If left untreated, cavitation can cause what in a cooling system?

If left untreated, cavitation can cause what in a cooling system?

• A. Overheating of the engine block
• B. Rust on radiator fins
• C. Air pockets forming dead zones
• D. Pinholes in the liner allowing coolant to leak through

Answer: (D)

Cavitation in a cooling system creates vapor pockets that collapse with high energy, causing erosion of the metal surfaces inside coolant passages. Over time this wear can punch through the liner or walls, creating small openings that coolant can leak through. So, the most direct failure you’d see from untreated cavitation is pinholes in the liner allowing coolant to escape. While cavitation can reduce cooling efficiency and contribute to overheating, the specific result described here is the formation of these pinholes due to erosion.

Cavitation in a cooling system creates vapor pockets that collapse with high energy, causing erosion of the metal surfaces inside coolant passages. Over time this wear can punch through the liner or walls, creating small openings that coolant can leak through. So, the most direct failure you’d see from untreated cavitation is pinholes in the liner allowing coolant to escape. While cavitation can reduce cooling efficiency and contribute to overheating, the specific result described here is the formation of these pinholes due to erosion.