new fuel line, new fittings, new ferrules, rebuilt carb, LEAK

[thebanjoman]

I'm missing something.

New gas line from bowl to carb

New fuel line.

New fittings and ferrules (bought 1/4 ferrules from Lowes)

Rebuilt carb from Snyders

Fuel still leaks at carb end, Not a drip but you can touch the line and get gas on your fingers.

I bent the steel line, slipped on the fitting and ferrule and put it into the carb to the stop and tightened.

Seems like its leaking out of the back of the fitting at the tube, not around the threads.

The ferrules I used are just 1/4 brass ones I got from Lowes hardware.

Is there a special ferrule I should be using?

Its not leaking at the bowl end.

What stupid thing am I doing??

[BRENT in 10-uh-C]

A couple of things;
Check the ferrule's "seat" of the carburetor to ensure it is not pitted or scored in that area. If so you will need to repair that seat area. Also verify the angle of the ferrule against the seat.

Next, make sure the ferrule has seated firmly onto the fuel line. If not, you may need to solder it to the line. Then check to make sure the line is not bottomed out inside the carb where the ferrule cannot seat properly.

[thebanjoman]

Originally Posted by BRENT in 10-uh-C

A couple of things;
Check the ferrule's "seat" of the carburetor to ensure it is not pitted or scored in that area. If so you will need to repair that seat area. Also verify the angle of the ferrule against the seat.

Next, make sure the ferrule has seated firmly onto the fuel line. If not, you may need to solder it to the line. Then check to make sure the line is not bottomed out inside the carb where the ferrule cannot seat properly.

Carb was rebuilt by Snyders so I would hope the seat would have been inspected during rebuild but I will check.

I've probably bottomed out the line when installing it.

I'll probably have to cut off the ferrule and redo it. Glad they came 3 in a pack.

The ferrule slides easily on the tube and I suspect that soldering it in place is what I will have to do.

[Kurt in NJ]

Soldering has always worked for me, the solder will seal the imperfections ---do it off the car and far from any fuel fumes

[thebanjoman]

Originally Posted by Kurt in NJ

Soldering has always worked for me, the solder will seal the imperfections ---do it off the car and far from any fuel fumes

Yep, No "Darwin Award" contenders here..

[thebanjoman]

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Originally Posted by Kurt in NJ

Soldering has always worked for me, the solder will seal the imperfections ---do it off the car and far from any fuel fumes

Soldered it up with a new ferrule and I'm in business.

Thanks.

[BILL WILLIAMSON]

Originally Posted by thebanjoman

I'm missing something.

New gas line from bowl to carb

New fuel line.

New fittings and ferrules (bought 1/4 ferrules from Lowes)

Rebuilt carb from Snyders

Fuel still leaks at carb end, Not a drip but you can touch the line and get gas on your fingers.

I bent the steel line, slipped on the fitting and ferrule and put it into the carb to the stop and tightened.

Seems like its leaking out of the back of the fitting at the tube, not around the threads.

The ferrules I used are just 1/4 brass ones I got from Lowes hardware.

Is there a special ferrule I should be using?

Its not leaking at the bowl end.

What stupid thing am I doing??

A new ferrule must be "set" or compressed to the line by tightening the nut, then with wrench pointing forward, push firmly down on the wrench and you will feel it tighten about 1/8 turn more and then stop. You have compressed the ferrule into the line, like a wedding ring on a fat man's finger.

[cars56]

How about that
Purchased the same set up recently, did not realize the ferrule is soldered onto the fuel line

[1931 flamingo]

NORMALLY, you would NOT have to solder it. JMO
Paul in CT

[Tom Endy]

I make it a practice each time I remove a carburetor to also completely remove the fuel line. I put about four wraps of white nylon tape over the ferrule at each end, and replace with new each time the fuel line is off. This helps seat the ferrule in the taper. Be careful not to get the tape over the end of the fuel line.

I have posted this suggestion several times and each time I got a ticket from the Model A police. However, it works for me.

Tom Endy