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#1 |
67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,857
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What am I doing wrong?- brake line
I have installed 2 different brake lines in the last week on the passenger side of the rear axle and both have leaked at the junction block where they split to each rear wheel
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Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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#2 |
State of Confusion!
![]() ![]() Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 46,926
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Re: What am I doing wrong?- brake line
What does the flaring seat and flare look like. I had one that had a small nick in the T-block fitting and would leak no matter what I did to it until I replaced it.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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#3 |
Nothing to see here.....
![]() Join Date: Jun 2007
Location: Shawnee, KS
Posts: 4,625
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Re: What am I doing wrong?- brake line
I know that some people use a petroleum resistant teflon tape, but make sure you get none on the tube mating surfaces.....
now for me, I had the same issue when I plumbed up 15 or so new lines. my MAJOR problem was that I was not torqueing the nuts down enough. I forgot the in/ft lb of torque they take, but after I went back through and tightened them down, I have'nt had another leak. remember, your trying to get metal to seal against metal, so the torque to do so will be more than you may think! and double check your 45 degree double flares and make sure they are true and absolutely clean.
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Doug ![]() ![]() The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. Thomas Jefferson |
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#4 |
Project Junkie! Fishing Poor!!
![]() Join Date: Dec 1999
Location: Olympia,Wa. 98512
Posts: 10,770
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Re: What am I doing wrong?- brake line
The brake line itself is not seating to the junction block. You may have a bad line or block. Also if you have stainless steel lines they are harder to get to seat than the steel ones. The fittings are not self seating pipe threads, so the threads can look just fine and the line will still leak. WES
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On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys |
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#5 | |
67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,857
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Re: What am I doing wrong?- brake line
Quote:
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Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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#6 |
67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,857
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Re: What am I doing wrong?- brake line
The first line I thought maybe I tightened it too much and crushed the flare but when I took it off tonight it looked good. I figured just to be safe I installed another new line and this one leaks also. I've never had to use teflon on brake line threads. I'm going to try removing it one more time to take another look but this is getting frustrating now. Thanks for the input so far!
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Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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#7 |
Senior Member
Join Date: Aug 2005
Location: tulsa OK
Posts: 3,070
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Re: What am I doing wrong?- brake line
replace the t-block....sounds like there is a burr in there (like 70step said)
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#8 |
67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,857
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Re: What am I doing wrong?- brake line
Where can I get a new block?
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Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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#9 |
Senior Member
Join Date: Aug 2005
Location: tulsa OK
Posts: 3,070
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Re: What am I doing wrong?- brake line
the threads isnt the sealing part, its the flare.....and id say its either the lines or the block, but with 2 diffrent lines odds are its the block......
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#10 |
Account Suspended
Join Date: Sep 2005
Location: Monroe, WA
Posts: 3,815
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Re: What am I doing wrong?- brake line
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#11 |
67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,857
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Re: What am I doing wrong?- brake line
Thanks for encouragement guys!. I had the truck out last Friday for the first time in 6 months and put about 50 miles on it
![]() ![]() Bill- that's what I'm thinking but isn't the flare (by design) supposed to seat itself as the threads are drawn up?. Even if it was not flush, as you begin to tighten it straightens itself out I thought. I know this is a simple fix, I'm not stressing anymore. I'll just take it off and have another look at the threads ![]() ![]()
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Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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#12 | |
Account Suspended
Join Date: Sep 2005
Location: Monroe, WA
Posts: 3,815
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Re: What am I doing wrong?- brake line
Quote:
![]() Seriously, yes, it should - but it sometimes doesn't. I always seat the flare and hold light pressure against it, then tighten down the tube nut. |
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#13 | |
67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,857
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Re: What am I doing wrong?- brake line
Quote:
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Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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#14 |
Registered User
![]() Join Date: Apr 2008
Location: Milton wi. 53563
Posts: 128
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Re: What am I doing wrong?- brake line
do you have long threads on the end that leaks .i found you dont get enuff torque. the brass fitting is a little too long . if thats not it i woud still replace the fitting and start over. i am from wi. and we always do it twice. murphys law. if it jams force it, if it breaks its defective. Old Money.
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#15 |
Senior Member
Join Date: Aug 2005
Location: tulsa OK
Posts: 3,070
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Re: What am I doing wrong?- brake line
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#16 |
Project Junkie! Fishing Poor!!
![]() Join Date: Dec 1999
Location: Olympia,Wa. 98512
Posts: 10,770
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Re: What am I doing wrong?- brake line
We have them in stock. They are $19.95 plus shipping. They are not readily availible at your local hardware store. They have two different sized threads. WES
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On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys Last edited by Classic Heartbeat; 04-25-2008 at 02:58 AM. |
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#17 |
Project Junkie! Fishing Poor!!
![]() Join Date: Dec 1999
Location: Olympia,Wa. 98512
Posts: 10,770
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Re: What am I doing wrong?- brake line
The local parts stores will tell you that they have been discontinued also. I searched for a long time to locate these. WES
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On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys Last edited by Classic Heartbeat; 04-25-2008 at 02:57 AM. |
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#18 |
67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,857
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Re: What am I doing wrong?- brake line
WES- the lines that I bought going to each wheel cylinder are 3/16". The fittings on these lines take a 3/8" wrench.
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Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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#19 |
Project Junkie! Fishing Poor!!
![]() Join Date: Dec 1999
Location: Olympia,Wa. 98512
Posts: 10,770
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Re: What am I doing wrong?- brake line
If you take the lines loose, you will see that the rubber line that goes into the block is larger than the two that go to the wheel cylinders. WES
__________________
On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys |
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#20 |
Senior Member
Join Date: Aug 2005
Location: tulsa OK
Posts: 3,070
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Re: What am I doing wrong?- brake line
i would think a 1/8" NPT female, flared, T-block could be bought at ACE, LOWES, HOME DEPOT, ETC...
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#21 |
67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,857
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Re: What am I doing wrong?- brake line
Does anybody know where to get a new junction block???
__________________
Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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#22 |
67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,857
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Re: What am I doing wrong?- brake line
Thanks for the info WES- I'm going to check the line again but I may be calling you to order one soon.
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Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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#23 |
Project Junkie! Fishing Poor!!
![]() Join Date: Dec 1999
Location: Olympia,Wa. 98512
Posts: 10,770
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Re: What am I doing wrong?- brake line
Sounds good, I have 4 or 5 in stock. WES
__________________
On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys |
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#24 |
Senior Member
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
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Re: What am I doing wrong?- brake line
Jim, you might want to leave that hose and block alone right now. If you try a loosen a 40 year old hose, you might be opening another can of worms. Relax.....we'll get it......I'm free on Saturday....
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1997 GMC Sierra Ext 1965 Mustang |
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#25 |
67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,857
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Re: What am I doing wrong?- brake line
Thanks Steve! I should have had this fixed in 5 minutes but you know how that goes!
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Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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