Common Causes of Marine Engine Overheating and How to Prevent Them
3rd Feb 2026
Marine engine overheating is one of the most common and costly issues boat owners face. Whether you run an outboard, sterndrive, or inboard diesel, excessive heat can quickly turn a good day on the water into an expensive repair job. The good news is that most overheating problems are predictable, preventable, and linked to routine maintenance items.
Understanding why marine engines overheat and how to stop it happening is key to protecting your engine, avoiding downtime, and extending its servi
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