Which condition is commonly observed with wet sleeves due to cavitation?

• A. Cavitation
• B. Cylinder taper
• C. Cylinder out of round
• D. Ridge formation

Answer: (A)

Cavitation causes surface erosion that shows up as pits and roughness on the sleeve bore. In a wet sleeve, vapor bubbles can form in the coolant when local pressure drops, and when those bubbles collapse near the metal they release energy that erodes the surface. Over time this cavitation damage manifests as pits and irregularities on the sleeve, rather than uniform dimensional changes. That’s the hallmark you’d expect to see with cavitation in a wet sleeve. The other wear patterns—taper, ovality, or ridges—are caused by different mechanical or thermal processes and aren’t the typical result of cavitation damage.