Why is my MJ1200 with SureFlow mod doing this?

mike31154 · #1 05-26-2009, 04:45 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 · #2 05-26-2009, 05:13 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.

Tom R · #3 05-26-2009, 05:30 PM

I could not stop the larger propeller from going the wrong way. I tried inserting washers to take up the slack I finally glued it and even the it would go the wrong way. I finally switched to the smaller propeller and it has worked ever since. It must be something to do with the torque on the large propeller and the wear and tear on an older MJ1200. Have you tried a new MJ1200 to see if that works. I believe MJ1200 will run in either direction. I have just turned the plug to reverse the flow however after a period of time the pump will reverse direction again.

I would not buy another one of these mod kits. I contacted the maker and they sent me all new parts in an effort to get it going.

Tom R

Myka · #4 05-26-2009, 05:33 PM

But Mike, it doesn't work at all when the propeller is turned around the right way. I will just wait for the smaller prop, and see how that works. Either way, it will still make a good salt mixing powerhead!

Thanks for your review Tom! I also will not buy another one!

mike31154 · #5 05-26-2009, 05:38 PM

Quote:

Originally Posted by Myka

But Mike, it doesn't work at all when the propeller is turned around the right way. I will just wait for the smaller prop, and see how that works. Either way, it will still make a good salt mixing powerhead!

Thanks for your review Tom! I also will not buy another one!

Yeah, I guess if it works in the current mode, let it be. Might be a viable solution for other mod owners.

mike31154 · #6 05-26-2009, 05:36 PM

There we go, more input from another actual Sure Flow mod owner, that's what we need, not wild theories from schmucks like me. Sounds like that large prop was just not meant to be.