Notices
C4 General Discussion General C4 Corvette Discussion not covered in Tech

How to make the brake line bubble flare?

Old 06-08-2008, 07:59 PM
  #1  
John S 1961
Melting Slicks
Thread Starter
 
John S 1961's Avatar
 
Member Since: Jul 2004
Location: Scottsdale AZ
Posts: 2,061
Received 191 Likes on 134 Posts

Default How to make the brake line bubble flare?

how do I remake the bubble flare at the proprotioning valve so I can cut off and replace a seriously corodded fitting at the brake prop valve which is leaking badly?
Old 06-08-2008, 08:07 PM
  #2  
jcb5565
Burning Brakes
 
jcb5565's Avatar
 
Member Since: Jun 2007
Location: Stockton California
Posts: 804
Likes: 0
Received 0 Likes on 0 Posts

Default

Do you have a double flair tool? If you do it a two step process, first flair it like a normal flair then put the double flair insert in and double it back on to its self. Its not hard, try it on a scrap pipe first for practice.
Old 06-08-2008, 09:05 PM
  #3  
Livin the Dream
Pro
 
Livin the Dream's Avatar
 
Member Since: May 2007
Location: Robesonia Pa
Posts: 638
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by jcb5565
Do you have a double flair tool? If you do it a two step process, first flair it like a normal flair then put the double flair insert in and double it back on to its self. Its not hard, try it on a scrap pipe first for practice.
I also have put the clamp into a vise to hold it shut . This has given me a better double flair -keeps the line from moving . The 2nd flair takes a little more pressure . but is is not hard at all
Old 06-08-2008, 10:42 PM
  #4  
VetteSlave
Safety Car
 
VetteSlave's Avatar
 
Member Since: Jul 2007
Posts: 3,918
Likes: 0
Received 1 Like on 1 Post
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Default

Here ya go. Cheap too
http://www.harborfreight.com/cpi/cta...emnumber=40878
Old 06-08-2008, 11:54 PM
  #5  
86PACER
Le Mans Master
 
86PACER's Avatar
 
Member Since: Jan 2003
Location: Santa Maria CA
Posts: 5,858
Likes: 0
Received 5 Likes on 5 Posts

Default

Originally Posted by John S 1961
how do I remake the bubble flare at the proprotioning valve so I can cut off and replace a seriously corodded fitting at the brake prop valve which is leaking badly?
With a double flaring tool.

If there is enough slack on your line, you might get away with just cutting right below the existing flare, sliding the old fitting off, new fitting on, then re flaring the end and ending up with enough line to re attach. If not, you need to splice in an extension to reach.

Either way no need to buy a tool you'll probably just use once. Go to Autozone and rent their double flaring tool. Part# for SAE version is 27015. Part number for Metric version is 27012. The instructions are right on the box. The diameter of your line will determine which kit you need.

If you need a tube bender, they have two available for rent also.

Part#27134

and

Part#27013



You leave a $25 deposit and get it back when you return the tool. So basically it's free as long as you don't break it or loose parts.

I used their flaring tool recently to make perfect flared ends on my trans line. I had a leak and cut the bad section out and spliced in a new section.

Napa carries straight sections of brake line with fitting already attached for dirt cheap (less than $5.00). They also carry the fittings by themselves depending on which way you're doing it. You should not be spending more than $10 for this repair.

I used a small pipe cutter to cut the line like this one:

Old 06-09-2008, 04:25 AM
  #6  
skip5015
Advanced
 
skip5015's Avatar
 
Member Since: Feb 2008
Location: Illinois
Posts: 62
Likes: 0
Received 0 Likes on 0 Posts
Default

What You need is an ISO flaring tool. I was lucky enough to have a friend who had one and let Me borrow it. Not sure where You can rent one. Another idea is to go to Napa and buy a repair line with the ISO or bubble flare and replace the whole line. This is what I would recomend since the line could be weak in other places. Good luck. Skip
Old 06-09-2008, 12:03 PM
  #7  
John S 1961
Melting Slicks
Thread Starter
 
John S 1961's Avatar
 
Member Since: Jul 2004
Location: Scottsdale AZ
Posts: 2,061
Received 191 Likes on 134 Posts

Default ISO bubble

thanks, I knew it wasnt an inverted double flare, now I know the real description!
Old 06-09-2008, 03:27 PM
  #8  
86PACER
Le Mans Master
 
86PACER's Avatar
 
Member Since: Jan 2003
Location: Santa Maria CA
Posts: 5,858
Likes: 0
Received 5 Likes on 5 Posts

Default

Originally Posted by John S 1961
thanks, I knew it wasnt an inverted double flare, now I know the real description!
Your poor description did not help any either.
Old 06-09-2008, 10:43 PM
  #9  
MK 82
Melting Slicks
 
MK 82's Avatar
 
Member Since: Feb 2008
Location: Palm Beach
Posts: 3,286
Likes: 0
Received 5 Likes on 3 Posts
Default

Originally Posted by 86PACER
Your poor description did not help any either.
Now don't we feel better!
Old 06-10-2008, 06:36 AM
  #10  
Road Agent
Drifting
 
Road Agent's Avatar
 
Member Since: Aug 2004
Posts: 1,430
Likes: 0
Received 2 Likes on 2 Posts

Default

Originally Posted by Livin the Dream
I also have put the clamp into a vise to hold it shut . This has given me a better double flair -keeps the line from moving . The 2nd flair takes a little more pressure . but is is not hard at all
Old 06-10-2008, 06:39 AM
  #11  
Road Agent
Drifting
 
Road Agent's Avatar
 
Member Since: Aug 2004
Posts: 1,430
Likes: 0
Received 2 Likes on 2 Posts

Default

Are the lines metric or inch?
Old 06-10-2008, 07:01 PM
  #12  
texas 85
2nd Gear
 
texas 85's Avatar
 
Member Since: May 2008
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default

If its ISO its metric

Get notified of new replies

To How to make the brake line bubble flare?



Thread Tools
Search this Thread
Quick Reply: How to make the brake line bubble flare?



All times are GMT -4. The time now is 06:43 AM.