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post #1 of (permalink) Old 01-22-2005, 09:44 AM Thread Starter
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Ref: Fuel line material

Working with stainless, how does one put the bulge on the end? I think it's called a bump and it's supposed to keep the hose from slipping off the end. [img]images/graemlins/crazy.gif[/img]
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post #2 of (permalink) Old 01-22-2005, 12:37 PM
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Re: Ref: Fuel line material

I usually double flair them. That way it has the "bump" so it won't slip off and it doesn't have a sharp edge like a single flair to cut the hose. I don't know on stainless. Never done it. It might be hard to do without it splitting due to the hardness. I would try a little test piece.
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post #3 of (permalink) Old 01-22-2005, 12:40 PM
 
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Re: Ref: Fuel line material

You can get a flair tool at most automotive shops. I have used one on brake lines, but I have never done stainless. If I remember right the tool only costs about $15.

Good luck.
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post #4 of (permalink) Old 01-22-2005, 01:55 PM
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Re: Ref: Fuel line material

I've used two methods. The best is to use a "beading tool" made for the purpose. It has a pair of rollers with a groove in them, and a small wheel on an arbor. The wheel goes inside of the tube and a screw adjustment presses it against the wall. The the tool is rotated around the tube while progressively tightening the adjustment. That eventually works the tube wall out forming the collar into the grooves in the rollers. I borrowed a tool from an aircraft mechanic friend and used it on the 3/8" SS fuel line.

The tool had parts for different sizes of tubing, but none small enough to fit the fuel return line, so I used a brass compression collar instead. I slid a compression nut, collar and fitting onto the tube and tightened the nut, compressing the collar onto the tube. Then I loosened the nut and slid it off the tube. After setting the collar to the other end of the tube I loosened the nut and cut it off with a die grinder.
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post #5 of (permalink) Old 01-22-2005, 03:44 PM Thread Starter
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Re: Ref: Fuel line material

Give that man a kewpie doll. The brass ferrule trick is just too cool. I have ss fuel lines and I have a little boost pump I'm going to install to prime the carb. to cut down on starting time/starter wear, how's this for a run-on sentence? [img]images/graemlins/grin.gif[/img] I'll do a search for "beading tools" too see how much. Tanks...............
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post #6 of (permalink) Old 01-22-2005, 03:58 PM
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Re: Ref: Fuel line material

[ QUOTE ]
I'll do a search for "beading tools" too see how much.

[/ QUOTE ]

My guess is $180. Let me know how I did.
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post #7 of (permalink) Old 01-22-2005, 04:09 PM
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Re: Ref: Fuel line material

Boy, did I blow that! $350 at http://www.aircraft-tool.com/
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post #8 of (permalink) Old 01-22-2005, 05:04 PM
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Re: Ref: Fuel line material

I like to double up on the hose clamps.
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post #9 of (permalink) Old 01-22-2005, 06:56 PM Thread Starter
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Re: Ref: Fuel line material

Quite pricey, did not see one for stainless. Most said mild steel. [img]images/graemlins/frown.gif[/img] I think for my money I'll do the ferrule trick. [img]images/graemlins/grin.gif[/img] [img]images/graemlins/cool.gif[/img] [img]images/graemlins/laugh.gif[/img]
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