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Old 05-11-2016, 06:07 PM   #1
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Ford Lehman 120 heat exchanger

I just finished switching my heat exchanger, how long should engine run before water comes out of exhaust. I turned engine on but no water is coming out of exhaust
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Old 05-11-2016, 06:23 PM   #2
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It can take 30 sec. to a minute perhaps if the mufgler is dry and empty.

Feel the cover plate of your raw water pump with the engine running. If it's cool and doesn't warm up or get hot it's pumping water.
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Old 05-12-2016, 07:09 PM   #3
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did you re-open the thru hull after working on it?
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Old 05-12-2016, 07:16 PM   #4
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Could be an air lock. Loosen a hose and see if water is running


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Old 05-12-2016, 07:26 PM   #5
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Thanks meridian, did just that and everything is working.
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