I noticed that you have two types of unions in the video, but only demonstrated on one of them. So, out of the two types of unions you have on the video, is there any benefit to using one type of union over the other? Thanks!
When I went to automotive school (UTI) 35 years ago they told us that any flaring to a DOT double-walled steel brake line had to be DOUBLE FLARED per DOT regulation for automobiles for safety and Federal compliance. This requires special flaring tools. Did they tell us the wrong thing at UTI?
Correct. He states in the video that he covered flaring in another video. He also says the lines would be flared before assembling while he is putting the union in.
My guess would be they were correct. Using compression fittings to connect two brake lines in tight areas under the vehicle used to be nice, but since the advent of ABS systems and their higher pressures, everything has to be double flared and it's impossible to fit a double flaring tool in tight spots.
Quick question: in the beginning of your video, it looked like you were showing (2) different union's, the double flare which you showed, and I believe a "bubble flare" union in the foreground. Is that correct ??? Any advantages to either going with double flare vs bubble ??? I have a Mastercool hydraulic flare tool and it's a two step process making a double flare vs single step making a bubble flare. I'm in the process of doing this on my Ford Expedition and it's all bubble flares, although I just finished doing a Toyota Camry which used double flares so I can go either way. Just wondering if there's any advantage to one or the other. Thanks for your video.
Is it better to have one side male and the other side female ? That how I have see even on some brand new vehicles I need to do the same job but I am not sure what to use Male fitting both sides with female connector or male one side and female the other
Hey Backyard Mech ever have a rough time reconnecting to a rear wheel cylinder? I am frigging struggleing too get it to line up or something it is a rear drum, on a jeep. Any thoughts would be VERY VERY GRATEFUL . ~Thanks for your time.
Adam Ram: if by now you haven't sourced the legal status of this repair, let me assure you this is the only method that is correct; joining two ends of brake line that have been flared either with a single or double flare with brass- ( as we just witnessed) or steel unions is the correct repair. No compression fittings of any kind should be used as a repair on a vehicle just FYI. The legality is different state by state, for instance Pennsylvania will require the correct method of repair as mentioned above and stated in this vid. cheers!
@@williamvw32wf I understand that compression fittings should not be used at all for brake lines. However, is it okay to use compression fittings on fuel lines? Thanks!
@@Zeberka767for the correct method of joining it to pieces of fuel line it often depends on what material your fuel line is, it's generally acceptable to use compression fittings on steel to steel lines when free of rust. Alternatively with steel and nylon fuel lines the manufacturer DORMAN makes one piece unions with viton o-rings they are a push connect fit. They are similar to The "SharkBite" product made for household plumbing. And lastly if you have two pieces of nylon fuel line you are trying to join the manufacturer mentioned above also makes a splicing equipment for nylon and nylon. Your local carquest/ Napa autopart supplier should carry these items.
@@williamvw32wf The fuel line that I will be joining is going to be steel to steel line. As you mentioned, compression fittings are acceptable, however, would a double flared line and a union as shown in this video be more preferred as an extra measure of safety or would a compression fitting suffice? Furthermore, I noticed that there are two types of unions in the video, but it was only demonstrated on one of them. So, out of the two types of unions shown in the video, is there any benefit to using one type of union over the other? Thanks!
well, i dont want to tread onur video her but first, ur not to use brass unions on high pressure applications. use stainless steel or just steel. also you are to DOUBLE FLARE brake lines w a flaring tools anvil it came with. vids on creating doubles. strait from the horses mouth ... Safe, maybe. Legal, not by a long shot. The use of brass is strictly forbidden by FMVSS 106 and 116
This is an example of how not to repair your brake lines. Not only is this illegal in most states, it's dangerous. Those brass compression ftgs aren't designed for hydraulic pressure. They can blow apart, especially during a panic stop. It can be a pain in the ass to replace all the lines on a vehicle, but I would rather do that then take a chance of plowing into somebody, when the brakes go out. Compression ftgs are ok on your kitchen sink, but absolutely not on brake lines! Total hack job.
