Why is my MJ1200 with SureFlow mod doing this?

Myka · #1 05-25-2009, 05:01 PM

Ya, I don't understand why it's spinning backwards, and ALWAYS spins backwards, not just on startup. I can't even get it to spin the right way if I stick my finger in it (which hurts btw).

The only reason I bought it is because I was in need of some cheap water movement for now until I buy a Wavebox and/or VorTech or...?

Oh, and no it's not on a wavemaker.

mike31154 · #2 05-25-2009, 05:17 PM

Ok, now you've got me confused. Always spins backwards? So it is currently drawing water through the front and pushing it out the sides/cage? I can't conceive of how that would work without the prop continually hitting the tab since the shaft & prop would be moving towards the front of the cage & tab? Where exactly is this tab located, at the front end of the cage, perimeter?? Should be a 50/50 chance that the thing will spin in either direction at start up and half the time not even hit the tab on start up. Just too difficult to visualize what you're describing.

Delphinus · #3 05-25-2009, 05:18 PM

Clearly, she's plugged it in upsidedown. I'll refrain some making any blonde references now.

mike31154 · #4 05-25-2009, 05:23 PM

That's it, her stunning good looks are making the electrons run backwards.

Myka · #5 05-26-2009, 04:26 AM

Well, it was freakin difficult to get that propeller off the shaft and turn it around, so I'm assuming that no one took it off and put it back on backwards, so that makes me think that the propeller is spinning in the opposite way that is was intended. If you look at the propeller from the front it is spinning counter-clockwise. It spins the same way every time I plug it in.

Oh, and the frickin thing is going to be banned to salt mixing as soon as I find a replacement. It is obnoxiously loud. Grr.

fkshiu · #6 05-26-2009, 05:18 AM

Quote:

Originally Posted by Myka

Well, it was freakin difficult to get that propeller off the shaft and turn it around, so I'm assuming that no one took it off and put it back on backwards, so that makes me think that the propeller is spinning in the opposite way that is was intended. If you look at the propeller from the front it is spinning counter-clockwise. It spins the same way every time I plug it in.

Oh, and the frickin thing is going to be banned to salt mixing as soon as I find a replacement. It is obnoxiously loud. Grr.

The flat side of the propellor should be in front.

If it is facing correctly, then you should try shaving the propellor down a bit with a dremel tool to make it smaller.

Myka · #7 05-26-2009, 05:25 AM

Oops, I forgot to mention that it is pushing water out, not sucking it in. It has never made the water go backwards. The tabs get in the way, and don't allow the prop to spin that way.

fkshiu: I'm not sure what you mean about the flat side in front? Do you mean the flatter edge of each petal should be leading the spin, not following?

The guy I bought it off is sending me the black propeller, so hopefully that one will work better.

mike31154 · #8 05-26-2009, 03:45 PM

Quote:

Originally Posted by Myka

Well, it was freakin difficult to get that propeller off the shaft and turn it around, so I'm assuming that no one took it off and put it back on backwards, so that makes me think that the propeller is spinning in the opposite way that is was intended. If you look at the propeller from the front it is spinning counter-clockwise. It spins the same way every time I plug it in.

Oh, and the frickin thing is going to be banned to salt mixing as soon as I find a replacement. It is obnoxiously loud. Grr.

OK Myka, going by your current description, it's working as intended, pushing the water through the front of the cage. Looking at the spare hobby propeller I have in front of me, if it's built the same way as yours, counter-clockwise is the way you want it to spin since that will push the water which is what you want. I'm not sure what makes you think this is the opposite way as intended. How about taking a quick close up photo of the shaft & prop to show us what it's looking like?

Myka · #9 05-26-2009, 04:13 PM

I think it's going the opposite way it's supposed to because when I have the propeller fitted the proper way it hits the tab which is apparently intended to stop it and make it go the other way.

Here it is now:

This pic I'm hoping you can see the tab I'm talking about on the left side of the inside. You're looking at the end the water flows out of.