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Old June 17th, 2011, 12:44 PM   #1
cmays03
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Default something to dissolve white chucks of something in antifreeze

I bought a kia sportage that was overheated and I pulled it apart and there is some kind of white chucks in the cooling system. head is getting reworked so i just need to find something to dissolve the chucks in the block part. I was thinking boiling water but dont think it will work. so I was thinking of an acid of some kind. anyone know of something that would work. I am thinking of putting some of the chucks in a few jars and trying a few different things. just want to see what someone else thinks. thanks
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Old June 17th, 2011, 01:02 PM   #2
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It's possible that the white chunks are calcium or lime deposits.... I would start with some vinnegar and those white chunks in a small container.
It that works, then you can use it in the entire block and it won't hurt anything.
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Old June 17th, 2011, 01:02 PM   #3
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old skoolers call it white death when its in a carb.Aluminum has begun to erode and makes crystalline chunks that are all bad. abrasive, too. scraps a carb. Cooling system, go for what seems to work. use distilled water in system, wont happen. jmho, ric
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Old June 17th, 2011, 01:05 PM   #4
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thanks guys had someone tell me clr. gonna try a bunch of stuff. i'll get it cleaned out tomorrow for sure. thanks.
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Old June 18th, 2011, 08:44 AM   #5
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well nothing worked that i tried. gonna have to try something else now.
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Old June 19th, 2011, 06:01 PM   #6
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sulfuric acid should work. my brother uses it in steel cooling lines at work. just do a little test first and flush it real good afterward.
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Old June 19th, 2011, 06:29 PM   #7
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Well I got most of it out with pressured water out of a sprayer I have on my quad then I used air and it got a lot of it out. If there is any left it's hidden really well.
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Old June 19th, 2011, 07:44 PM   #8
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Running some red kool-aid through can help also
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Old June 19th, 2011, 07:45 PM   #9
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Quote:
Originally Posted by Sandals View Post
Running some red kool-aid through can help also
That stuff can do anything.
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Old June 19th, 2011, 11:05 PM   #10
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Quote:
Originally Posted by junkyardjon View Post
sulfuric acid should work. my brother uses it in steel cooling lines at work. just do a little test first and flush it real good afterward.
sulfuric acid can eat through aluminum fairly quickly, especially the thin aluminum used in cooling systems
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Old June 20th, 2011, 12:06 AM   #11
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muriatic acid mixed with water may work gentler than sulfuric acid.
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Old June 20th, 2011, 09:08 AM   #12
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There are a variety of commercially available acid flush products out there for this. They usually have Oxalic acid and then a second step to neutralize any acid left.

Usually its something like:

Put in the acid and water, close the system, run it for a while to get good and hot, like an hour or so.

Drain, and rinse it out, then fill again with the neutralizer and run it more. Then drain and rinse again.

The refill with coolant and you're on your way..
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Old June 20th, 2011, 09:10 AM   #13
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BTW, a lot of people say the heater core doesn't like an acid flush, so take that out of system, just loop the hoses. Manually flush the heater core with a hose.
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Old June 20th, 2011, 09:13 AM   #14
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That would work if the cooling system was together but it's all tore down so I can fix the head and replace the radiator and heater core. So I was looking for something to just do the block while it was tore down. I got most of it out to where I'm comfortable putting it back together. Then I might run a cooling flush thru it.
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Old June 20th, 2011, 09:20 AM   #15
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Yeah I heard that also
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