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Hoses and Fittings

Shawn

Shawn

Just Hanging Out
Location
Holly Day
Help me understand fittings. Why is AN better than others? I understand the "clean" look and the flared fitting, but is there anything else that makes it better? Home do you determine what size is needed and/or what size you have?
Let say that I go from my fuel cell with a 8 AN fitting, I assume I go to a 8 AN hose then run it from the cell to the pump (or can I enter a hard line?) once at the pump, I have to use hose clamps to secure it to the barbed fitting on the pump. Now that takes away all the "clean" look we started with... Now, once I get to the carb (Q-Jet) how do I know what size the threads are in the carb...?

This is all new to me and I'm not seeing any local shops that I can just go in and test fit the fittings, so I will need to order on-line.

Help me... if ya can...:p
 
SnwMnkys

SnwMnkys

Registered User
Location
Orem, Utah
First off you know how to size AN fittings right? 8 AN is a little big for fuel line in a stock setup, but not overkill. Its the equivalent of 1/2". Think of it as the AN number then 16ths, so 8/16ths which = 1/2". So a 6 an line would be 6/16ths or 3/8" which is what im using for my fuel line on my 351W.

Depending on what card you are using, you should be able to unthread that barb fitting. I know Edelbrocks and Holleys you can, if your using a stock carb, then i dont know why youd be going through the trouble of AN fittings to begin with. Then you can buy an AN to pipe thread adapter, screw that into your carb, and your set.

f961603ERL.jpg



You can also enter in a hard line, you have to flare the tubing, and buy a flare nut and sleeve. From what i understand though, you cant just use a regular brake line double flaring tool, you have to buy an AN flaring tool because the angle is diferent.

f9892064ERL.jpg
 
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I Lean

I Lean

Mbryson's hairdresser
Vendor
Location
Utah
The flared AN/JIC fittings are nice because they don't use O-rings or clamps, nothing to wear out that way. No thread sealant like pipe thread. Makes it nicer if you have to take them off and on, or whatever.

Keep in mind for the fittings, AN and JIC are the same flare and threads--and quite often the JIC stuff is less expensive. The numbers are even the same. (-6 AN = #6 JIC)
 
anvil

anvil

Registered User
Location
Idaho Falls
AN stands for Army Navy. It uses a 37* flare instead of an SAE 45* flare. The narrower cone angle creates a tighter seal when the same amount of torque is applied to the nut. AN fittings are compatible with common industrial JIC fittings. JIC fittings can be found at EVCO, Hose & Rubber Supply or plenty of other places in salt lake. Typically industrial JIC fittings are made of steel not aluminum. They don't look as pretty but they work great. All kinds of adapters are made to connect AN fittings to anything you can think of. You should'nt ever need to use a hose clamp. AN/JIC fittings do require a special flaring tool to make the correct flare. Some of the places in Salt Lake that I've talked to don't want to sell fittings for brake lines. Probably for liability reasons. Come up with some other good use when you talk to the guy behind the counter.
 
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I Lean

I Lean

Mbryson's hairdresser
Vendor
Location
Utah
Oh, one more thing....you CAN take your stuff in to "test" fittings or thread sizes. Hose and Rubber is one of my favorites, pretty friendly. (300 W, 3400-ish S) Evco also, and Hose Products--any of the three will most likely have whatever you need.
 
Shawn

Shawn

Just Hanging Out
Location
Holly Day
I Lean said:
Oh, one more thing....you CAN take your stuff in to "test" fittings or thread sizes. Hose and Rubber is one of my favorites, pretty friendly. (300 W, 3400-ish S) Evco also, and Hose Products--any of the three will most likely have whatever you need.
Click to expand...
Thanks Carl,

I think I'll run by H&R.
 
1993yj

1993yj

.
Location
Salt Lake
I just plumbed up an RCI cell that had 3 8 AN fittings on the top of it in my Wrangler. The hardest time I had with the AN fittings from Russels or any other similar brand was that it was impossible to find fittings that would reduce down small enough to hook into my existing hard fuel lines (3/8, 5/16, and 1/4). What I ended up doing was going into EVCO and they had adapters that went from female 8 AN to 1/2 female std pipe thread, and from there just got elbows that went from male 1/2 std pipe thread to barb fittings for my rubber lines. All 6 of the fittings only ran me about $30, way cheaper than the "clean" looking stuff. Definately not as nice and clean looking, but who's really gonna see it anyway?
 
richpblaze

richpblaze

Registered User
Location
Stansbury Park, Utah
Hose and rubber supply as stated above,

Great customer service very knowledgable. The only people in town who stocked Earls fittings. Had all my hoses reworked and bought all my fuel line parts through them. Talk to Brian tell him Rich with the Toy sent ya.
 
Shawn

Shawn

Just Hanging Out
Location
Holly Day
So what is the fitting called or looks like that goes over a barbed end? You know, like when I hook it up to a mechanical fuel pump?
 
RockMonkey

RockMonkey

Suddenly Enthusiastic
Shawn the Checker on 45th and State has a fairly reasonable selection of Russell AN fittings you can go check out. Certainly more expensive than Evco or H&R, but it is a little nicer looking, and if you need something quick and don't want to mail order it, it's at least an option.
 
anvil

anvil

Registered User
Location
Idaho Falls
I was wrong about never needing a hose clamp. On a barbed end you are stuck with using rubber hose and a hose clamp. If the barbed end is part of an adapter you could unscrew it and get a JIC adapter. This isn't possible on many old mechanical fuel pumps. Many newer mechanical fuel pumps have NPT fittings that can be adapted to JIC


Parker does make a line of hose that when connected to their barbed fittings doesn't require a hose clamp. It holds 250 PSI.
 
Caleb

Caleb

Well-Known Member
Location
Riverton
RockMonkey said:
Shawn the Checker on 45th and State has a fairly reasonable selection of Russell AN fittings you can go check out. Certainly more expensive than Evco or H&R, but it is a little nicer looking, and if you need something quick and don't want to mail order it, it's at least an option.
Click to expand...


I believe Brian Heer (formerly from Mepco) is a store manager at that Checker. Evco on 3rd west also stocks Earls stuff, or atleast they used to.
 
Brett

Brett

Meat-Hippy
Location
Salt Lake City Utah
Supergper said:
I believe Brian Heer (formerly from Mepco) is a store manager at that Checker. Evco on 3rd west also stocks Earls stuff, or atleast they used to.
Click to expand...


He's down at the Kearns store now....not sure of the address though.
 
B

bobdog

4x4 Addict!
Location
Sandy
Shawn said:
So what is the fitting called or looks like that goes over a barbed end? You know, like when I hook it up to a mechanical fuel pump?
Click to expand...

Buy a pump with AN fittings Holley 12-454-11 is listed for a Big Chevy. Pack your current pump as a spare along with those ugly hose clamps. It is no big deal if you need to use a clamp, but it sure is nice to have fittings that screw on. I have run the braided and AN type stuff for almost 15 years and never had a leak.
 
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