Need help on brake line flanges - Vintage Mustang Forums
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post #1 of 28 (permalink) Old 06-15-2019, 02:21 PM Thread Starter
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Need help on brake line flanges

I have installed front disk brakes on my 66. I also installed the dual bowl master and distribution block / proportion valve /residual valve. I have to be the world's worst flange maker. The line that goes from the distribution block to the rear bake line leaks. Also the line that goes from the rear brake section of the master to the distribution block leaks. I have size 3X hands and I've been working in that little area for longer than I care to admit. Can anyone tell me how to correct my flanges? I've watched the videos on Youtube, but I'm still doing something wrong.
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post #2 of 28 (permalink) Old 06-15-2019, 02:27 PM Thread Starter
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Here are my flanges.
Attached Images
File Type: jpg flange 07.jpg (29.2 KB, 143 views)
File Type: jpg flange08.jpg (27.3 KB, 141 views)
File Type: jpg flange 01.jpg (30.1 KB, 18 views)
File Type: jpg flange 02.jpg (20.6 KB, 18 views)
File Type: jpg flange 03.jpg (26.8 KB, 16 views)
File Type: jpg flange 04.jpg (16.1 KB, 138 views)
File Type: jpg flange 05.jpg (92.8 KB, 14 views)
File Type: jpg flange 06.jpg (117.5 KB, 17 views)
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post #3 of 28 (permalink) Old 06-15-2019, 02:56 PM
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Try this, put some very slick assembly lube on the flare and nut, then go tight loose tight loose a number of times to seat it in. Then tight for the final seal.

My favorite lube for this is Torco MPZ engine assembly lube.
The SnapOn brake line wrench works much better than the Craftsman or Mac.

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post #4 of 28 (permalink) Old 06-15-2019, 03:32 PM
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I can’t tell from the pic but is that single or double flared? If it’s double try not cranking down when making the double part. If it’s single you need to make it a double flare.
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post #5 of 28 (permalink) Old 06-15-2019, 06:14 PM Thread Starter
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Thank you. I'll give it a shot.
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post #6 of 28 (permalink) Old 06-15-2019, 06:59 PM
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pics look like single flair which is No bueno
Oh and they are called flares not flanges
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Last edited by 2nd 66; 06-15-2019 at 07:06 PM.
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post #7 of 28 (permalink) Old 06-15-2019, 07:04 PM
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Quote:
Originally Posted by 2nd 66 View Post
pics look like single flair which is No bueno
Oh and they are called flairs not flanges

'flare' would be the correct spelling.
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post #8 of 28 (permalink) Old 06-15-2019, 07:05 PM
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Quote:
Originally Posted by carlite65 View Post
'flare' would be the correct spelling.
your correct


Brad
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post #9 of 28 (permalink) Old 06-15-2019, 07:46 PM
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your correct

"You're correct" would be correct.
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post #10 of 28 (permalink) Old 06-15-2019, 07:47 PM
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They certainly look like single flares to me and as stated, that is not correct for brake lines.
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post #11 of 28 (permalink) Old 06-15-2019, 08:24 PM
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Quote:
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"You're correct" would be correct.
Yep!

Anyway, the flaring tool should have come with directions and pictures.
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post #12 of 28 (permalink) Old 06-15-2019, 09:07 PM
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To me the end you say that is leaking the nut doesn't appear to me to be the correct one to be used on brake lines with a double flare. There doesn't appear to be enough recess for the flare to sit in properly.

Last edited by Grabber70Mach; 06-15-2019 at 09:14 PM.
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post #13 of 28 (permalink) Old 06-15-2019, 11:19 PM
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Meh, at least I got the terminology correct


Brad
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post #14 of 28 (permalink) Old 06-15-2019, 11:21 PM
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What your flare SHOULD look like... You need to use the double-flare adapter first before forming the flare.

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post #15 of 28 (permalink) Old 06-16-2019, 09:18 AM
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All good advice. I've tried several of the lower priced double flaring tools, but this is the only one I've found that produces flares as good as the high priced tools, and it is very easy to use:

https://www.eastwood.com/eastwood-on...16-tubing.html
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