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Boat Engine Overheating

Sportfishing yacht running offshore near Channel Islands Harbor powered by marine diesel engines serviced by 805 Marine Diesel Mechanic

If your boat engine is overheating, shut it down and diagnose the cause before serious engine damage occurs. This guide explains how to troubleshoot marine diesel overheating using real cooling-system logic so you can separate raw water flow problems, heat exchanger blockage, mixing elbow restriction, and closed-loop cooling failures before they turn into warped heads, […]

Marine Engine Raw water flow problems

Marine Engine Raw Water Flow Problems — Troubleshooting & Diagnosis Guide

Marine Engine Raw Water Flow Problems — Troubleshooting & Diagnosis Guide Quick Technical Diagnosis Summary: Raw water flow problems are most often caused by intake restrictions, air leaks on the suction side, damaged pump impellers, collapsed hoses, or internal blockages in the strainer/heat exchanger circuit. The fastest diagnostic clue is whether exhaust discharge water volume […]