What effect does a clogged seawater intake have on a marine engine?

A clogged seawater intake restricts the flow of cooling water necessary for maintaining optimal operating temperatures in a marine engine. When water flow is inhibited, the engine's cooling system becomes less effective, which can lead to higher temperatures within the engine. Overheating can cause significant damage, including warping of engine components, failure of gaskets, and ultimately, engine seizure. Proper cooling through seawater intake is critical for the sustained performance and longevity of marine engines, making it essential for technicians to monitor and maintain this system to prevent hazards associated with overheating.