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Old 07-06-2015, 07:17 PM   #1
City: Newport, Ri
Country: USA
Vessel Name: Jessie Ann
Vessel Model: Grand Banks 32 Sedan
Join Date: Sep 2014
Posts: 1
Is it possible to rebuild a Groco c80 washdown pump?

I have a c80 Groco vane style pump to wash down my deck. For some unknown reason it stopped working and flips the breaker. When I try to reset the breaker it trips again. i had a boat electrician look at it and he thinks the impeller is frozen and will need to be replaced.

My question is: is it possible to rebuild one of these pumps? i check various sites and have been unable to find a rebuild kit. does anyone have any knowledge to share? Thank you!

m/v Jessie Ann
32 Grand Banks Sedan
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Old 07-06-2015, 08:00 PM   #2
City: Venice Louisiana
Country: United States
Join Date: Dec 2013
Posts: 1,097
They're pretty simple. If its the one I'm familiar with. Pull the front cover and unstick the rotor. The motor is replaceable if its bad.

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Old 07-06-2015, 08:55 PM   #3
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City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 2,864
If kulas44 idea doesn't work, call Groco. They are really nice folks.
Parks Masterson
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Old 07-07-2015, 05:26 AM   #4
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Join Date: Oct 2007
Posts: 14,908
Usually unsticking the vane is all that is needed.

If it has been pumping water a scrub with a Brillow pad on the inside would never hurt.
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Old 07-07-2015, 07:22 AM   #5
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City: Gulf Shores, Ala.
Country: USA
Vessel Name: Ulysses
Vessel Model: Romsdal 1963
Join Date: May 2013
Posts: 786
Most likely the impeller has debris in it. As stated above, remove front cover and ensure that there is nothing obstructing the impeller. If something is hanging it up, I would check the strainer on the suction end.

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