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Author	Topic: AN Fittings?
thumpin cat Gearhead Posts: 458 From: Santa Barbara, California Registered: Mar 2002	posted 12-18-2004 08:49 PM I am having issues with leaking AN fittings (Hose end to male fitting) and i wanted to know if it is possible that they are leaking because the surface on the inner portion of the hose end where the cone part of the male fitting mates to is a bit irregular (a pin sized ding). What do you guys think? IP: Logged
65ponycar Gearhead Posts: 755 From: Dayton, OH Registered: Jul 2003	posted 12-18-2004 11:09 PM Your theory sounds plausible... I think that idea has merit. Are you using something like teflon tape or some kind of wrap on the threads? Even though you have to be careful when using it, I always do. IP: Logged
kid vishus Gearhead Posts: 6098 From: middle of NC Registered: Oct 2000	posted 12-19-2004 09:40 AM Sounds possible. Has it leaked from the very first time you used it? If so, maybe it is leaking inside where the hose fits over the barb? I have had one fitting that leaked that way. I ended up replacing the fitting. I never use teflon tape or teflon paste on any AN fittings. They dont require it, and normally wont leak when only hand tight. IP: Logged
thumpin cat Gearhead Posts: 458 From: Santa Barbara, California Registered: Mar 2002	posted 12-19-2004 04:20 PM It was the first time these fittings had been used and i hand tightned all of them but they still had leaks so i tightened them down a bit with a wrench but the leaks did not stop. I also pressure tested 2 of the lines and they had leaks from below the nut that screws onto the male fitting, which leads me to believe its something with the fittings not sealing properly rather than the hose not being on the barb correctly. IP: Logged
thumpin cat Gearhead Posts: 458 From: Santa Barbara, California Registered: Mar 2002	posted 12-19-2004 06:47 PM Does it make a difference that i wrapped some tape around the end of the cut hose then i placed the hose-end socket over that? IP: Logged
Clark Gearhead Posts: 675 From: Rowlett,Texas Registered: Aug 99	posted 12-20-2004 03:06 PM It should not cause the leak but I have another question are both ends you attaching AN? The reason I ask is that AN have a different angle than automotive fittings. If these are correct and there are no other scratchs on the flare surface you can use what we call in aviation "nickle seals". These are seals that are made of brass or nickle that fit over the male end before threading the fitting down. ------------------ 69 393W Sportsroof Deluxe [This message has been edited by Clark (edited 12-20-2004).] IP: Logged

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