Then lift it up.

Zxceelxuz Yes, I agree. Yet, I do not have a flaring tool and I do not trust myself to properly flare a line. The lines that are pre-flared are inexpensive, so, I go that route. If I had more jobs to perform, I would buy a flaring tool and lift the vehicle.

easier said cant even see the line behind the fender well goes back along firewall impossible to get to without pulling motor

​@@joescheller6680 Just go around it and put a new break line. You don't have to pull the motor.😊

@@joescheller6680 so many bends and turns and going through between the body and front suspension...only way is to remove the engine or, use compression fittings...all vehicles have their brake lines installed on the assembly line than, anything else...

Oh cool, you've defied the laws of physics. For us normal humans though, compression fittings are a terrible idea for a permanent brake line repair.

How to repair broken fuel line to csrb

Sean Murphy Mt. Sterling is in the middle of nowhere. I'm from northern Kentucky and I like it down there.

Then buy cars that have steel brake lines? Don't like what someone's sellin, don't buy it haha.

Blame congress: CAFE standards make weight a premium concern, or else...

All true, and at the same time, it's never a good idea to use these things as a permanent brake line repair like this simpleton.

@@the.reel.mccoy. STFU

@@Doomzdayxx who said it was permanent? and many mechanics use this method...look at AA1 videos..

+John Hall Thanks John !

I suggest researching a bit more and you will find that the staggering majority advise of both DIYers and professionals is DON'T DO IT.

... yeah cuz most people are completely INCOMPETENT and can barely feed their vehicle GAS. Just came off Scotty Kilmers channel and the same shit. NOW, IF this procedure is ILLEGAL in your state, (this can have more than one definition) ... me thinks you should do things the way they TELL YOU. These compression fittings you can purchase from your local auto let down outlet DO state the fact "NOT INTENDED FOR HIGH PRESSURE.", ... but what EXACTLY IS the definition of HIGH pressure? My fucking BLOOD. Yeah Stinky Cheese, I concur, .. far better to do your research in any case cause too many are lemmings and can NOT think for themselves.

They are illegal because you cannot verify the integrity of the remaining line. Brakes lines generally fail because of rust. If it rusted enough to have a hole... it's obviously not strong / thick enough to support a compression ring, also imperfections on the surface of the line also cause leaks and failures.

If they do vehicle inspections in your area it should have at least failed that.

Yeah, it literally say "not for brake lines" on the package.

@@bill7774Brass compression fittings are rated for what..1-2k psi? No brake system puts out that kind of force

@@blitzcourt5021 I have used them many times. That's just what it says on the package.

They should write that on your epitaph, - Kam Gamble rests here. He hit a concrete barrier at 80mph, and had no idea it was there ! -

not a good idea to on brake lines for autos on public roads.

I bought an old truck that had them and when I went to the mechanic shop they chewed my ass out lol it wasn't my fault on a 1973 GMC! But you are correct!

the stainless steel ones are much stronger than brass ones which was shown in the video and 99% of the time are used in automotive not the steel ones. because were i am brass ones cost 2.50 or buy a steel one $20.00 if your cheap enough to use one your likely going for $2.50

Legal in some states, not brass though, steel.

Just a guess but a compression seal will more likely have more of a chance of the line sliding out if not done properly. As the OP mention some compression fittings can hold a lot of pressure but the line has more likelihood to slip out vs a double flared end line. Eric the Car guy was going to use his Ford Fairmont for racing and said compression fittings in his brake line would cause him to fail his tech inspection so I guess they aren’t supposed to be used for some reason.

We use swagelok at the chemical company as well

Glad it helped Billy !

Could you elaborate on what's to too tight. I'm bout to do this with a fuel line and dont want to over tighten

Like to know myself on steel and composite fuel lines same sitch. Best i have found out is hand tight plus a full half turn but dont quote me.

Yup,compression on brakes is illegal in all 50

Only on commercial vehicles.Automotive stores sell these all day, every day in packages that specifically say for brake lines.

+1 for rusted lines are even more dangerous -1 for not taking a little more time to change the whole line right?

im not a mechanic but always follow the line up and make sure there not rusted for my car but i usually replace them this is only a temporary fix untill you can get the whole lines ect replaced if your broke down or just dont have the money untill payday i like unions and like i said all the cars ive ever owned the lines rusted before anything went wrong with the union. a certified mechanic would just replace the lines or its what he should do when working on someones car.

When tightening the fitting, how tight do you wanna go?

I don’t know if I would use on a transmission line thers a lot of psi on a tranny line

@@jeffleblanc8850 I thought oil cooler lines were pretty low psi wise?

If you upgrade all the lines to 1/2" pex, the fluid flows better and allows for better braking. Not to mention you can mix it up with red, blue, white and or clear tube. I hear the colors add a few hp. 🙃🤥

Man, that sounds so much better than my setup, I use garden hose and lemon 🍋 clips.

