Re: How to destroy a diesel in one easy step...
A couple times I forgot to open the raw water engine cooling seacock after starting the engine. While warming up the engine the overheat alarm went off, opened the seacock and engine cooled down fine. It is raw water cooled so high temp alarm is at about 170 degree- should not have damaged engine.
I did not inspect the raw water pump and since then have run many hours on the engine without pump problems. Could the impeller still be damaged? I plant to change it say every 3 years.