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I finally have my 78 up and running, but after putting a hundred miles or so on, and a fresh tank of gas, I began to smell fuel in the garage. First thought was carb floats leaking so I dropped the oil and found nothing. When I pulled the right side cover I could see gas dripping from the fuel tank drain plug, and riding the frame (hence no drops on the floor). I have now completely drained the tank, but am wondering what I can use to seal the drain. Right now there is just the plug, and a metal washer (I'm thinking of looking for a Neoprene washer to stuff between these two), or does anyone else have any suggestions for this?
Thanks!
 

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It should have a copper or aluminum washer on it. You might also use a thread sealer on it that is impervious to gasoline.
 

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Copper crush washer and teflon tape on the threads should do it.
 

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JB weld and rope
 

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if you have a copper washer you can anneal it by heating red hot and quenching then turn over and reinstall, also tef. tape on threads only can help.:action::waving: good luck
 

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Discussion Starter · #10 ·
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Is Teflon really safe to use? I only ask because I know products like silicone, and others will actually melt and cause more damage floating around inside the tank. I was hoping I could run to the local autozone and find a copper washer (maybe for the oil drain plug from a VW) to help seal this up?
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There are two types of teflon tape - the white kind that you find at the hardware store for plumbing, and the yellow kind, which is specifically designed for coming into contact with petroleum products. Gasoline will dissolve the white tape. Use the yellow teflon tape on the threads, and your leak should disappear.
 

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Discussion Starter · #12 ·
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Thank you everyone! I have used the yellow Teflon taoe, and after refilling the gas tank have not had any leaks yet (2 hours)! Now if I could just get the smell out of the garage!....
 

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Thanks for posting the fix, too many never do.
BTW, where the heck is Orem?
 
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