New gas line ferrule attached to fitting ?

[Aok]

My old gas line to the carb was copper too long it crushed the internal carb screen, I ordered a new line from snyders the ferrule is attached to the fitting so before I screw it up do I just tighten the fitting and it will crimp to the line or ??. I know the line needs to enter the carb and just touch the screen but not sure about this connection I thought the ferrule would be loose and I would put it on the line

[BRENT in 10-uh-C]

The better way is to mount and solder the ferrule directly onto the line, and then cut off the excess tubing if it is still too long. When you make the initinal installation, it will compress onto the tubing too.

[JoeWay]

Two thoughts--first, the end of the line should NOT touch the screen. There must be space for the fuel to pass around the outside of the screen. 1/8" of line beyond the ferrule seems to be about right.

Second, I am VERY reluctant to argue with Brent, but I wouldn't solder the ferrule.

Joe

[Purdy Swoft]

You can't solder the ferule on the ones that AoK mentioned. The ferule and the fitting are one piece. This type fitting-ferule was offered a few years ago, I never had anything but problems with this type fitting.

[Aok]

Its the fitting that has me confused either I need to buy a separate ferrule or is this designed to seal the line. Image and part from snyders

[Purdy Swoft]

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Obviously the fitting and ferrule are one piece in this case.

[sturgis 39]

Maybe the ferrule is not that tight on the gas line. I bought one and could slide ferrule on the tube without too much force.

[Aok]

That's what I thought but the concept did not make sense to me but I see you already post having problems with this. Well I have it I guess I will try it and see how it works.

[Russ/40]

When using the one piece unit you must have the fuel line extend beyond the ferrul, or it will not hold the line securely, and will never make a seal.

[Tom Endy]

my experience has been that the line is stainless and the ferrule in copper. remove the screen from the casting and screw in a bolt in its place. Insert the SS line until it touches the bolt. Tighten the nut down and it should crush the ferrule onto the line and form a seal. The end of the line should then have sufficient space from the filter screen when you install it.

Tom Endy

[Purdy Swoft]

With the fitting and ferrule made in one piece, even if the ferrule mates correctly with the fuel line when tightened, Whats gonna happen when you need to remove the fuel line??????? The ferrule will have to move with the fitting, being as they are made in one piece, in this case. You may get by until removal is necessary and then you will need a new fitting- ferrule. Snyders does offer the correct style fittings and ferrules seperately.

[sturgis 39]

Originally Posted by sturgis 39

Maybe the ferrule is not that tight on the gas line. I bought one and could slide ferrule on the tube without too much force.

I did not realize yours was one piece. I have never seen or used one that is one piece. I have purchase the fitting only.

[Jim/GA]

I tossed the 1-piece fitting out and used conventional 2-piece fittings with ferrule separate from nut. I think the ferrule on the 1-piece nut is supposed to break off as it is tightened up. I did not trust it to do that.

[Chuck Sea/Tac]

The ferrule breaks off when you tighten it. I use them all the on gas appliances! Chuck

[BRENT in 10-uh-C]

We have used them ...and as someone mentioned, sometimes they will spin & score the line as it is tightening where they will leak. They CAN be soldered.

[BILL WILLIAMSON]

Originally Posted by Chuck Sea/Tac

The ferrule breaks off when you tighten it. I use them all the on gas appliances! Chuck

Chuck,
You are EXACTLY right, my man! Chief taught me to tighten them 'til the ferrule squeezes the tube like a wedding ring on a fat man's finger.
If you are concerned about ruining the carb threads when seating it to the line, just use a matching coupler as an installation "tool" when squeezing it to the line. (especially on pot metal carbs) Bill W.

[Tom Wesenberg]

Yep, they do break off when properly tightened, but I still prefer the seperate style ferrule. If they leak then I solder them.

[Jim Parker Toronto]

Originally Posted by Jeff/Illinois

Better yet, go to the hardware store or auto parts store, buy a chunk of steel tubing, ferrules and nuts, and make your own. Not hard to do.

Some guys make an extra line, cut a section out of the middle and install a fuel filter, metal type. Don't recall the part # off of the top of my head get the non-pressurized system filter.

Jeff, whether you know it not, the threads and fittings on the gas line are just not generic threads. They are a special TPI and Diameter. I doubt very much that you could find them at a hardware or parts store! (Yes it would be hard to do!)

[bobv]

NAPA has them, they are Weatherhead # 59X4. The ferrule breaks loose when the fitting is tightened. I haven't had any problem using them.

[Terry, NJ]

Coincidently, Today I happened to looking for a fitting to fit a carburetor. I was trying to determine exactly what thread Henry used. The nearest I could come was 1/2 x 20 but I really wasn't comfortable with that. Anyone know what it was for sure?
Terry