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post #6 of Old 06-29-2019
colemj
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Re: Depression and thermostats

Does the water flow out change at all when this is happening? If not a bad sender/gauge, it sounds like something is rolling around in the cooling loop plugging/unplugging flow. Could be a thermostat opening/shutting, but that is an odd failure mode. Just remove the thermostat and see what it does. Some engines block the flow when the Tstat is removed, but these are usually fresh water cooled engines - but check to make sure.

Mark

Dolphin 460 Catamaran "Reach"

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