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Cleaning Radiator?

post #1 of 10
Thread Starter 
I purcahsed a second hand Stealth GT 360mm radiator, but when i look through the bab-holes there is green stuff inside

how should i clean it? running distilled water through it doesn't help
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post #2 of 10
Boiling distilled plus a little vinegar should do the trick me thinks
post #3 of 10
Thread Starter 
Boil it in a kettle or a pan? (or any?)
and is it just a few drops of vinegar?
and how long to i leave it for ?

thanks feel like such a noob at this WC stuff

and + rep
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post #4 of 10
I'd fill it with as much white vinegar as you've got. Seal the barb holes with your fingers and shake. Shake for 5 minutes then let it sit for another 5. Empty out vinegar then see what its like. If it needs more, put more vinegar in, else rinse out 3-4 times with distilled water.
post #5 of 10
Quote:
Originally Posted by Willhemmens View Post
I'd fill it with as much white vinegar as you've got. Seal the barb holes with your fingers and shake. Shake for 5 minutes then let it sit for another 5. Empty out vinegar then see what its like. If it needs more, put more vinegar in, else rinse out 3-4 times with distilled water.
As Willhemmens said, pour some vinegar into boiled (hot) distilled water and fill the radiator with it. Shake, let it sit, rinse, shake, let it sit rinse ... You won't believe your eyes when you see the color of it. Good luck...
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post #6 of 10
If the distilled water+vinegar doesn't do the job, run out to Walmart and get the Prestone Super Flush in the automotive section for under $3. This will clean the RAD since that's the purpose of the flush liquid.
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post #7 of 10
Thread Starter 
Ok, So i connected the garden hose to one end of the radiator and put it on full....clear water just came out

then i shook it with de-ionised and it was still clear water coming out

THEN i got some distilled malt vinegar, left that in there for a few hours, let it out and it was BLUE?? (previous user must have used blue coolant)

then to get all the vinegar out i did the hosepipe thing for a few mins

THEN i put distilled water through it to clean out all the tap water

so now i am sure it is clean - can still see some green stuff inside, but it just wont come off, its not doing any harm.
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post #8 of 10
First, if the inside of the radiator is green, it could be just oxidized copper (which is green), not necessarily "gunk." It's also not a bad thing (it sort of is, but it's a reality of using copper), and you can't really get rid of it entirely.

The water usually comes out blue because the oxidization of the copper is blue/green, and when you clean it out with vinegar, it usually comes out bright blue, not green, but it's not coolant, just oxidization from the copper.

the stuff to look for is hard stuff, dust looking stuff which would settle in the bottom of whatever bowl you drain your radiator into. Make sure to flush the radiator thoroughly with distilled water after washing with vinegar (especially if you used straight vinegar.
Edited by Dr.GumbyM.D. - 5/2/11 at 10:55am
post #9 of 10
Thread Starter 
Oh that explains, yeah there where black bits (looked like burnt bits of paper) coming out when pouring out the vinegar
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post #10 of 10
Edited.
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