MP40 QD Sound

[TheEngineer]

I picked up a used MP40 QD yesterday. I didn’t really need it but the price was too good to pass up. I took it apart and gave it a good cleaning. It’s on the tank now and it seems pretty noisy to me. I have it on the second lowest speed setting and I can hear it whirring. Is that normal? Doesn’t seem very “quiet drive”to me.

Maybe I did something wrong? I moved the alignment around a bit and that didn’t seem to help. Only thing I can think of is maybe I need a spacer. My tank is 10mm and this didn’t come with a spacer so it is just on the glass.

 

[TheEngineer]

 

[Crabs McJones]

I picked up a used MP40 QD yesterday. I didn’t really need it but the price was too good to pass up. I took it apart and gave it a good cleaning. It’s on the tank now and it seems pretty noisy to me. I have it on the second lowest speed setting and I can hear it whirring. Is that normal? Doesn’t seem very “quiet drive”to me.

Maybe I did something wrong? I moved the alignment around a bit and that didn’t seem to help. Only thing I can think of is maybe I need a spacer. My tank is 10mm and this didn’t come with a spacer so it is just on the glass.

Are you able to pinpoint if the noise is coming from the wet side or the dry side?

 

[TheEngineer]

Are you able to pinpoint if the noise is coming from the wet side or the dry side?

Not sure. I can take it out and try it dry to see.

 

[TheEngineer]

Seems to be the dry side

 

[TheEngineer]

Definitely the dry side. Took off the wet side and I can hear it.

 

[Crabs McJones]

Also, for 6 to 13mm glass the thin spacer is recommended, don't know if that would cause your noise though.

 

[TheEngineer]

Oh and apparently there is a spacer.

 

[Crabs McJones]

Definitely the dry side. Took off the wet side and I can hear it.

Oh.....that's not good.....without a tear down its hard to know exactly what it is on the dry side, could be a bearing or it could be out of alignment.

 

[KMench]

Last time mine made a noise like that in the dry side it progressively got worse, and then turned out to be the bearings that had gone.

 

[TheEngineer]

Something I can do?

 

[Crabs McJones]

Do you know how old the unit is? You can try contacting ecotech and see if there is anything they can do. Otherwise a tear down a bearing replacement of the dry side would be best bet.

 

[TheEngineer]

I took the front cover off the dry side and ran it. Does seem like a bearing issue. Can I replace it?

 

[TheEngineer]

Do you know how old the unit is? You can try contacting ecotech and see if there is anything they can do. Otherwise a tear down a bearing replacement of the dry side would be best bet.

2015 date on it. Are there instructions for the bearing replacement?

 

[KMench]

https://www.reef2reef.com/threads/vortech-mp40qd-motor-disassembly-instructions.346539/

This is for a non-QD, but I figure you can use your engineering skills to make it happen ;)

 

[Crabs McJones]

2015 date on it. Are there instructions for the bearing replacement?

There isn't a set of instructions as Ecotech i'm sure wants you to buy a new dry side, but there are a couple videos i've used as a guide and also this thread:
https://www.reef2reef.com/threads/vortech-mp40qd-motor-disassembly-instructions.346539/


These are for an MP10 but the tear down and replace is similar

 

[Crabs McJones]

https://www.reef2reef.com/threads/vortech-mp40qd-motor-disassembly-instructions.346539/

This is for a non-QD, but I figure you can use your engineering skills to make it happen ;)

If memory serves me right (and it may not, i am getting old after all ;) ) the QD part of it was actually something built into the controller, because you were able to upgrade your mp40 from the non qd to a qd just by buying a new 50$ controller and using the same dry side and wet side
https://www.bulkreefsupply.com/mp40wqd-upgrade-driver.html
"Driver upgrade or replacement for the VorTech pumps from EcoTech. Convert your VorTech EcoSmart controlled pumps to the latest in noise-reduction technology with the QuietDrive driver! Also can be used to replace a damaged or faulty driver on your VorTech QuietDrive."

 

[TheEngineer]

Got it opened pretty easily. Issue is that I think the bearing is now pressed onto the magnet. There’s an Allen head screw but it seems to turn the whole thing. There isn’t a head of any kind on the other end.

 

[Crabs McJones]

Got it opened pretty easily. Issue is that I think the bearing is now pressed onto the magnet. There’s an Allen head screw but it seems to turn the whole thing. There isn’t a head of any kind on the other end.

Wow that was fast. Now the tough part, finding new bearings

 

[TheEngineer]

Oh, scratch that. I got it. Now I need to figure out what bearings these are.