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#41
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I decided it seemed too good to be true that I found no leaks on my first test. I had used a balloon connected to the outlet provide the pressure and soapy water to try to find the leaks.
Second test using more pressure indicates a number of pinhole leaks. ![]() I don't want to use the tank sealants, they sound like they all eventually fail. So, to fix the pinholes do you think I need to drill them out or just re-weld over them? Any suggestions welcome.
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Jeff |
#42
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Jeff,
just pop a 1/8th hole through and weld it up again. Purge the inside of the tank with argon first. Will
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Here to learn. William Pointer |
#43
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If I didn't purge with argon for the original fab not sure why I need to purge now?
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Jeff |
#44
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just habit, I always purge tanks when welding them, especially if they've ever contained anything remotely flammable, but if you didn't then you don't need to now. Purge the next one and you'll get fewer leaks.
Will
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Here to learn. William Pointer |
#45
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This one has never had anything in it. I have the stuff I need on the way to purge so I might as well. Just didn't think it was necessary with aluminum.
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Jeff |
#46
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Will
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Here to learn. William Pointer |
#47
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I got impatient and went ahead without argon purge. Used a burr to get close to the bottom and then rewelded. Found probably 20 pinholes, mostly pinhole from craters due to poor tapering technique at the end of a bead. All patched up and ready to go.
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Jeff |
#48
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Will
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Here to learn. William Pointer |
#49
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Allybill, what is making tape?
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Sean |
#50
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Good question...
I will be getting the bike this tank is for on the road. After that it could be an alternate tank or maybe front fender for the same bike. IMG_0858.jpg
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Jeff Last edited by sandmanred; 04-13-2016 at 12:04 PM. Reason: add pic |
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