I think I found the problem the outlet side of raw water piping that goes overboard has a valve. This valve was previously set by the former...
Also plate cooler recently clean so no problem there.
This a 16 cycl. MTU 6000 hp tug it has a raw water side that that run adjacent to coolant side that is a closed system through a plate cooler. My...
No I don't think so the engine is closed plate cooler type that has a raw side along side a coolant side which flows through heat exchanger.
I'm getting highs temperature alarms and can not find a solution. I cleaned the heat exchanger and bleed the air out. I can see any external leaks...
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