Is my MCP655 functioning correctly? [video]

funky_llama

funky_llama

funky_llama

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Ok so this may turn into another one of those "Hi I'm a water noob thread" so apologies in advance. I've spent the last week getting all the bits and pieces for my loop together. I set up my radiator and pump today to give the radiator a flush as suggested by Thermochill. What is bothering me at the moment is the apparent lack of flow. From everything I have read the MCP655 is a hi-flow pump but mine seems very very low to me. I'll explain what kit I have here.

I am using 7/16" XSPC white hose.
Bitspower 5/8" compression fittings.
MCP655 Pump
Thermochill PA120.3 Rad

Not hooked up at the moment I also have a HK 3.0 (1366) and EK 5870 Plexi block and EK Multi 250 Res.

Heres a video of it at the moment next to my kitchen sink. Please tell me if I am imagining things or is something not right. The pump is set to "5" which is the highest it goes to. I have also tried the other settings. And yes I definitely have the speed adjustment pointing in the right direction (First mistake I made :D) I have tilted the rad and I dont think its an air lock. I know you can see a few bubbles in the vid but I have run it for a good long time and those go away. Still flow seems a bit weak to me. And before anyone comments yes that is me getting the camera wet at the end but it survived its little shower :)

http://www.youtube.com/watch?v=C-DJqXGF0MM



 
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have you turned up the potentiometer on the back of the pump?

check for any kinks also

another possibility is something is blocking the flow somewhere (maybe inside the rad) - worth filling the rad with some water and blowing as hard as you can on the intake pipe and see if you can move the water faster
 
i've got the same pump, and in my res i get a nice 'wave' spraying up the front of it due to the pressure.

i'd say you have a blockage
 
I don't see a problem with that.

If you are really concerned , time how long it takes to fill a litre container at the outflow. You can then work out the flowrate/hour.

Looks fine to me though :)
 
Ok to rule out a blockage I connected up just the pump. I also opened it up and cant see anything that shouldnt be in there. Definitely not making any waves :/ I am off to work now but think I'll talk to the shop where I bought it later.
 
Is the pump making a dentist drill type noise - start around 4 and is loud at setting 5.
The photo shows it on 5

Not had my D5 running like this - and it's hard to get some perspective as a sinks / funnel are massively larger volumes that most loops. A tripple rad/block/res is usually ONE litre.
Plug the ek res into the end - them we can compair like for like.

I'd go with Mrdbristol - but the lack of pump noise on the video make me think it's not on full power.
 
It looks fine to me. as far as i remember mine looks identical when running open loop like that. Also mine is just as quiet at full tilt.

Your test really isn't a good indicator of closed loop performance as the pressure/flowrate charactersitics will vary dramatically compared to the open loop you are running atm -as it stands most of the system will be at near enough atmosphereic pressure no matter what the pump is set to.
 
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is the potentiometer plastic (the red bit) connected to the pot inside? when i got mine it was snapped off, but i pulled it out and used a small screw driver to make sure it was on full.

vertica said:
It looks fine to me. as far as i remember mine looks identical when running open loop like that.
Click to expand...

i've only ever ran mine in a closed loop, so i suppose the pressure was higher than whats in the video :)
 
twist3d0n3 you are a star. The pentomiter is very loose. After some jiggling I managed to get it to turn up the pump speed and now I have this quite awesome looking vortex :D



I have to say I am a little disappointed to find a problem like this with such an expensive pump. Tempted to return it but a large part of me wants to get on with my build this weekend. And dont worry there will be another thread to follow with full pics and juicy details of my build.

Heres a sneak peak of the specs.
Currently running on air:
i7 920D @ 4Ghz
Gigabyte EX58-UD5
6gb Patriot PC12800
Powercolor 5870 (clocked lightly)

Thanks to everyone for your replies.
 
haha funny that :)

yeah i know what you mean, although the plastic is flimsy as hell; the 'shaft' (oh err) i took out of the hole was easy to snap so i think they've not invested in it heavily (to be fair, it's a lame bit of plastic :D)

don't bother returning it mate, just use a thin screw driver (or glue it back in) if you're that bothered. i've stuck mine on full and left it

that vortex looks awesome :)

EDIT

look forward to a full build log sir ;)
 
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