Fuel fittings keep leaking

[Trickten327]

I ran 3/8\" aluminum fuel line from my fuel cell to my stock steel lines under my cab. I used aluminum -AN fittings on everything and they all are leaking. I used a flare tool to flare all the ends that I had to, and tightened all the fittings tight. When I powered up my fuel pump to check if any would drip. They all leaked like crazy. Do I need to wrap the threads?

Motorwise I\'m going to run my 2.5 until the fall when the TPI goes in. I know that the throttle body injection needs only a little pressure to run, but the TPI setup will need a lot more. What do I need to do? http://www.s10v8.com/images/smilies/icon_frown.gif null

[wickeds10]

the an fittings have a unique taper to them if they arnt perfect when u flared the tube it will leak ... my sugestion is go to a speed shop or look at someone elses ride to see how they did theirs but the speed shop can help u with the rite fittings

[kreepstr]

single or double flare?

[82-454]

There are two different angles to flare tubing. One is JIC and the other is AN. Make sure you have the right angle flaring tool.

[Trickten327]

After reading your replys, I called around and found out that I need a 37* flaring tool. I used a standard 45*. I\'m going to reflare my line and see how she does. Thanks fellas. http://www.s10v8.com/images/smilies/icon_smile.gif