Another AN fitting thread.

[bgbmxer]

More pictures for you sir







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Can you describe a bit at what we're looking at in the pics? Why does 1 tank plug have 1 tube coming out of it and the other have 2 tubes but with only 1 tube with an AN fitting?

Posted some better pics for ya

[GLHNSLHT2]

ahh yes, makes much more sense now, thanks.

[iTurbo]

I think the other tube is usually capped. It is used for siphoning the fuel out of the tank for easier service. I had modified the fuel tank sending unit on my '91 Spirit R/T for 6AN in/out. Wish I had pictures at the moment but they are on my old computer in the closet. I like that you had the fittings brazed on though. On the Spirit R/T I had 3/8" steel tube brazed in and then used a compression fitting with a sealing ferrule from Earl's to make in 6AN.

[bgbmxer]

I think the other tube is usually capped. It is used for siphoning the fuel out of the tank for easier service. I had modified the fuel tank sending unit on my '91 Spirit R/T for 6AN in/out. Wish I had pictures at the moment but they are on my old computer in the closet. I like that you had the fittings brazed on though. On the Spirit R/T I had 3/8" steel tube brazed in and then used a compression fitting with a sealing ferrule from Earl's to make in 6AN.

I thought about the compression stuff but I do plumbing and such for a living and most things with compression just suck. And then you can't get the ferul off once you do get it setup.

[c2xejk]

I have had good luck flaring the steel lines.

[bgbmxer]

I have had good luck flaring the steel lines.

what lines are you talking about exactly?

[Rrider]

Any cheap bastages out there may want price shop "JIC" fittings and adapters from a hose suppler. You can get them in plain old steel for cheap and they are (in my experience) 100% compatible with AN fittings. You have to get past the name differences on sizing is all.

http://en.wikipedia.org/wiki/JIC_fitting
May be too heavy for airplanes but on stuff like cars and forklifts its a nice middle ground between low spec OE and rocket grade AN.

[cordes]

JIC and AN fittings are compatible although the spec for the AN thread tolerances is tighter from what I've read. Regardless, for the purposes of this thread, they are totally interchangeable.

[bgbmxer]

They are both 37 degree flare I believe

[bgbmxer]

A little progress tonight. First time putting an AN fitting together and took a whole 2 minutes to figure out it would be nice to have a vice and some jaws to hold the tube. Have to shorten how much the brazed fitting sticks out from the tank on the level sending unit just not qute enough clearance. Fuel sock should be here Saturday so I can put the tank in for good. Then fire it up and start working on the 5 speed swap lol.

[GLHNSLHT2]

I did this on the garage floor using this technique to cut the hose. So simple and easy, A vice would be nice to hold the hose end like in the 2nd vid but not required.

[bgbmxer]

I did this on the garage floor using this technique to cut the hose. So simple and easy, A vice would be nice to hold the hose end like in the 2nd vid but not required.

Im using a cutoff wheel to cut the line the hard part is pushing the fitting in and getting them to thread together.

[GLHNSLHT2]

I used the cutoff wheel the 1st time I did them. Never again, it was a pain to get them into the fittings. Cutting the hose with the above method made it much easier. I also put a bit of a chamfer on the inside of the hose with a sharp exacto knife.

[bgbmxer]

I might have to try beveling the plastic a bit. It cuts like butter with a cutoff wheel and the brass ferul slides on easy it's just pushing that sitting in the end

[c2xejk]

what lines are you talking about exactly?

Fuel lines, that is what the conversation has been about, right?

[bgbmxer]

Fuel lines, that is what the conversation has been about, right?

Yes but I didn't understand how flaring steel lines was very relavent. Unless I'm just not getting what ur talking about

[bgbmxer]

The fittings finally clear some of the body bracing. Had to shorten the one for the fuel gauge on the right up. Now just waiting for my stainless self taping screws and my fuel sock and I can wrap this mess up.

[bgbmxer]

Got my fuel pump strainer and my stainless self taping screws today. Might get into the garage tomorrow but who knows since its supposed to be 3 degrees with a wind chill of yea f that

[bgbmxer]

Car is together and fired it up finally. I will never buy summit fittings again. I broke one of the 90's and wiped the threads out of the other trying to assemble them. I want to redo some of my clamps to fit a little better but I fired it up today to check for leaks and it seems we're good. I have to run the overflow for the tank somewhere since there isn't a line running to the front anymore.

[cordes]

How exactly did the fittings break? I had some from the silicone intakes stuff that I bought which would strip due to the fact that the fittings didn't bottom out like most AN fittings do. They just don't come together at the joint and it's hard to gues when it's really torqued and when you're stripping it.