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cleaning a radiator while out of truck ?

sweetk30

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i have a nice rad from a parts truck. the motor was bad and thay had sealer in it along with other stuff. the rad has a white chunky film in it but looks like close to new or super clean. its a brass/coper style unit. what can i use fill it and let sit then fluch it out with a hose to remove this junk. thanks for any input.
 
sweetk30 said:
i have a nice rad from a parts truck. the motor was bad and thay had sealer in it along with other stuff. the rad has a white chunky film in it but looks like close to new or super clean. its a brass/coper style unit. what can i use fill it and let sit then fluch it out with a hose to remove this junk. thanks for any input.

Seem to recall that Prestone makes a goop called Radiator Flush... hmm... yep:

http://www.partsamerica.com/ProductDetail.aspx?categorycode=3285&mfrcode=PST&mfrpartnumber=AS107

-- A
 
muriatic acid... available at the hardware store.. mix it 50/50 with water.. Let it sit in there about 15 minutes...
 
If its out already, take it to a radiator shop and have them boil it out. A good shop will also pressure test it, so no surprises when you install it.
 
An dif they are really good, they'll flow test it, which is the only way to make sure a radiator will actually cool as its supposed to.

You will never get all the crud out of a radiator with flush, acid, vinegar, whatever you want to try. BTDT, having pros boil it may work, as long as its in good shape and as mentioned doesn't leak under pressure.

You can't see the condition at the bottom of a radiator, and even if it looks good up top, down low may be packed full of corrosion.
 
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