how do I disconnect this steel brake line from hose?


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Old 08-08-18, 10:58 AM
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how do I disconnect this steel brake line from hose?

My rear steel brake line leading to the back is leaking bad/rusted out inside the frame E150. I cut the rear bit but I cant figure out how to remove the front end from the hose, is there a special tool or something? everything is round, so nowhere to put a wrench. Maybe I should just cut the steel line and flange it and connect the new line to that?, but there is not much room to work. maybe 3 inches. or cut the steel line in front of this hose and remove the hose completely, I have more room to work a new flange in front. not sure why it needs a hose there as it runs along the frame, no suspension movement
 
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Last edited by tempoe; 08-08-18 at 11:29 AM.
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Old 08-08-18, 12:37 PM
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the line uses a quick disconnect you use a line disconnect tool to insert into the end releasing the spring lock there is many different sizes as they use them on a/c lines, fuel lines possibly other places but ive never seen one on a brake line, tool can usually be found at your local parts store or online would double check that it is a brake line though as you may have the wrong line.
 
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Old 08-08-18, 02:55 PM
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ive never seen one on a brake line
There are quick connect fittings for brakes but they are super high end and nothing you would see on a production vehicle.

That doesn't even look like them, no idea what you have there!
 
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Old 08-08-18, 03:05 PM
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thanks...lol, you were right, wasnt the brake line, the brake line was hidden behind, still not sure what line that was.

Anyways, got real brake the line out, but the flare for the rear hose looks different than what Im used to, (bottom part on pic) why is that flange different ?? (not concave inside) not sure if I have to flange the line the same as it is shown there or just a normal flange like the top one?? Thanks again
 
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Last edited by tempoe; 08-08-18 at 03:31 PM.
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Old 08-08-18, 03:20 PM
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Do I have the right fitting? , my new fitting has threads right to the end, whereas the one with the strange flange has a spot with no threads...does that matter? I was thinking of just using my connecter with a normal flange?
 
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Old 08-08-18, 03:49 PM
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Those were fuel and vapor recovery lines going to the gas tank.

Those are special flares. You have a double flare and a bubble flare. I have the special tools needed to do both but they aren't cheap.

You can get a brake line already made up at many auto parts stores. Bring both fittings with you for matching. You'll definitely find a line with a double flare at each end. You may need to buy one like that, cut one end off and have a mechanic put the bubble flare on for you.
 
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Old 08-08-18, 04:09 PM
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thanks Pete
I hope the mech down the road can do a bubble flare for me I already have a new line and can do the double flare here.

So just to be clear...if just I do a double flare myself and use my new connector it will not seal that connection properly?

I could probably still use the old connector if I have to, but do you think my new fitting will work ok if I use a bubble flare with it even if the threads go to the edge??
 
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Old 08-08-18, 04:21 PM
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Your new fitting is not going to work. Reuse the old one. Take a wire brush to it and clean it up.
 
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Old 08-08-18, 05:36 PM
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thanks...to all, hope to get it done in the morning, wow pete, 44,000 posts, you must have helped a lot of people!!!
 

Last edited by tempoe; 08-08-18 at 06:48 PM.
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Old 08-08-18, 06:56 PM
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I have and it's a co-incidence to see that bubble flair as I just bought the tool several months ago to do a friends brake line repairs.
 
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Old 08-08-18, 08:22 PM
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I have lots of spare brake line to practice doing it with my normal kit as shown here... https://youtu.be/KaO2jAWqVU0?t=205
 
 

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