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The Terminator
Terminator Talk
Multiple Fuel Leaks after Lethal Budget Plus Return Fuel System Install
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<blockquote data-quote="cidsamuth" data-source="post: 16612925" data-attributes="member: 110091"><p>OP,</p><p></p><p>When I installed the fuel system on my 08 GT, I used multiple AN fittings throughout. At first, I had FIVE of them leaking. With four, I was able to torque them down (which you're not supposed to have to do), and they stopped leaking. The fifth, I had to replace, as no amount of torqueing worked.</p><p></p><p>Yours might be different, but I have found the 37 degree contact points of AN fittings aren't as reliable as they are supposed to be. I have also had AN fittings leak at those contact points for IC coolant AND oil, and no amount of loosening and retorqueing helped.</p><p></p><p>From experience, the way I have gotten the most consistent seal is to lube those 37 degree contact areas with a little bit of oil before assembly. My theory: Without lube, when the points meet and you start tightening it down, it grinds on the surface and sometimes creates grooves for fluid to escape. Knock on wood, every time I have lubed the surface points, I remained leak free.</p></blockquote><p></p>
[QUOTE="cidsamuth, post: 16612925, member: 110091"] OP, When I installed the fuel system on my 08 GT, I used multiple AN fittings throughout. At first, I had FIVE of them leaking. With four, I was able to torque them down (which you're not supposed to have to do), and they stopped leaking. The fifth, I had to replace, as no amount of torqueing worked. Yours might be different, but I have found the 37 degree contact points of AN fittings aren't as reliable as they are supposed to be. I have also had AN fittings leak at those contact points for IC coolant AND oil, and no amount of loosening and retorqueing helped. From experience, the way I have gotten the most consistent seal is to lube those 37 degree contact areas with a little bit of oil before assembly. My theory: Without lube, when the points meet and you start tightening it down, it grinds on the surface and sometimes creates grooves for fluid to escape. Knock on wood, every time I have lubed the surface points, I remained leak free. [/QUOTE]
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Multiple Fuel Leaks after Lethal Budget Plus Return Fuel System Install
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