Join Date: Dec 2001
Location: Belleville, Illinois
Thanked 22 Times in 17 Posts
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.