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Mariner 60 hp 1989...no water from telltale
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<blockquote data-quote="Boat2fast" data-source="post: 385857" data-attributes="member: 13358"><p>Yes on that. Remove the whole hose and blow it out with air if needed.</p><p></p><p>Look at your engine. See if the tell-tale hose comes from the thermostat housing. If it does you will only see water flow when the thermostat opens, engine warm/hot. It will be pretty warm water. It will cycle as the thermostat opens and closes. </p><p></p><p>If the hose originates from the main water passage, block or head, then you should see water flow, under pressure, whenever the engine is running. It will get stronger as you rev up the engine.</p><p></p><p>That's the two different ways Mercury does it.</p><p></p><p>If you don't see any water, inspect pump. Never run engine with dry pump. The impeller will melt in just seconds...ruin your next time out.</p></blockquote><p></p>
[QUOTE="Boat2fast, post: 385857, member: 13358"] Yes on that. Remove the whole hose and blow it out with air if needed. Look at your engine. See if the tell-tale hose comes from the thermostat housing. If it does you will only see water flow when the thermostat opens, engine warm/hot. It will be pretty warm water. It will cycle as the thermostat opens and closes. If the hose originates from the main water passage, block or head, then you should see water flow, under pressure, whenever the engine is running. It will get stronger as you rev up the engine. That's the two different ways Mercury does it. If you don't see any water, inspect pump. Never run engine with dry pump. The impeller will melt in just seconds...ruin your next time out. [/QUOTE]
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Mariner 60 hp 1989...no water from telltale
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