Yes, but the brass is not

@@donnymarwin5776 00

Even if done correctly, they will leak under severe load like hard and fast braking or braking while pulling a trailer. Especially if the vehicle is rear drums and one of those braking scenarios happen with a compression fitting on the front disc branch. If you used compression fitting for a single rear drum or even for a hydraulic clutch line you might be able to get away with it. Also, when you say the job is "impossible even with best tools on market", what you really mean is that the job is impossible to do quickly and easily. Much work might be needed to replace an entire line or just a section if you want it done properly as you know. You are 100% correct about your last statement though. Nicop is great. It's far easier to work with than stainless thats for damned sure.

Here's a tip for you. Never use compression fittings on a brake line. NEVER!!

A Dorman P/N 800-202 steel CF for 3/16 line is rated at 5k PSI. I wouldn't use brass, but I've used the Dorman or comparable steel ones for years with no failures. They won't pass a state inspection if they're discovered, but they do work, and very well. I live in the rust belt and the line that goes front to back along the pinch weld usually takes a crap and this is a very safe and cheap alternative to trying to get rusty fittings out of ABS modules, calipers, prop valves and flaring a whole new line. Brake pressure will rarely exceed 1600 PSI and the 5000PSI rating on the steel fitting is nearly a 3:1 safety factor, I'm good with that. Once a steel CF is on both sides of a line, a truck will not be able to pull it apart, the flared end and fitting will fail first. There's a fella on YT that actually did just that and the flared ends were the weakest link at that point. Steel CF is all I'll use, nothing else for a brake line.

And use a drop or two of ATF on the ferrule and threads, prevents galling and just makes it all work better for some reason.

Agreed, brake fluid can soften brass.

​@@genefogarty5395Dorman are brass too

@@gardnetbush9768 Not the 800-202, they're steel. They have a disclaimer about using them on hyd. systems on the website, but lawyers don't wrench, they protect companies from litigation so that's why it's there. I've never had a problem with them.

I was thinking exactly the same thing! I installed a water filter copper line for the refrigerator ice maker for the first time using these things about 24 years ago. I didn't know what they were called back then. Seriously, there are good ways to save money on car repairs. This is not a good one.

That's funny because a big brand auto parts store in the US just sold me this and it's labelled as a break line repair kit, I'm using it for a fuel line though.

@@ghost2coast296 You might have bought one from a big brand name store but I will guarantee you that a brass compression fitting like you would use on a water line is not acceptable for brake line repairs I don't care what they say. If it is truly for brake line repairs it is a high pressure compression fitting that is probably steel and costs around $12 ea.

i went to napa auto parts store and asked for brake line compression union, guy looked it up in the computer and they had it in stock

if you have to use these get the all steel ones that can handle higher pressure.....these brass ones cant handle it.

Those will still leak. Line replacement or flared unions are the only legitimate fix.

It's legal in some states, not others. That means it's safe in all states. Not a brass CF, but a Dorman 800-202 is good for 5k psi on 3/16 brake line, I don't know of any hyd. brake system pushing more than 2100 psi. The Dorman part is steel and I'm in the rust belt, I have a few on my trucks with hydroboost and it's been years, they're still holding pressure. I'll do a quick safe repair on my own plow trucks, but I can't pass a vehicle that I see any CF on in the brake system. Fuel on the other hand, I'll use either, never had a problem in 30 years of racing and passed NHRA tech with them on fuel systems in a 7 second 230" wb dragster.

Even fuel injected?

It seems like if one hit some really rough terrain or bumps, if your suspension was shotty; theoretically could cause the fitting to seperate idk.. But not everybody can run a whole new line or has access to that one tool that puts a push fitting flare on steel line

the cheapest chinese brass compression fittings work fine. have done it for years. lasts forever on rear brakes. on fronts eventually it will blow out, but thats because front brakes use higher volume of fluid, probably higher pressure too. but they will get you home or last until payday when you can replace the line. rear brakes the fitting will outlast the car..guaranteed! i live in michigan where cars rust bad, it always works. sae says dont do it ever but it works. just make sure you tighten very good and test by firmly stomping on the brakes in an area where you wont hit someone before tr4usting it to be as good as new.

no one did theyre just regurgitating bullshit they see on google with no actual experience personally.

There are flared union fittings that are designed to connect two pieces of brake line together.

did u take the new lines? if not, how are the comp fittings holding up?

@@superjojo555 No, I did not take the two new brake lines because they would have charged me for another brake job! I will never return to "Holmes Auto Repair"! I don't drive a lot and as of today to the best of my knowledge the fittings are holding up.

@@PappyNet01 Go to the AG office and tell them about the repair. What they used was illegal in Fla. shops cannot install these. Get your money back through the AG or tell the shop you're going to the AG.

@@genefogarty5395 How can it be illegal in Florida? Florida does not have the annual auto safety inspections and I am glad we don't because both New Jersey and Virginia robbed me for nearly 30-years!

@@PappyNet01 Yet you got robbed by a Florida repair shop. Have the line replaced and stop being cheap. Deal with a shop that has the sense to do the job right and pay for it once. They are not DOT approved and if you kill someone in an accident, you've just lost everything you have. Cheers!