yeah.. you keep saying that safety sally. tell that to those who have used compression fittings on for years without issue. they work in a pinch. that's why the parts stores carry them. this will keep you up at night but think, in my use, i am not alone. i've hauled scrap in my beater that has exceeded the tagged weight limit on my truck using multiple compression fittings. i'm talking like 12,000 on 1/2 ton with neglected rear brakes that the adjusters have been seized on for years. my thought on the matter, no issues and no near misses really. i don't put myself were hard braking is really needed and those who put themselves in a position to be hit maybe they should be hit. i'm not talking about normal traffic, i mean the idiots on the roads. needing to brake hard enough to blow fittings, maybe you need a wreck to learn from.
this is not compression fitting research before you say something stupid on my car subaru theres a 2 way splitter oem thats made out of brass so its definetly legal if you double flare it and have a brass union bud .I swear people dont even know the differnce between a compression and inverted flare fitting lmao do the research stop acting like you know it all
@@mrsir5784 yeah usually I hear "mechanics" tell me to use compression fittings because it is easier but that is completely illegal, however a union and double fairing is legal
when I trained in HVAC, part of the kit they gave us was a fixture you attached to the pipe and another fixture that wrapped around that fixture to make a flare fitting on the pipe end. Hydraulic pressure is probably a bit high for a compression fitting. Good luck getting flare tools under there. I could barely flare a pipe on my knee.
if you're not completely inept you'd realize that he said he had another video where he showed how to flare them. maybe you should let someone what work on your car
Doing my brake lines for the first time and this video couldn't have helped more thank you
I noticed that you have two types of unions in the video, but only demonstrated on one of them. So, out of the two types of unions you have on the video, is there any benefit to using one type of union over the other? Thanks!
Thank you. Very useful
Thanks for the insight,I’ve got to do this to mine
Awesome, fantastic video!!!
When I went to automotive school (UTI) 35 years ago they told us that any flaring to a DOT double-walled steel brake line had to be DOUBLE FLARED per DOT regulation for automobiles for safety and Federal compliance. This requires special flaring tools. Did they tell us the wrong thing at UTI?
Correct. He states in the video that he covered flaring in another video. He also says the lines would be flared before assembling while he is putting the union in.
My guess would be they were correct.
Using compression fittings to connect two brake lines in tight areas under the vehicle used to be nice, but since the advent of ABS systems and their higher pressures, everything has to be double flared and it's impossible to fit a double flaring tool in tight spots.
Quick question: in the beginning of your video, it looked like you were showing (2) different union's, the double flare which you showed, and I believe a "bubble flare" union in the foreground. Is that correct ??? Any advantages to either going with double flare vs bubble ??? I have a Mastercool hydraulic flare tool and it's a two step process making a double flare vs single step making a bubble flare. I'm in the process of doing this on my Ford Expedition and it's all bubble flares, although I just finished doing a Toyota Camry which used double flares so I can go either way. Just wondering if there's any advantage to one or the other. Thanks for your video.
Instablaster
Double flare is the go to nowadays
Great video what flare did you use Male or Female?
James Mullen how the hell is it a great video convince me🤔
I meant for my first comment to go to another video, where the guy was using compression ftgs. My mistake. However, that brass union would concern me.
That union is fine. This is no more dangerous than the connection at your master cylinder, brake caliper or wheel cylinder.
Is it better to have one side male and the other side female ? That how I have see even on some brand new vehicles
I need to do the same job but I am not sure what to use
Male fitting both sides with female connector or male one side and female the other
I've been trying find this out too. I seen it done on 1 vid. I think though the opposing flares would butt to each other- did you find out?
@@Carlostypedid you find out 😂
@@user-vb5dd9db1v I didn't hold my breath thank god
Hey Backyard Mech ever have a rough time reconnecting to a rear wheel cylinder? I am frigging struggleing too get it to line up or something it is a rear drum, on a jeep. Any thoughts would be VERY VERY GRATEFUL . ~Thanks for your time.
idk what exactly you were having trouble w but i can never get mine in the rear cylinder in my yota pickup. always cross threads the nut
@@orinadolf1928 Use to have the same problem all the time, thank god I now have a vehicle with disc brakes all around.
is there any benefit to using one type of union over the other? if the thread pitch and everything is the same
Hi sir, is that safe and legal ? I did the same fitting connection for my master cylinder hose that cary fluid to mbs pump ...
