Can a leaking car water pump be repaired?

[DiIsabelle]

A leaking car water pump can be repaired. Methods for repairing water pump leaks: Disassemble the water pump, inspect the water seal, remove the pump cover, loosen the end fastening bolts, and take out the impeller and water seal assembly. If the static ring or dynamic ring surfaces are damaged and leaking, they can be ground on a cast iron plate with grinding compound to achieve a tight fit. If the gasket ring or wave ring is damaged, they should be replaced with new parts. The working principle of an automotive water pump is: The engine drives the water pump bearing and impeller through the pulley, causing the coolant in the pump to rotate with the impeller. Under centrifugal force, the coolant is thrown to the edge of the pump housing, generating pressure before flowing out through the outlet or hose. The center of the impeller experiences reduced pressure as the coolant is thrown outward, allowing coolant from the radiator to be drawn into the impeller through the hose due to the pressure difference between the pump inlet and the impeller center, achieving continuous coolant circulation.