolant contained and ensure that consistent flow of coolant is delivered from the radiator to the engine. Eventually, these gaskets and seals will wear out, dry up, crack or break entirely.
What happens when a car water pump breaks?
Eventually, these gaskets and seals will wear out, dry up, crack or break entirely. When this happens, coolant will leak from the water pump and drop to the ground, typically in the front of your car and in the center of the motor’s location.