Hard break lines

Keith1138

Keith1138

Well-Known Member
Joined
Nov 18, 2015
Location
Harrisburg NC
I'm hoping for the wise guidance from yall.

How do you undo fittings on hard break lines with out twisting the shit out of them?
I'm two for two with having to replace them because I couldn't get the fasteners out with out twisting the line to hell. One of the fittings was already rounded.
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If the tube nut is seized to the line. Well. You're screwed. you might get lucky with pen oil and a torch but my best bet is to just replace the whole line. I do not own line wrenches. Vice grips to break loose, open end wrench after it's loose. All the line wrenches I've used are just good to round off the line nuts (spreads and slips like an open end)
 
a_kelley said:
If the tube nut is seized to the line. Well. You're screwed. you might get lucky with pen oil and a torch but my best bet is to just replace the whole line.
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That's what I figure. So on the bright side my rear axel is about to have all new hard lines lol.


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Would putting some grease on the part of the line that goes into the fitting be a horrible idea? To make sure it doesnt twist while tightening.

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If I put anything on the line it would probably be anti-seize.
@a_kelley is right, once the tube seizes to the inside of the fitting, that is all she wrote, by the point that much rust has taken hold, it is a good bet you need new hard lines anyway.

Glad to read I not the only one who has never once successfully used a line wrench!
 
By the looks of that mess new is needed.

Line wrenches, maybe a little Heat. After that all bets are off....

Those fittings get ill, but I use them as a quality check of the system. If it refuses to move my dollar and time is spent making it functional and servicable.

Number one mistake of hydraulic system wrenching: to darn Tight.

Second: wrong fitting or flare profile. Leads to the first.

Third: putting thread sealant where it don't belong. Leads also to first.

Its amazing the pressure withstood with the right flare and when needed ( not Brakes ) o-rings.
 
All of this has been really helpful I'm about to make another run to the parts store to get new hard lines and a flare kit.

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Keith1138 said:
All of this has been really helpful I'm about to make another run to the parts store to get new hard lines and a flare kit.

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Get a bit of extra and practice of you have never made any. Also buy the softer line.

And get ready you'll flare at least one line and forget the friggen fitting!

I got a stupid little sticker plastered on my flair tool box.......reads: fitting stupid, fitting first.
 
WARRIORWELDING said:
Get a bit of extra and practice of you have never made any. Also buy the softer line.

And get ready you'll flare at least one line and forget the friggen fitting!

I got a stupid little sticker plastered on my flair tool box.......reads: fitting stupid, fitting first.
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I already bent and replaced the long side and I'm no quit happy with it because I got too long of a line and was being cheap and didnt get a flare kit. So I'm gonna practice on that and replace it now that I can cut it to length. Any tips on bending the line? I know no sharp turns

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I have a small radius tool. In a bind I've used the radius of sockets. Use a 1/8 tig rod for a gauge or coat hanger. Bend that profile first to perfection then bend the expensive stuff to match.
 
Just got back from autozone. Finally bought line wrenches, got two new lines, flare kit, and an extra fitting.

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As sever have said, yes, from the looks of it, it all needed to be replaced. As drew said, one mistake is over tightening them. I usually put a good snug on it, then have someone pump the brakes to see if it leaks, with a new wheel cylinder (BTW, check your fitting to see if it will screw into the wheel cylinder, before you go at it) have never used any anti-seize on one, but seriously, kinda sounds like a good idea.

On the Brightside, you will be a master at this when you finish. Unless you are like me and when the next time comes, you have forgot most of it LOL
Good luck, post up pics when you get it did.
 
Got everything but the front tires back on. Realised while doing my front calipers because the bleeder valve was rounded that I need longer front brake lines
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And I busted my favorite ratchet. It came apart of the first tool kit I ever got about 4years ago
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Go exchange that ratchet.. lowes started carrying Craftsman.. or Sears or Kmart. I've got a few of those myself. Oh and if you use niCopp or the steel line, I can bend 3/16 perfectly with just my hands, now 1/4" and larger I break out a hand bender.
 
Yeah I may or may not have used that ratchet in my hilift handle as a breaker bar. I have a 1/2 breaker bar but just two sockets for it.

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It think for now since im cheap and just spent more than i budgeted for I'm gonna exchange that ratchet and get 1/2 to 3/8 adapter. I picked up a decent ratchet from advance auto when I got calipers.

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Keith1138 said:
I picked up a decent ratchet from advance auto when I got calipers.

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No you didn’t ....
 
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