Looking for a compression fitting

[HCO41]

Just went out and looked through my fittings, found nothing with 3/8 or 1/2 straight male thread, 97s must use gasket of some sort. I did find several 5/16 hex compression nuts, two of them are stainless steel. If these would help you, PM me.

[HCO41]

I think I found the fitting. Another poster above referenced Edelman fittings but I didn't see the fitting you appear to need on his links to Edelman. I googled 1/2-20 male/5/16 compression and the Edelman site came up with the following. No specs., but looks like your description. Good luck:
http://www.oreillyauto.com/site/c/de...1163&ppt=C0248

[ford38v8]

Rotorwrench has it right. Copper work hardens, and heat/cool cycles don't help either. What you see is copper, yes, but only skin deep. Steel is copper plated, then rolled to make the tubing, and brazed to make the seal. Bundy Tube has been manufacturing this product since the early thirties. There is even a name for the brazing process, called Bundywelding. Ain't Wiki great?
You could still get the correct tubing, still with a 91A part number, from any Ford Dealer Parts Department up until sometime in the '90's. Today, it is available from dealers such as C&G and Nazewicz.

[ken-r-mer]

I've found the 1/4" o.d. tubing compression fittings w/ the sae 20 treads - no problem. Just can't find the 5/16". Might have to just redo the setup in 1/4". Or just compitulate to doing the flared fittings.

For those of you concerned about the copper tubing, its just between the stock fuel pump and the carbs.

I bought the pressure gauge (0-15 psi) and block from a holly double pumper setup on Ebay for $12. I cut the 3 lines off, had the chrome removed and will scuff the nickel and paint the block of metal to match the bronze fittings.

This is the proposed setup (dryfit before soldering the lines into the pressure gauge block, smoothing out the dings in the lines, and before either using the compression fittings or flaring the ends). Will clean the lines once the blemishes are addressed and will hit the lines w/ copper cleaner till its like a new penny, then will clearcoat the lines.

Also note, I trimmed the Offenhauser gasket to fit the manifold footprint. Can't understand why none of the intake manifold gaskets are in the shape of the intake manifold (stock or aftermarket).

[ken-r-mer]

Unfortuantely the edelmann fittings are npt (pipe threads) or 18 threads per inch. SAE threads are 20 threads per inch. Wish the NPT and SAE people would have compared notes about 100-120 yrs ago.

[Model A Bill]

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I like it.A little more info on the fuel block if possible, maybe a pict before you cut the lines off

Thanks

[ken-r-mer]

Model A Bill....Go on ebay and type "holley 4150 double pumper plus".

[Bluebell]

Henry Ford used steel tube for fuel lines. For those with copper fuel lines, and V... Lock, there is a lesson here.
Pipe fittings and tubing is usually sized by the tube bore (relating to its ability to carry a certain volume)

[34PKUP]

Originally Posted by joe plumber

5/16" OD= 1/4" ID. Which measurement is being referenced when talking about line size

Originally Posted by joe plumber

Electrolysis also comes into play if not properly insulated .

O.D. is used when talking about automotive as well as other applications.
I.D. is used when talking about household plumbing ( but you should know that)
Have never heard of electrolysis being an issue in any automotive application.