Warren
Gold forum user
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- 3,872
This is my first expansion tank to take apart. My last car I was too big a wuss and just soldered on the out side. I got two others for my driver and a project car then happened on a dented tank with a missing overflow tub on ePay. After getting the tank home was a cake walk to split in half. Mark it well so you don't have to guess when re soldering
Working out the dents was easy too. Since the tanks are stamped drawn brass I did not pick and file away material and was very careful of over flattening and thinning out the brass. I used the same water based flux I use on copper repipes and some 50/50 I had laying about. Clean it twice and solder it once and its hard to use too much flux. I could have bought a Harbor Freight tester but the local Kragen loaned for free. Here is a pic of a laundry room invasion test site.Use soapy water for testing and be sure to plug hoses with something other then bolts. It was fun to fix now a coat of paint and on to the for sale swap section soon.
Working out the dents was easy too. Since the tanks are stamped drawn brass I did not pick and file away material and was very careful of over flattening and thinning out the brass. I used the same water based flux I use on copper repipes and some 50/50 I had laying about. Clean it twice and solder it once and its hard to use too much flux. I could have bought a Harbor Freight tester but the local Kragen loaned for free. Here is a pic of a laundry room invasion test site.Use soapy water for testing and be sure to plug hoses with something other then bolts. It was fun to fix now a coat of paint and on to the for sale swap section soon.