Brakes Looking to upgrade or get the most out of what you have stock? All brake discussions go here!

Proportioning valve to rear brake line problem

Thread Tools
 
Search this Thread
 
Old 08-24-2010, 07:17 PM
  #1  
Member

Thread Starter
iTrader: (4)
 
timonator's Avatar
 
Join Date: Jul 2005
Location: Il.
Posts: 176
Likes: 0
Received 0 Likes on 0 Posts
Proportioning valve to rear brake line problem

I'm trying to replace the brake line that goes from the prop. valve to the rear brakes. The problem I'm having is that I cant find an adapter fitting for the 3/16" line to the prop. valve. The guy at the parts store couldn't figure it out, and I don't know what to do to fix this. I already have the lines installed minus the adapter fitting. The car is an 86 IROC.
Thanks
Old 08-24-2010, 07:35 PM
  #2  
Supreme Member

iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,650
Likes: 0
Received 44 Likes on 42 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Proportioning valve to rear brake line problem

the stock line is 6mm, not 3/16. If you ran 3/16, i dont think you will find the right fitting anywhere

its 14mm1.5 bubble flare

this is the fitting, but its for the 1/4" / 6mm line
http://store.fedhillusa.com/m124.aspx

hate to say it, but your going to have to get creative if you ran 3/16 line, cause your pretty much boned

Last edited by //<86TA>\\; 08-24-2010 at 07:39 PM.
Old 08-24-2010, 09:43 PM
  #3  
Member

Thread Starter
iTrader: (4)
 
timonator's Avatar
 
Join Date: Jul 2005
Location: Il.
Posts: 176
Likes: 0
Received 0 Likes on 0 Posts
Re: Proportioning valve to rear brake line problem

The 1/4" lines looked like they were too big. The guy at the parts store convinced me to use the 3/16" but now can't help me with this dillema. He didn't have any 14mm fittings,not even in the catalog.
Old 08-25-2010, 01:05 AM
  #4  
Member

iTrader: (4)
 
hairysox33's Avatar
 
Join Date: May 2009
Posts: 161
Likes: 0
Received 0 Likes on 0 Posts
Re: Proportioning valve to rear brake line problem

I had the EXACT SAME PROBLEM. Listen to me, stop searching. 14mm is only a tiny bit smaller than 1/4". Take your two old fittings and bore them out with a drill press to 1/4", buy the 1/4" line (duh), bubble flare, and install. Stop wasting your time/money on fittings. I did. Btw, my brakes work fine now.
Old 08-25-2010, 08:30 AM
  #5  
Supreme Member

iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,650
Likes: 0
Received 44 Likes on 42 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Proportioning valve to rear brake line problem

Originally Posted by hairysox33
I had the EXACT SAME PROBLEM. Listen to me, stop searching. 14mm is only a tiny bit smaller than 1/4". Take your two old fittings and bore them out with a drill press to 1/4", buy the 1/4" line (duh), bubble flare, and install. Stop wasting your time/money on fittings. I did. Btw, my brakes work fine now.
i have done that before, works great

OP, unless you can put together a series of fittings to adapt to 1/4"/6mm hardline, your not going to find a solution in a single fitting
Old 08-25-2010, 08:35 AM
  #6  
Supreme Member

iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,650
Likes: 0
Received 44 Likes on 42 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Proportioning valve to rear brake line problem

Originally Posted by timonator
The 1/4" lines looked like they were too big. The guy at the parts store convinced me to use the 3/16" but now can't help me with this dillema. He didn't have any 14mm fittings,not even in the catalog.
if he convinced you to use the wrong stuff, and cant provide the proper fitting, make him refund you for the line.
Old 08-25-2010, 08:45 AM
  #7  
Supreme Member

iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,650
Likes: 0
Received 44 Likes on 42 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Proportioning valve to rear brake line problem

ok, heres a list of crap to use.

flare the 3/16 line with a SAE(inverted) flare, with the proper fitting, 3/8-24
http://store.fedhillusa.com/a13.aspx

then use a coupler of the same size
http://store.fedhillusa.com/a13.aspx

then use a 3/8 SAE to 7/16 SAE adapter
http://store.fedhillusa.com/ad343br.aspx

that will get you to 1/4",

then you need a 1/4" SAE fitting
http://store.fedhillusa.com/a24.aspx

a short piece of 1/4" line, with the above fitting on one side and this fitting on the other

http://store.fedhillusa.com/m124.aspx

that "should" do it, and all the fittings should be available at the parts store, with the exception of the 14mm nut (can you reuse your old one?), but thats a lot of bullshit to adapt the line, and its probably cheaper to just get the right line and use 1 fitting on each end.

lesson learned
Old 08-25-2010, 06:21 PM
  #8  
Member

Thread Starter
iTrader: (4)
 
timonator's Avatar
 
Join Date: Jul 2005
Location: Il.
Posts: 176
Likes: 0
Received 0 Likes on 0 Posts
Re: Proportioning valve to rear brake line problem

Ok, I got it fixed. Thanks for the help.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Reddeath210
Firebirds for Sale
14
10-06-2015 08:20 AM
kyleb24
Camaros for Sale
2
08-15-2015 08:24 AM
Leggman1
Brakes
6
08-12-2015 08:39 PM
Ginamariegault
Brakes
1
08-10-2015 08:33 AM
Leggman1
Transmissions and Drivetrain
3
08-06-2015 04:15 AM



Quick Reply: Proportioning valve to rear brake line problem



All times are GMT -5. The time now is 06:17 AM.