06-18-2012, 10:14 PM | #1 |
Join Date: Apr 2012
Posts: 36
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Fuel leak from gas tank post that petcock attachs to
Has anyone ever experienced a fuel leak from under the gas tank along the post that the petcock attachs to? It seems to be a slow seeping leak but over night there is a small puddle unger the bike and i can smell gas in my garage. Just wondering if something like JB weld will seal this up or any other suggestions?
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06-18-2012, 10:44 PM | #2 |
Join Date: May 2007
Location: Altamont, Kansas
Posts: 15,103
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Make sure you clean and dry the area really well. If you use JB weld it needs to be cured for at least 24 hours.
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06-18-2012, 11:50 PM | #3 |
Join Date: Dec 2009
Location: Alaska
Posts: 914
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I would drain the tank then unbolt the petcock and put some silicone gasket maker over the o-ring them then bolt it back up and let dry over night.
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06-19-2012, 01:10 AM | #4 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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Check to see if everything is tight, and the O-ring is in good condition.
Spud
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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06-19-2012, 01:15 AM | #5 |
Join Date: Apr 2012
Posts: 36
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I will try draining the tank and some JB weld at the base. It is not at the petcock connection but above that where the tube comes out of the gas tank itself. I have no idea why it would be leaking there, there is no actual conection just seems to be part of the tank itself. Unless it screws up into the tank somehow. I will tear it down tommorrow and see if it unscrews out of the tank.
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06-19-2012, 01:41 AM | #6 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Use JB Weld (or similar) as a last resort, since the o-ring is more likely to be the culprit, as Spud and Wild_Alaskan have indicated. If you do need to use an epoxy, JB Weld doesn't actually state that it is suitable for exposure to fuel, whereas Permatex Cold Weld does. I've used it with good results.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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06-19-2012, 03:04 AM | #7 |
Join Date: Dec 2009
Location: Alaska
Posts: 914
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yes the metal part will unscrew out of the plastic tank if that is what you are talking about. I would NOT recommend using jb weld to reinstall it there is a fuel screen on the intake of the petcock that can become gummed up and the easiest way to clean it is to remove it, which wont easily happen if its permanently jb welded on.
i have used gasket maker on these when i couldn't find the proper replacement o-ring with good results. just put a layer right over the old o-ring.
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Dune buggy build http://chinariders.net/modules.php?n...wtopic&t=14470 400cc lifan build vid: http://youtu.be/20HoU8OK_Y0 other fun: http://tinyurl.com/wildalaskan |
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