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post #5 of Old 06-14-2015
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Re: 2YM15 pressure in overflow container

I have a yanmar 2GM20F and after motoring for a short time (10-15 minutes) the cap to the coolant expansion tank blew off and filled up above the "full line" it boiled over and I lost some coolant into the bilge.

also water stopped flowing out of the exhaust. I've checked the impeller and it's fine. I also replaced the mixing elbows a month ago.

is it ok to restart the engine to get the coolant back into the engine?
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