I'm in a bit of a pickle. The application is a single Edelbrock 4bbl on top of my 265 SBC with a stock mechanical fuel pump. I'm trying to build a steel (maybe copper) fuel line that runs from the pump to the carb with a glass bowl sediment trap in-line near the carb in the cleanest fashion possible. My definition of clean is using as few fittings as possible and staying away from AN fittings. I like the classy and functional look of brass fittings for some reason. The picture in my head is a clean 90* out of the carb, keeping the trap close and tight to the carb and clean bends down to the pump. The pump and trap have 1/8" NPT female ports and the carb has a 3/8" inverted flare female port. The best I've come up with so far is to use 1/8" NPT male to 5/16" compression fittings on the pump and trap with 5/16" line. Clean and simple. My problem is between the trap and carb. I cant seem to figure out how to go from the 3/8" female flare to 1/8" NPT port on the trap without a bunch of adapters. I need some ideas. Can anyone help?
The ideal fitting that doesn't seem to exist is a male 3/8" flare to 5/16" compression in a 90*, straight would work too. If a 1/8" NPT male to 3/8" compression fitting was available I could use 3/8" line but that would be a strange looking fitting.
You might try the instrument type compression fittings. Swagelok, A-Lok, Yor-Lok type. Available in brass, and at least Swagelok, comes in just about any adapter combination. Pricey though. Try mcmaster.com for yor-Lok. No flaring required, just tighten the required number of turns to set the seal.
Isn't your Edelbrock carb set up for a rubber line? How do you adapter at the carb would be my question. Sometines a hardware store has a good selection of fittings. I needed to increase the return-to-fuel-tank rubber fuel line size from 5/16 from the pump to 3/8 at the tank and it was the local hardware store that had the barbed fitting in to do it. The 90 for the PCV was found at an auto parts store.
<HR style="BACKGROUND-COLOR: #e5e5e5; COLOR: #e5e5e5" SIZE=1> <!-- / icon and title --><!-- message --> For fuel lines, always go with steel, for safety considerations. 4TTRUK Are you able to give a reason for selecting steel over copper. I'm about to do the a similar project to Boobs. Re: Brass fittings - find a specialist supplier of compression fittings for the gas industry- we've got them in Oz, so you're sure to have in the states. Rodl
Steel Bundyweld tubing is good for fuel lines. Coils available on mcmaster.com (what isn't) and you can get finished lengths, w/ flare fittings, at many auto parts stores.
That one should be in most good brass fitting selections. http://www.oreillyauto.com/site/c/d...703&keyword=brass+fittings&pt=N1164&ppt=C0248 That would let you run a short tube with flared ends on it between the cute thing and the carb.
If I'm reading the chart right it looks like 2232X6 would be the right fitting. Would the seal of a compression fitting be compromised if I had to disconnect it for any reason? Would the flare be a better choice?
I checked Home Depot, O'Reilly, Tractor Supply, McCoy's, Auto Zone and a local parts chain with no luck. I tried searching on O'Reilly's site but it was confusing. Cute thing?
That cute little sediment bowl that every guy who lives on a farm grows to hate because they always leak at the wrong time on farm equipment and wheel line motors. Every time you open it to clean it you end up dripping gas all over the intake and if you aren't careful they leak after you have had them apart. One of the "cool have to have" things that I don't need on my car.
I used the 1/8 npt to 3/8 female compression on my sediment bowl. Instead of a 90* fitting at the carb i used a 28/29 model a under dash fuel line cut down to get a nice clean 90 that gave room to the linkage and stuff. It was like 10-15 bucks but it looks real nice and my hand bent one looked bad.
No and the cars at the body shop right now. I also used the rubber line at the carb, i plan to change it to the flare.
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