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post #3 of Old 02-27-2006
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I concur with Rob on his advice. The thermostat is often the culprit - especially on boats that sit for long periods in salt water. On engines that do not get flushed, barnacles have a tendency to grow inside the housing around the thermostat. Here's a picture of barnacles growing inside a thermostat housing cover. The barnacles can impede the opening of the thermostat, thus causing the engine to run hotter that it should. "Salt never sleeps"
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File Type: jpg barnacle.jpg (36.9 KB, 101 views)

Last edited by administrator; 02-28-2006 at 05:14 PM.
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