Adam Ram: if by now you haven't sourced the legal status of this repair, let me assure you this is the only method that is correct; joining two ends of brake line that have been flared either with a single or double flare with brass- ( as we just witnessed) or steel unions is the correct repair.
No compression fittings of any kind should be used as a repair on a vehicle just FYI. The legality is different state by state, for instance Pennsylvania will require the correct method of repair as mentioned above and stated in this vid.
cheers!
@@williamvw32wf I understand that compression fittings should not be used at all for brake lines. However, is it okay to use compression fittings on fuel lines? Thanks!
@@Zeberka767for the correct method of joining it to pieces of fuel line it often depends on what material your fuel line is, it's generally acceptable to use compression fittings on steel to steel lines when free of rust.
Alternatively with steel and nylon fuel lines the manufacturer DORMAN makes one piece unions with viton o-rings they are a push connect fit. They are similar to The "SharkBite" product made for household plumbing.
And lastly if you have two pieces of nylon fuel line you are trying to join the manufacturer mentioned above also makes a splicing equipment for nylon and nylon. Your local carquest/ Napa autopart supplier should carry these items.
@@williamvw32wf The fuel line that I will be joining is going to be steel to steel line. As you mentioned, compression fittings are acceptable, however, would a double flared line and a union as shown in this video be more preferred as an extra measure of safety or would a compression fitting suffice?
Furthermore, I noticed that there are two types of unions in the video, but it was only demonstrated on one of them. So, out of the two types of unions shown in the video, is there any benefit to using one type of union over the other? Thanks!
That still leaks believe me
Whats the name of that connection peice?
Union
well, i dont want to tread onur video her but first, ur not to use brass unions on high pressure applications. use stainless steel or just steel. also you are to DOUBLE FLARE brake lines w a flaring tools anvil it came with. vids on creating doubles.
strait from the horses mouth ...
Safe, maybe. Legal, not by a long shot. The use of brass is strictly forbidden by FMVSS 106 and 116
This is an example of how not to repair your brake lines. Not only is this illegal in most states, it's dangerous. Those brass compression ftgs aren't designed for hydraulic pressure. They can blow apart, especially during a panic stop. It can be a pain in the ass to replace all the lines on a vehicle, but I would rather do that then take a chance of plowing into somebody, when the brakes go out. Compression ftgs are ok on your kitchen sink, but absolutely not on brake lines! Total hack job.
It's not a compression fitting. This is flared.
yeah.. you keep saying that safety sally. tell that to those who have used compression fittings on for years without issue. they work in a pinch. that's why the parts stores carry them. this will keep you up at night but think, in my use, i am not alone. i've hauled scrap in my beater that has exceeded the tagged weight limit on my truck using multiple compression fittings. i'm talking like 12,000 on 1/2 ton with neglected rear brakes that the adjusters have been seized on for years. my thought on the matter, no issues and no near misses really. i don't put myself were hard braking is really needed and those who put themselves in a position to be hit maybe they should be hit. i'm not talking about normal traffic, i mean the idiots on the roads. needing to brake hard enough to blow fittings, maybe you need a wreck to learn from.
this is not compression fitting research before you say something stupid on my car subaru theres a 2 way splitter oem thats made out of brass so its definetly legal if you double flare it and have a brass union bud .I swear people dont even know the differnce between a compression and inverted flare fitting lmao do the research stop acting like you know it all
@@mrsir5784 yeah usually I hear "mechanics" tell me to use compression fittings because it is easier but that is completely illegal, however a union and double fairing is legal
They literally sell them at every automotive parts store and on the package it specifically says for brake lines.
Well that was useless
Yeah how about adding showing how to flare the brake lines thanks for wasting my time
when I trained in HVAC, part of the kit they gave us was a fixture you attached to the pipe and another fixture that wrapped around that fixture to make a flare fitting on the pipe end. Hydraulic pressure is probably a bit high for a compression fitting. Good luck getting flare tools under there. I could barely flare a pipe on my knee.
if you're not completely inept you'd realize that he said he had another video where he showed how to flare them. maybe you should let someone what work on your car
Yea. Just stick all those fittings on without flaring a single one. Good luck bud
Yeah bud! He said to flare the ends. Which he did on the actual repair
He clearly said to flair it🤣 fucking 🤡