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Dry pump test for DDC - 1

post #1 of 7
Thread Starter 
Hi all i forgot to test my pumps before installing them ( 2 ddc-1 sanyo PCB modified pumps) due to their location it's going to be hard to remove them and test them and offcourse I would rather find out if one doesn't work before the leek test.

Can I just run them dry for 2 secs? There installed in a Series XSPC top so I can see if the impeller spins! smile.gif
    
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post #2 of 7
Bad idea, running pumps dry for any length of time is harmful to them. I would just add some distilled to your loop and test it with that. Anyway, it's extremely unlikely to have a pump that is defective and won't run, the more common thing to find is it leaks.... have to have liquid in your loop to check that anyway smile.gif
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post #3 of 7
Thread Starter 
Quote:
more common thing to find is it leaks

I did mod the pumps as stated above, new PCB... not a pro at soldering but i was quite happy with the job..... i am rather hopeful there is no leaks but I have to admit I have tons of potential leak points frown.gif just sooo many fittings !

What I'm trying to do is quantify the damage done! I'm well aware that it is not preferable but would 1-2 secs really cause any damage it's only like 120 revolutions max! redface.gif
    
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post #4 of 7
I once ran a new D5 dry (didn't mean to) for maybe 60 seconds at the most. Seemed fine once I got water in it.
About 9 months later it started making a noise on and off. About a month after that it completely died with a truly awful rattling noise.
Dont risk it.
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post #5 of 7
Thread Starter 
kk I'll just figure something out ty for the help guys
    
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3930k w/ XSPC raystorm @ 4.8Ghz Rampage Extreme 4 w/ EK WB HD 7970 w/ EK WB Parallel HD 7970 w/ EK WB Parallel 
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Samsung External SE-208 Phobya v.2 480 x 3 Phobya v1.2 480  Dual XSPC top w/ 2 x DDC -1 pump w/ DIYINHK Pum... 
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post #6 of 7
Hey, good work on doing the Sanyo mod.

Here's the easiest way to run the pumps without anything in the loop. Find yourself some 0W20 or 5W20 and place one or two drop atop of the white ceramic ball inside the pump. Next, place the impeller atop of the white ceramic ball. Turn easily the impeller back and forth for 10 seconds. Put the o-ring back in place, screw the tops back on and run your test. This should allow the impeller to run full out for 15-20 seconds easily without seizing the impeller up.

thumb.gif
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post #7 of 7
Thread Starter 
Thanks for the tip unfortunately there installed in such a way that removing them would take a silly amount of time I think I'll just run finish the loop and see if they both run smile.gif
Thanks for all the help Bmaverick wink.gif
    
CPUMotherboardGraphicsGraphics
3930k w/ XSPC raystorm @ 4.8Ghz Rampage Extreme 4 w/ EK WB HD 7970 w/ EK WB Parallel HD 7970 w/ EK WB Parallel 
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Samsung External SE-208 Phobya v.2 480 x 3 Phobya v1.2 480  Dual XSPC top w/ 2 x DDC -1 pump w/ DIYINHK Pum... 
CoolingOSMonitorKeyboard
2 x AC AQ5 lt w/ WB's 64bit windows 7 pro Samsung 2443BW+ Sidewinder X6 
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Optical DriveCoolingCoolingCooling
Samsung External SE-208 Phobya v.2 480 x 3 Phobya v1.2 480  Dual XSPC top w/ 2 x DDC -1 pump w/ DIYINHK Pum... 
CoolingOSMonitorKeyboard
2 x AC AQ5 lt w/ WB's 64bit windows 7 pro Samsung 2443BW+ Sidewinder X6 
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