Honda B100 80's era not pumping water

[B100]

I have an old B100 that is not pumping water. I replaced the water pump impeller and gaskets. The old impeller was in pieces and I found most of them. I put it back together (twice) and still nothing comes out of the pee hole.

Is there a good way to check the engine for pieces of impeller? I would like to backflush it from a spot that allows me to do the least disassembly possible, because I am not a pro. We checked the thermostat area, but that's where I quit for the day.

Also, is there an easy way to confirm that I did the impeller change correctly?

Thanks for the help!
Scott

 

[ahicks]

Have you checked to see if your problem may be caused by an over active mud dauber's unfortunate choice of location to build a nest? That has to be the #1 reason most engines (that are not used every day) stop peeing.

 

[B100]

Yeah, thanks..
Pretty sure it's a piece of impeller. Already run a wire through it a few times.