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ran engine with seacock closed

emac

Regular Contributor
2020 penta 380, OK I did a really dumb thing. went out with seacock closed, engine ran between five and 10 min tops. saw engine temp spiking and realized what I did, shut down motor, let cool an hour before opening the valve and going right it. I may have dodged a bullet, but what might have I done damage wise. Engine was running at about 170 when I came in.
 
2020 penta 380, OK I did a really dumb thing. went out with seacock closed, engine ran between five and 10 min tops. saw engine temp spiking and realized what I did, shut down motor, let cool an hour before opening the valve and going right it. I may have dodged a bullet, but what might have I done damage wise. Engine was running at about 170 when I came in.


I should add its a fresh water cooled engine.
 
Would change raw water impeller and inspect pump inner housing for damage... If any parts of impeller are missing you have to find them. Start looking at the inlet side of the heat exchanger tube bundle.
 
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