Double Flair - Team Camaro Tech
Brakes, Suspension & Steering Conversion questions, Steering & Handling

 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old Feb 10th, 02, 02:59 AM Thread Starter
Senior Tech
 
Join Date: Nov 1999
Location: Abilene TX, USA
Posts: 394
Post

What is a double flair on brake lines. Is there such thing as a single flair and is it what you get with the tool that holds the line and then screws in a wedge looking thing.
RickB1B is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old Feb 10th, 02, 03:50 AM
SY1
Senior Tech
Dave
 
Join Date: May 2001
Location: Michigan
Posts: 2,920
Post

Rick,
a single flare is made with a standard flaring tool, block and the wedge shaped tool you describe. It simply drives down into the tube and makes a nice 45 or 37 degree flare depending on what tool you're using. The double flare folds the tube down inside of itself while making the same flare angles. It is much safer and much stronger than the single flare. That's why it is used on brake lines and fuel lines. It is much less prone to cracking. Snap-On and many auto parts stores sells a kit for double flaring tubes. I paid about 50 bucks from Snap-On for mine and it has paid for itself many times over because I make all my own brake and fuel lines.

If you are using AN aluminun or steel fittings don't make the mistake that almost everybody makes. Get the right tool to make the right angle of flare you'll need. AN and automotive SAE fittings use different flare angles and are not interchangable although many people do mix them.
SY1 is offline  
post #3 of 7 (permalink) Old Feb 10th, 02, 05:56 AM
Senior Tech
Carl
 
Join Date: Apr 1999
Location: La La Land, CA
Posts: 2,707
Post

SY1 has is right. Just to add a little more info, you do not need to double flare stainless tube. It will crack. Also, aluminum tubing over 3/8" does not require double flaring.

Carroll Smith wrote a book "Nuts, bolts, fasteners, and Plumbing" that is a great laymans guide to high-peformance fasteners and plumbing.

------------------
The Red Beast http://www.geocities.com/casanoc
CarlC is offline  
 
post #4 of 7 (permalink) Old Feb 10th, 02, 09:30 AM
Senior Tech
 
Join Date: Nov 2001
Location: Oxford Pa.
Posts: 503
Post

CarlC....that IS an excellent reference book...I'd recomend that one to anybody that does any fabricating, wether<sp> it's flairing lines or simply changing a bolt...
18436527 is offline  
post #5 of 7 (permalink) Old Feb 10th, 02, 11:34 AM
SY1
Senior Tech
Dave
 
Join Date: May 2001
Location: Michigan
Posts: 2,920
Post

CarlC,
You're right about the stainless. boy is that stuff hard to work with. On some aircraft thrust reversers Dee Howard uses flare fittings and stainless lines. Hard to believe in this day and age a major aircraft modification center would use flare fittings on a 3000 psi system, but they did. Cracks resulting in leaks are common with these lines. All the thrust reversers I have seen other than these used MS fittings and never leak, or crack.
SY1 is offline  
post #6 of 7 (permalink) Old Feb 10th, 02, 05:37 PM Thread Starter
Senior Tech
 
Join Date: Nov 1999
Location: Abilene TX, USA
Posts: 394
Post

Thanks guys. I guess I'll have to get one of these someday.
RickB1B is offline  
post #7 of 7 (permalink) Old Feb 10th, 02, 07:07 PM
Senior Tech
Carl
 
Join Date: Apr 1999
Location: La La Land, CA
Posts: 2,707
Post

Rick,

Yikes! I thought only my wife's blood pressure got to 3000 psi!

If you're still flying The Bone the maintenance guys can set you up with all the fittings and tooling necessary. They have the cool stuff.

------------------
The Red Beast http://www.geocities.com/casanoc

[This message has been edited by CarlC (edited 02-10-2002).]
CarlC is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome