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Is something wrong, 2 d5 pumps not enought flow? -- Pump Kicking -- Pics and Video - Page 7

post #61 of 104
Looks fine, thats where you want it...
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post #62 of 104
Thread Starter 
now what?... im out of option here ira... the coolant it could be that, but at the same time why the green one is doing the same thing? the green is a lot tinner, just like water...

so at the same time it could be that, but then ill still have problems with the green loop.....


Edit: the pump does not kick at lowest speeds, and sometimes picks up from there and looks like it solved the problem, but after it's off for a while starts with the same thing again...
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post #63 of 104
Quote:
Originally Posted by MadeInBrazil View Post
now what?... im out of option here ira... the coolant it could be that, but at the same time why the green one is doing the same thing? the green is a lot tinner, just like water...

so at the same time it could be that, but then ill still have problems with the green loop.....


Edit: the pump does not kick at lowest speeds, and sometimes picks up from there and looks like it solved the problem, but after it's off for a while starts with the same thing again...
Is that coolant as thick as it looks in the pic's? It looks like syrup, you can always drain it into a jug and reuse later if you want to...When you take the t-line out I would just put distilled back in then...What you are describing, the pump making noise and cylcling up and down sounds like it could be some cavitation going on...Your voltage is fine so you don't have to worry about that now....
Your just going to have to play with it a little now Made till you figure it out...I don't think its anything major its just configuration or coolant viscosity, or some other little thing..

EDIT: Don't be afraid to tear into it and try some different configs made, your not going to hurt it...Play around with it and you'll get it figured out..Like I was saying just catch that high $$$ coolant in some empty water jugs and you can always reuse it later, it will be fine......And let us know how its going with it, we can always try something else....
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post #64 of 104
Thread Starter 
Quote:
Originally Posted by ira-k View Post
Is that coolant as thick as it looks in the pic's? It looks like syrup, you can always drain it into a jug and reuse later if you want to...When you take the t-line out I would just put distilled back in then...What you are describing, the pump making noise and cylcling up and down sounds like it could be some cavitation going on...Your voltage is fine so you don't have to worry about that now....
Your just going to have to play with it a little now Made till you figure it out...I don't think its anything major its just configuration or coolant viscosity, or some other little thing..

EDIT: Don't be afraid to tear into it and try some different configs made, your not going to hurt it...Play around with it and you'll get it figured out..Like I was saying just catch that high $$$ coolant in some empty water jugs and you can always reuse it later, it will be fine......And let us know how its going with it, we can always try something else....
im trying im trying... already got a way to turn the rads and lay it down flat... took the t line out of the blue loop... tomorrow ill add destilated water to see whats going on...

also what do I need to make my own coolant... ill probably place an order at petras for some more tubbing and coolant needs.... is there anything else im missing?

my temps at idle for about 30 minutes was 30-33 c room tempature here right now is 80f.. is this good? should I change something to improve it?

now about the res... here is the thing.. help me out on this one, I want to change the setup by taking the T line out right? so that means I have to fill my loop trough the bay res... the bay res I tried to put all the way on top of my case, but then is no way I can move anything to fill it... If I put between one of the cd room or below them i can push them backward and fill from there, but them wont be too high... any better ideas?

like u said "dont be afraid", so im starting tearing things down until I really got everything working, them I can put everything back together again and leave in peace lol... but i guess thats the easiest way after all and the better way actually....

thanks for the help... ohhh please give me some input on that coolant...

thanks again.
made.

Ill be back tomorrow.... lol
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post #65 of 104
Good stuff, that video and pics help alot!

Was that voltage test done while it was running and while it the wierd surging started to occur. If the PSU is having some sort of voltage drop, that wouldn't show up until it was under load.

Also does it happen if you only plug in one loop. The more I look at it, I'm with IRA in thinking maybe something with the power. Maybe switch the power over to one of the other rails if your PSU has multiple rails.

With the fluid flow, I don't think it's air like I was thinking. I'd keep looking at the power.

There is always a chance you could get one bad pump, but two is almost unheard of....got to be a power issue.

Maybe the particular 12V rail is fine while cool and throttling as it warms up. The D5's do have some circuitry in them that protects them from overvolting and will throttle themselves. I noticed this in my testing where I would be at 13.0V and peak flow rate, and as I quickly turned up voltage the pump would first respond by speeding up, but then it would adjust and slow back down to the same speed at 13.0V.

Anyhow great work on getting after the issue, you'll get it..just keep it up!!
    
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post #66 of 104
Are the pumps that are surging the pumps that are outside the case ?

If so, it could be something to do with the 12 volt rails out there ... as Martin pointed out.
I see that the fans are also connected to that supply via a SunBeam rheostat.
There may be too much draw on that particular supply rail with the rheobus pulling for all of the fans. You may want to try the pumps without the rheobus plugged in.
Also, how do you have the power supply rigged for turning it on and off ?

For my own external power supply, I needed to put in a 10ohm 25watt wire-wound resistor across the 5volt rail so that it would keep the supply from spiking and/or surging on the 12volt rail. It's a known issue with some switching power supplies.
post #67 of 104
Quote:
my temps at idle for about 30 minutes was 30-33 c room tempature here right now is 80f.. is this good? should I change something to improve it?

now about the res... here is the thing.. help me out on this one, I want to change the setup by taking the T line out right? so that means I have to fill my loop trough the bay res... the bay res I tried to put all the way on top of my case, but then is no way I can move anything to fill it... If I put between one of the cd room or below them i can push them backward and fill from there, but them wont be too high... any better ideas?
Well 80f is 26.67c so your delta from idle to room ambient was from 3.33- 6.33C, thats not bad at all to start....

I'd just put some straight distilled in it for now and see what it does..Just to see if the coolant is part of the problem, the stuff looked like syrup to me...

Leave your t-line in for now if its that hard to change out...Use distilled and see if it still does it, then we can go from there..We need to eliminate one thing at a time.....

I like to mix this at 10 or 11 -1 with distilled..Pentosin..Then a couple of drops of this for a biocide..PT Nuke..Then a ounce of glycerin for a water wetter and a drop or two of blue "Dawn" dish-washing soap, its a surfactant or water wetter also...You don't want to use to much of either one of those or it will hurt temp's....If you have a VW or Audi dealership near you, you can get Pentosin cheap there, its just anti-freeze, the blue is G11 and the red is G12.....

EDIT: There right about having it under load when you metered the molex, you did have it running then didn't you?
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post #68 of 104
Quote:
Originally Posted by ira-k View Post
...you can always drain it into a jug and reuse later if you want to.....just put distilled back in then...I don't think its anything major its just configuration or coolant viscosity, or some other little thing..

I said that back on page #1. Guess a + rep 25 gets no respect around here
I gotta go find my Aretha Franklin albums
post #69 of 104
Quote:
Originally Posted by TonyL222 View Post
I said that back on page #1. Guess a + rep 25 gets no respect around here
I gotta go find my Aretha Franklin albums
Did you see the pic of his pump a page or 2 back? That blue coolant is hanging on the sides of the pump socket like syrup, I hope its not as thick as it looks......

You just have to rule out one thing at a time with a new guy...Its hard to trouble shoot long distance...Things I would do with-out thinking about you have to remember to tell them...Thats why I encourage all the new guys to get in here and help each other out, its a learning process and the things the more veteran WC'ers take for granted or don't even think of anymore a newer guy will remember to share it......
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post #70 of 104
Quote:
Originally Posted by MadeInBrazil View Post
thanks for that, i have order some parts from them before.... =] but i didnt know they have that....

I ordered and recieved those holders for the res and I must say they are much better.
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