Gas Leak on carb-simple question

Farmall Super A, AV, 100, 130, & 140 1939 - 1973

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Komatsuna
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Gas Leak on carb-simple question

Postby Komatsuna » Tue Jun 09, 2015 5:30 am

Pretty Simple question here.

Super A. Gas leaking from connection from gas line to carb. There is a rubber hose connecting with a 2in piece of copper tubing inside the rubber then inside the gas "in" on the carb.

It leaks a lot.

Copper tube has some nice wear. What is that copper tube called, or is that just a farmer fix. I figured if I could find the copper tube that was smooth and round to replace the worn one all would be fine?

Anyway thank you as usual.

Devin

Jim Becker
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Re: Gas Leak on carb-simple question

Postby Jim Becker » Tue Jun 09, 2015 9:23 am

It is a farmer fix. The original line was steel, full length with no copper or rubber. Many of the do-it-yourself fixes mess things up by using close but not correct fittings with the wrong threads, for example screwing a pipe thread part into a straight thread part. The original had a street ell screwed into the carburetor. The elbow includes a screen on the carburetor end. That end is a pipe thread. The other end (internal thread) is a straight thread that uses a compression fitting. The thread for the steel tube at the fuel strainer end should also be a compression fitting.

Komatsuna
Posts: 19
Joined: Fri Nov 14, 2014 6:00 am
Zip Code: 00000
Tractors Owned: '54 AC G
'80 hydro 84
'80 AC 6080
'48 Super A
Circle of Safety: Y
Location: South Eastern Pennsylvania

Re: Gas Leak on carb-simple question

Postby Komatsuna » Fri Dec 11, 2015 2:21 pm

Hey I am finally back working on this tractor.

Any advice as to how to fix this problem? Could a get a new fuel line with the compression fittings? It doesn't really seem like the elbow with the steel screen will accept a compression fitting without leaking. As it appears to be lacking threads.

Can I get a a new one of those elbows as well?



Thank you.

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Dale Finch
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Re: Gas Leak on carb-simple question

Postby Dale Finch » Fri Dec 11, 2015 3:11 pm

Steiner's has that peice. They are 2 different sizes, so make sure you get the correct one. You can get steel brake line from an auto parts store and, with a tubing bender, make your own fuel line. It is about the same as a Cub, and there should be several posts on making them.

Good luck!

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Don McCombs
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Re: Gas Leak on carb-simple question

Postby Don McCombs » Fri Dec 11, 2015 4:09 pm

You can also try McDonald Carb & Ignition...

http://www.mcdonaldcarb.com
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SONNY
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Re: Gas Leak on carb-simple question

Postby SONNY » Fri Dec 11, 2015 7:58 pm

one of mine was stripped out so I just put several layers of thread tape on it and carefully stuck it back in the carb.---next time it has to have neo hose and filter full length put on like all my other tractors have! thanks; sonny
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