Single Flared Brake Line

[adsm08]

Would you trust a single flaring where a double should be?

I had a blow out at the end of the day at work, my tool wouldn't bite the steel line hard enough to smash the first stage, so I just ran the cone down to get something the nut could bite to so I could get the line down and get home to where my better supplies were, cleaned it off, tested it gingerly and headed out.

When I got home I stood ont the pedal as hard as I could with the engine running, and it felt like it was holding. I got under, inspected it, and the line is still dry.

So I guess the question is, would you trust it, or would you make a new line that is flared properly at both ends?

 

[alwaysFlOoReD]

I think why a double flare is required is because a split in the flare would be a lot more obvious. Also less easy to make the flare off center. Could also have something to do with work hardened metal that can crack over time. As a temporary measure I would be fine with it but would plan on doing a double flare asap.

 

[ericbphoto]

I think why a double flare is required is because a split in the flare would be a lot more obvious. Also less easy to make the flare off center. Could also have something to do with work hardened metal that can crack over time. As a temporary measure I would be fine with it but would plan on doing a double flare asap.

I agree with this.

 

[adsm08]

As a temporary measure I would be fine with it but would plan on doing a double flare asap.

Well the line I made tonight is super ugly, the wrong length, partially kinked, and I reused the old rusty line nuts. This was very literally throw together from ppieces I had available.

The rub is that this is one of my only two operational vehicles right now. I am just trying to decide if I can trust it until next week when I actually have the time to do it right, or if I need to get up and out the door extra early to fix it tomorrow morning.

 

[alwaysFlOoReD]

Front or rear?
How good are the shoes?

 

[adsm08]

Front or rear?
How good are the shoes?

Its on a rear line. The rear shoes are good, although I have an adjuster pawl that has a some stress damage. I haven't had time to order one yet.

 

[4.0blue98]

I'd carefully trust it until next week but fix it then.

I've been slowly replacing all the lines on my 98. Sometimes before they leak...

 

[alwaysFlOoReD]

If the line blows you will still have 70% brakes left. Leave it til next week.

 

[sgtsandman]

If it’s holding, I would trust it for the short term but would look to fix that as time and money allows.

 

[bobbywalter]

yeah....short term....month if your not on a bumpy ass road....



hmmmm.... errrr.. there are no non bumpy ass roads in PA......but a few weeks i would not be too worried as long as your the only driver.


the single fails with vibration/work hardening rapidly compared to a double.

 

[Uncle Gump]

I'm surprised you even got it to seal...

In my humble opinion... it's an accident waiting to happen.

 

[rusty ol ranger]

Every time ive done a brake line its a single flare.

Never had a flare blow out.

 

[Uncle Gump]

Every time ive done a brake line its a single flare.

Never had a flare blow out.

Rusty... love you man

But this is one of the dumbest things I've seen you post... sorry

I will stick with my statement..

A single flare on a brake line is an accident waiting to happen. I will modify it to say that it is not a matter of if it will fail but a matter of when it will fail. Chances are... it will happen at the worst possible moment in time.

 

[RangerFabWorks]

I’m with rusty. I’ve been doing single flares for years. Never an issue.

the new copper type stuff flares so nice. It’s well worth the few extra bucks

 

[Uncle Gump]

Oh good lord...

You guys can't be serious?