Rogillio Posted May 24, 2015 Share Posted May 24, 2015 1926 Dodge.....never been restored....say with fuel in tank for 6 years.....I dump the brown looking smelly crap out of the tank. I googled how to clean a tank.....read about using vinager. Bought 4 gallons and let soak overnight. More dark brown came out. But when I look down in the tank the bottom is covered in black crap. I pot some rocks in and tilted back and forth til My arms were exhausted. More crap came out. Bottom still coveted. I was reluctant to use carb/parts clearer as that stuff is $27 a gallon....then it occurred to me, I can use the stuff and then pour it back into the gallon can.IDK if this is gonna work or not. Tips and suggestions welcome. I have a pressure washer but that would only clean the end of the tank where the gas cap is. Link to comment Share on other sites More sharing options...
Waldren Posted May 24, 2015 Share Posted May 24, 2015 After trying many attempts at cleaning it myself and failing I took my 42 Lincoln tank to a radiator shop and he cleaned and sealed it. Cost $180. with a guarantee that the new ethanol gas will not hurt it. It has been stored 45 years and I have been working on it the last four. It now has plain gas no ethanol in the tank runs great. Lee . ps he had the tank for 2 weeks. Link to comment Share on other sites More sharing options...
28 Chrysler Posted May 24, 2015 Share Posted May 24, 2015 Most radiator shops should be able to get your tank cleaned.With something like vinegar you will need to let it steep for a few days but is more for etching.. Acetone or other stronger petroleum solvents should desolve your tarish varnish. 1 Link to comment Share on other sites More sharing options...
Guest AlCapone Posted May 25, 2015 Share Posted May 25, 2015 I would remove it and take it to a rad shop. Get it done right the first time. Wayne Link to comment Share on other sites More sharing options...
cahartley Posted May 25, 2015 Share Posted May 25, 2015 Paint thinner.......the cheapest stuff you can find.But without some physical intervention it's not going to be easy. Link to comment Share on other sites More sharing options...
GK1918 Posted May 25, 2015 Share Posted May 25, 2015 Don't laugh , but along with a couple quarts of lacquer thinner and 3/4" stone, I stuck the whole thing in a cement mixer (tied down in there)run for awhile then turned the tank around then a good soapy water wash. Perfect. sam Link to comment Share on other sites More sharing options...
carbking Posted May 25, 2015 Share Posted May 25, 2015 If at all possible: replace with a new North American reproduction tank. Next best option is the afore-mentioned radiator shop. Jon. Link to comment Share on other sites More sharing options...
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