Only need to bleed the radiator

@@greasedmonkey7571 You're joking, right? 🤯

@@andrewcheatle4691 yes lol🤣🍻

Thank xxxx for that!Trouble is someone's probably gone & done that now 👍😅

Same size as the line you're putting it on...

Remember the person who posted this must have some hay that is not in the loft...aka. Well you know..

Geo Man, 100% true.

Was gonna say this myself. Never use a compression fitting on brake lines. They can be used on all other metal lines, fuel etc. Not brakes. Use a double flare union if you need to join lines.

not high enough brake pressures can be thousands of psi compression will fail under heavy load

It would work until it will eventually start to leak. Replace clutch line or use flare union.

The compression fitting isn't allowed on brake lines because they are prone to sudden failure. They are a lot more susceptible to failure from pressure differentials and vibrations. It's silly to use compression fittings when it takes 30 seconds to make your own flare or you buy premade lines.

+Zxceelxuz UK mot says its not advisable/recommend but it doesn't say you can't use them, well that's my.interpretation

covington race Here in Ontario, Canada, they are entirely illegal for brake line use. They simply aren't designed for the much higher pressures brake fluid is put under. I wouldn't understand why the UK mot would allow it, there's a reason no manufacture makes brake lines that way.

Zxceelxuz I read it wrong they are no appropriate, modifications are not allowed unless appropriate fittings are used, ferrule ones not being appropriate

Griffon129 How about you do something useful, like trying to breathe underwater?

I do hear what you are saying, Steve. However for rare adverse events, personal experience falls down as not being sensitive enough. Suppose the failure rate is 1/10,000. That means an average technician would almost never see it happen. But the guy who does may face criminal investigation, with no support from the legal system. It's what happened to General Motors and their ignition system fiasco. I would not want to face an angry family with their team of lawyers from such an indefensible position.

Steve Rob Why is the fact that he's (Scotty Kilmers) "used them for years and never had a failure" proof that they are they right way to do it and that the other way lacks common sense (as you implied)? If he used duck tape with the same supposed track record, would you also agree that that is the "right way"? How do you even know that, assuming he's telling the truth, the reason why he has never witness one fail was because a customer has never returned to him with a failed line? Any fitting has a chance of failure; the point of compression fittings being illegal in high pressure applications such as brake lines is that their chance of failure there is MUCH HIGHER than a double flare technique when both are done properly. This is especially true when we take the time factor into consideration, as the fitting ages. That doesn't mean that compression fittings will always fail, or even fail at an apparently high rate, but when it comes to your safety and that of your family you'll always want that higher factor of protection, especially if it just means putting in the extra ten minutes that it takes to build a proper flare, or even better, not using unions in your brake lines! Lawyers didn't just dream of these laws to make up liability claims; they were put together with input from engineers and trained experienced professionals that understand the mechanics involved in these devices to save lives. Thinking we just simply know better because we've seen it work is downright arrogant and ignorant. And you should be glad that these laws are in place, because if someone ever hurts anyone close to you and it turns out it was because they cut corners, you'll want them to pay for the rest of their lives. Lastly, I find it hypocritical and bewildering that we belittle safety and liability laws in our own countries (USA, Canada, etc.) and yet frown in distaste at the terrible quality products output by developing countries without such regulations. The next time you turn town a cheap Chinese product over a "Made in the USA" one for safety concerns, you should realize that you turned it down for exactly these reasons: cutting corners and disregard of safety regulations in production. Edit: Thank you backyardmech for putting in the hard work and demonstrating the technique. Demonstrating is not the same as advocating its use and knowledge is always the most important.

taledarkside​ do you have a link? I'm curious to check out the technology and pressure rating, etc. Thanks for the info.

Andrew G I have used these in cars for almost 40 years, including cars that i have raced at the drag strip at high speeds, I have NEVER had a problem. The problems arise when somebody installs one that doesn't know what they are doing. The ironic thing is, I have rarely used one on anything but brake lines. They are prone to failure just like anything else, but I would not lose sleep over having one on my vehicle that was installed by a professional mechanic.

You would never have one installed by a professional mechanic today. There is no reason to do it, legality issues aside. If you need a disconnect in the line then use a union, otherwise a straight run. It is a less reliable connection no matter how great the installer thinks he or she is. Gamble on something less important like how long you cook oatmeal, not car brakes.

this was done correctly lol these adapter are perfectly fine for brake line repair it easier just monitor for leaks like any other fix

@@dflex4180 in the UK you would fail an MOT (annual safety test) if you use these compression joints. So I wouldn't argue it's done correctly. Haha, as typing the guy says they are illegal where he lives. They are banned in many places as they can blow off if they loosen. Flared pipes will never do this. Just flare them and do it properly.

🤣🤣

dramatic Automotive Hardware F3451 3/16" High Pressure Steel Compression Union (5000 PSI) tell me this wont work..u cant cuz it does

Enough to get you all the way to the crash site...

@@DL101ca stop it they sell 5000 psi adapters like this 1500 psi is all that is needed