Weird problem, Sicce Xstream not pushing water

[Reephish]

I have a Sicce Xstream 8000 that I got used with my system and I noticed after purchasing a new 6500 that the 6500 moves way more water than the 8000. I put the 8k in a bucket to test it out and it flings water outward from the propeller but doesn't push water forward like it should. In the tank I saw food actually get sucked up into the front of the propeller and flung outwards. The only thing I can think of is that maybe the propeller is the wrong one since it was used I have no way of verifying this. Or maybe there is a spacer that I am missing that keeps the propeller out away from the housing? It seems that this propeller is closer to the housing than the others. Anyone ever have this issue? Oh and it is spinning the correct direction.

 

[ryanjohn1]

Have you disassembled it and really cleaned everything with citric acid or just good hot water

 

[Reephish]

Have you disassembled it and really cleaned everything with citric acid or just good hot water

It is very clean, spins freely, and looks practically new.
I'm going to compare it to the 6500 propellers when I'm doing a water change to see if I can spot any differences.

 

[ryanjohn1]

Is the propeller reversed maybe

 

[Reephish]

No, Its spinning the right direction. That was my first thought, I mean it is a very simple machine. Either they work or they don't and that is why I am stumped.

 

[Dburr1014]

Make sure the shaft is in the end.
Other than that, contact sicce.