Millennium 2000 Pump

A quick question on the proppelar of the pump...I dont know what it is called...must the magnet and the fin be a unit as it does not pump but when you switch it on then their is a rumbling noise.....shit its difficult to explain without a pic..how do i upload from my mobile

 

Typically it is a unit of magnet shaft and the impeller ... I have seen on some aquarium pumps that it is all a sold unit i.e. no moving bits, then I have also seen that the impeller is free to move in one direction but not the other so that when the shaft plus magnet rotate you the pump works. A last design was that the magnet rotated on the shaft but that it would lock the impeller when energised.

In-short at some point your impeller needs turn when power is applied.

Sorry I tried to google for your pump but came up with this ..

Don't think this is what you have in your tank.

Later Ferdie

 

Ah wait .. Popular Aquarium Systems Millennium 2000 Filter Replacement Impeller Assembly Questions, Answers, Tips & Manuals - Fixya


that looks like loose shaft, fixed blades to magnet (or locking in one direction to magnet) ...

Later Ferdie

 

Ok great I will glue them together impeller and the magnet luckily i saw it otherwise i was doomed

 

Does it look like something was broken on the impeller or just wear and tear ?

could be that the impeller needs to be loose in one direction but locked in another rotational direction.

Later Ferdie

 

There is a rubber grommet on each end use a fork to remove it by putting the shaft throug a forks teeth doesnt matter which rubber comes off first .On the internal part is a white sleeve that pushes through the magnet and is then heat pressed on the other end. When the pump is started it acts like a torque converter for the motor to get up to speed first before the blades are turned.I think due the chalk in the water it has build up some chalk on the shaft and caused the heat pressed section to break off causing only ghe magnet to rotate and not the shaft. Temporarly fixed it with a hot glue gun but only use a tiny bit otherwise the glue is squeezeed in between the shaft and then the torque converter function does not work...I would suggest some preventative maintenance just remove that rubber gromet clean the shaft and put back again. As it is a second hand pump I dont know how old it is. I am glad its working again

 

Cool - glad you got a solution with hot glue .. not sure how long that will last, but hey as long as it spins.

Later Ferdie