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Is there anythiing on the market right now that will remove and loosen rust without dissolving the underlying steel? I know there was something a few years back, but I don't remember what it was called.

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I am restoring a Buffalo Forge Company hand crank impeller blade blower that has not been used in close to 20 years. The brass bushings are good and I was able to get all the spindles moving again. Now it is just a matter removing the layer of heavy rust on the inside of the crank housing, as well as cleaning up the outside of everything. I will get pictures of everything after this weekend (Romantic trip to the beach starting tomorrow).

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Rinse the case out with acetone, then fill it with Coca-Cola. Let sit overnight or until the gears turn freely and the rust has turned to sludge, drain, rinse with hot soapy water, rinse again with acetone, then fill with a light oil like transmission fluid or 0w-20 motor oil. Coke is higly acidic! It's the phosphoric acid and carbonic acid that does the work, along with a little bit of tannin. Just like Naval Jelly but cheaper and more liquid. ;)

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