You appear to be driving it down that rabbit hole.
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Automotive machining question…
- Thread starter cosmopedro
- Start date
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BT Fabrication
Stainless
- Joined
- Nov 3, 2019
- Location
- Ontario Canada
if you use the brake line flaring tool, you might be able to put a small flare on the end of the existing line, then slide a high pressure fuel hose over it with high pressure fuel injection clamps. that way the flare slightly holds it from coming apart, its a bandaid solution ive used on a trail to get things home or into a shop.
sucks having to fix it, but thats why mechanics have shops indoors, might need to pay a guy this time around.
cg285
Stainless
- Joined
- Jan 31, 2007
- Location
- sumterville, fl
as a repair i'm not catching on to why it is so difficult. however if not comfortable fixing it try these people. they make in quantity a couple fuel lines i sell
classictube.com
classictube.com
MwTech Inc
Titanium
- Joined
- Feb 6, 2005
- Location
- Fishersville VA
In theory it's not a difficult repair......replace the line/have one made with factory ends and install it.
Yea its a huge pain in the butt to do it, worse when cold. I totally understand the OP's situation, been there.
But using rubber hose with clamps to contain the pressure in that line is just not correct.
Look, the grandson could be driving down the road, wintertime right now up there, slide off the road and hit something. Hey as kids
a lot of us have done that.........He hits the front corner, maybe it will, maybe it wont compromise the fuel line, but we have the chance to be spraying raw gas
into a hot engine compartment possibly with grandson inside the cab. Or somebody hits him........
That truck will put out about 1.0+/- oz per second. And we are going to assume the fuel pump kill switch works, if not we are going to feed that fire .
How many oz of gas does it take to start a fire.... less than 1 oz will flash right now
It's just not worth taking a chance with a human life knowing your are purposely making the "temporary" repair
Be the same as using copper lines on your brake system.
I ran fire/rescue, I guarantee burning to death is not the way to go.
OK i'm really done now.........
Yea its a huge pain in the butt to do it, worse when cold. I totally understand the OP's situation, been there.
But using rubber hose with clamps to contain the pressure in that line is just not correct.
Look, the grandson could be driving down the road, wintertime right now up there, slide off the road and hit something. Hey as kids
a lot of us have done that.........He hits the front corner, maybe it will, maybe it wont compromise the fuel line, but we have the chance to be spraying raw gas
into a hot engine compartment possibly with grandson inside the cab. Or somebody hits him........
That truck will put out about 1.0+/- oz per second. And we are going to assume the fuel pump kill switch works, if not we are going to feed that fire .
How many oz of gas does it take to start a fire.... less than 1 oz will flash right now
It's just not worth taking a chance with a human life knowing your are purposely making the "temporary" repair
Be the same as using copper lines on your brake system.
I ran fire/rescue, I guarantee burning to death is not the way to go.
OK i'm really done now.........
Strostkovy
Stainless
- Joined
- Oct 29, 2017
U Union|Stainless Steel Compression Fittings | StainlessSteelFittings.com
Buy fittings online such as Tube Compression Unions as well as other stainless compression tube fittings provided by Stainless Steel Fittings.
www.stainlesssteelfittings.com
cosmopedro
Plastic
- Joined
- Jun 28, 2022
I get all that - and appreciate that you said it without insulting me. Thanks!
farmersamm
Aluminum
- Joined
- Feb 26, 2008
- Location
- oklahoma
My 90's model Fords put out about 30psi IIRC. It's quite a bit of pressure to deal with, considering it's a flammable liquid. Even the return lines pose a problem.......not pressure, but fairly high volume.
I'd opt for a new line IMHO.
My trucks have an inertia switch to kill the pump, but I don't think there's any provision for shutting it off when a pressure drop is detected. The only way to kill the pump is to turn off the key........but I believe the in-tank pump has a backflow preventer that holds some residual pressure after it's shut off. The only way to work on the fuel system is to trip the inertia switch, and either run the motor till it quits, or by connecting a fuel pressure gauge to the fuel rail, and bleeding it that way. So..........any leak would continue under pressure for at least a limited time. Not a very safe proposition.
I'd opt for a new line IMHO.
My trucks have an inertia switch to kill the pump, but I don't think there's any provision for shutting it off when a pressure drop is detected. The only way to kill the pump is to turn off the key........but I believe the in-tank pump has a backflow preventer that holds some residual pressure after it's shut off. The only way to work on the fuel system is to trip the inertia switch, and either run the motor till it quits, or by connecting a fuel pressure gauge to the fuel rail, and bleeding it that way. So..........any leak would continue under pressure for at least a limited time. Not a very safe proposition.
Cole2534
Diamond
- Joined
- Sep 10, 2010
- Location
- Oklahoma City, OK
One time I was working a project on some process piping and needed a stainless 2" NPT union so I sent the warehouse guy to order one. A few days goes buy and he drops a 2" Swagelok tube union, like you've pictured above, in my lap. I dunno how much that cost, but it sure as hell wasn't cheap.
U Union|Stainless Steel Compression Fittings | StainlessSteelFittings.com
Buy fittings online such as Tube Compression Unions as well as other stainless compression tube fittings provided by Stainless Steel Fittings.www.stainlesssteelfittings.com
Superbowl
Cast Iron
- Joined
- Feb 12, 2020
MwTech Inc.--Why don't you actually read my posts before commenting??? Especially the sentence that says flush the line with water before welding.
john.k
Diamond
- Joined
- Dec 21, 2012
- Location
- Brisbane Qld Australia
Funny story about a fuel line .......was doing some work .chassis extension, on a big gasoline powered ex military truck.........anyhoo ,cut a steel fuel line with the oxy....there was a whistling sound ,got louder and louder for around 10 seconds or more ,then "boom" the fuel tank exploded.....blew out the filler extension and strainer to who knows where ,and turned the welded steel tank from a cube into a sphere.
