Join Date: Feb 2010
Location: Narragansett Bay
Thanked 385 Times in 364 Posts
Rep Power: 9
I just chewed up a brand new impeller that I installed two weeks ago and ran for a total of an hour. Every single blade broke, although, much of that could have happened post failure, due to the heat that built in the pump. We were motoring out, noticed excessive exhaust smoke and shut down. I have a pic, but not on this iPad.
I did have some yard work done between the one run I made and this failure. They changed fuel filters for me and, since I always close the raw water seacock, I wondered if they ran her dry when they bled the system.
Of course, they deny it, as I expected. I will never know for sure.
The only remaining potential is that the impeller dried out. It was on a shelf in the engine compartment for about 9 months. I always keep a spare aboard and use it to commission in the spring and buy another spare. Not much use as a spare, if it fails in an hour.
I've heard of people keeping their impellers packed in glycerin or oil. I never have.
How do you store yours?
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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.