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06-24-2012, 08:11 PM | #1 |
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Join Date: Mar 2011
Posts: 14
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Leaking gas tank
my 52 custom line sedan has developed a leak at the drain plug on the gas tank I used a sealant last year but it has started dripping again any suggestions as to a sealant or gasket.
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06-24-2012, 08:21 PM | #2 |
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Location: Oregon
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Re: Leaking gas tank
Is it leaking through the drain plug threads? What did you use to seal it?
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06-25-2012, 04:55 PM | #3 |
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Re: Leaking gas tank
It is leaking through the drain plug threads, I don't recall the name of the sealant but it was suppose to work for diesel and gas didn't last but a year and a half.
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06-25-2012, 05:45 PM | #4 |
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Re: Leaking gas tank
Use Teflon tape but keep it back off the first two threads. G.M.
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06-25-2012, 06:07 PM | #5 |
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Re: Leaking gas tank
I bought the 5 oz tube of "E-Z Turn Lubricant" and used it to seal my fuel pressure gauge and it actually worked. I only used a dab of it but I figured it was worth having, despite the cost. http://www.aircraftspruce.com/catalo...ezturnlube.php
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06-25-2012, 07:11 PM | #6 |
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Re: Leaking gas tank
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06-25-2012, 07:14 PM | #7 |
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Re: Leaking gas tank
I use Tite Seal T25-66 it is a medium weight paste and it has worked on any thread I ever put it on. We used it extensively on Subs.
Don |
06-25-2012, 08:12 PM | #8 |
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Re: Leaking gas tank
Is there any possibility that the threads have a crack in the fitting? I wouldn't spend to much time on sealing the leak if you have a cracked fitting.
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06-25-2012, 08:34 PM | #9 |
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Re: Leaking gas tank
The plug is a pipe thread. I would never use teflon tape on a pipe thread or around gasoline. If you used teflon tape the first time you may have split the fitting in the tank. I've seen a transmission case crack when the plug had teflon tape on it. It allowed the plug to turn too easy into the threads and crack the case.
Last edited by TJ; 06-25-2012 at 10:41 PM. Reason: add info |
06-25-2012, 08:48 PM | #10 |
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Re: Leaking gas tank
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06-25-2012, 09:28 PM | #11 |
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Re: Leaking gas tank
If you can remove the plug, I would chase the threads and replace the plug and coat it with a Prematex Form a gasket #3 which is designed for todays modern fuels. You may have slightly loose threads ( or worn ) on the pipe plug.
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1939 Fordor Deluxe 1939 Ford Coupe Std 1940 Ford pickup Nothing in life is to be feared; it is only to be understood. Last edited by gmc1941; 06-25-2012 at 09:38 PM. Reason: More info |
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