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Old 06-11-2019, 05:40 PM   #1
DelPercio
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Default Fuel line

Line from fuel bowl to carburetor is 1/4 inch. Looking at replacement parts they don’t mention size. Is 1/4 correct or should it be 3/8
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Old 06-11-2019, 06:26 PM   #2
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Default Re: Fuel line

¼" is correct.
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Old 06-11-2019, 10:08 PM   #3
Chuck Sea/Tac
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Default Re: Fuel line

If you have the correct fittings, you can use 1/4” steel brake lines, then cut and bend to your specs!
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Old 06-12-2019, 03:50 PM   #4
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Default Re: Fuel line

Do not use copper. Copper can crack from fatigue failure. Ed
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Old 06-15-2019, 07:09 PM   #5
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Default Re: Fuel line

Here is a trick that I have used to avoid leaks. I use 1/4" steel brake line with brass compression ferrules , but before installing, I position the ferrules on the tube and carefully sweat solder the ferrules to the tube. This helps seal the joint without having to use excessive force on the fitting to compress the ferrules tight to the steel tube.
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Old 06-15-2019, 07:59 PM   #6
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Default Re: Fuel line

Replacement lines are readily available from any of the suppliers. They are made from the proper grade of steel, come with the right fittings, and fit perfectly. When working with gas it is always best to do the job right.
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Old 06-15-2019, 09:19 PM   #7
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Default Re: Fuel line

And don't swallow the pill for the brass screw fitting that has the compression ring attached. I think a lot of gas lines are sold with this fitting as part of the "package."

These are supposed to work by "shearing off" the compression portion and then acting like any other compression fitting. Clue for the clueless - they don't.

In fact, as trouble free and reliable the old fashioned two piece screw nut/compression ring is in real life, for you if you're like me, the combined screw nut probably won't seal - and you'll have a gas leak. And you'l have a gas line from which you can't get the ring OR screw nut off of. As in either cut and shorten the line - or throw it away.

THIS is the fitting you want.


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Old 06-16-2019, 09:55 AM   #8
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Default Re: Fuel line

Quote:
THIS is the fitting you want.
Ditto
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Old 06-16-2019, 11:53 AM   #9
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Default Re: Fuel line

I agree. The fuel line you get from the vendors come with the "shearing off" type that don't work. Snyder's sells the "correct" fittings separately...
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Old 06-16-2019, 07:14 PM   #10
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Default Re: Fuel line

The fuel line I got from Mac's had the preferred fittings. Worked great.
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Old 06-16-2019, 10:35 PM   #11
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Default Re: Fuel line

That’s odd. I use shear off fittings on natural gas lines all the time, and never had a problem.
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Old 06-17-2019, 12:29 AM   #12
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Default Re: Fuel line

My Lord, is it that HARD to squeeze a Ferrule in place???---You should turn your Plumbers' Licence in!!!!
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Old 06-17-2019, 03:19 PM   #13
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Default Re: Fuel line

I could give you an 101 about Ferules!!!
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Old 06-18-2019, 06:44 AM   #14
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Default Re: Fuel line

Quote:
Originally Posted by Mulletwagon View Post
The fuel line I got from Mac's had the preferred fittings. Worked great.


Agreed; Just replaced this line with the Mac's line and other than a slight "adjustment to the shape" it was perfect!


I came across a suggestion to put Teflon tape on the ferrules (not the fitting threads) before installing. Anyone do this?
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Old 06-18-2019, 08:06 AM   #15
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Default Re: Fuel line

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Originally Posted by DNLs1930 View Post
Agreed; Just replaced this line with the Mac's line and other than a slight "adjustment to the shape" it was perfect!


I came across a suggestion to put Teflon tape on the ferrules (not the fitting threads) before installing. Anyone do this?
Not necessary, brass is soft and will form to the fitting. If its been removed and overtightened too many times, just replace rather than try to fix it up with a bandaid.
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Old 06-18-2019, 08:39 AM   #16
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Default Re: Fuel line

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Originally Posted by eagle View Post
Not necessary, brass is soft and will form to the fitting. If its been removed and overtightened too many times, just replace rather than try to fix it up with a bandaid.
X2 - Teflon is used on pipe thread but never on compression fittings.
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Old 06-18-2019, 09:45 AM   #17
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Default Re: Fuel line

7 years ago I had to fix a Model A that wouldn't go faster than 30 MPH.
His gas line at the carb was blocked off with Teflon tape.
See replies #15 and 16.
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Old 06-18-2019, 09:47 AM   #18
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Default Re: Fuel line

Thanks for the reassurance and FYI, I did not add any Teflon to the ferrules.
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