The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Suspension

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-04-2009, 07:50 PM   #1
70k52wd
Blaze-Air
 
70k52wd's Avatar
 
Join Date: Nov 2008
Location: Virginia
Posts: 1,117
leaking brake lines

I put new disk brake hoses from Carquest on my truck. They keep leaking where they bolt to caliper. I replaced cooper gaskets, and still leak. Anybody else have this problem? They're 73 style. Square blocks.
70k52wd is offline   Reply With Quote
Old 08-04-2009, 08:02 PM   #2
lolife99
67-72 parts collector,…
 
lolife99's Avatar
 
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,700
Re: leaking brake lines

I assume you have 2 copper gaskets per hose/block?
They have to be really tight when they are new gaskets being crushed for the first time.
__________________
Keith

Convert to disc brakes.
http://67-72chevytrucks.com/vboard/s...d.php?t=444823
lolife99 is offline   Reply With Quote
Old 08-04-2009, 08:33 PM   #3
70k52wd
Blaze-Air
 
70k52wd's Avatar
 
Join Date: Nov 2008
Location: Virginia
Posts: 1,117
Re: leaking brake lines

Yea, 2 gaskets ea time. These hoses never fit flat on the caliper to begin with. I had to gently persuade them to a flatter fit. It's just the passenger side.
I have some thicker gaskets, but I don't see that as a resolution. I cranked them hard. I'm always worried about stripping threads.
70k52wd is offline   Reply With Quote
Old 08-04-2009, 09:07 PM   #4
lolife99
67-72 parts collector,…
 
lolife99's Avatar
 
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,700
Re: leaking brake lines

I have the steel line of the rubber hose pointing up. Is that the way you have them?
Any pics?
__________________
Keith

Convert to disc brakes.
http://67-72chevytrucks.com/vboard/s...d.php?t=444823
lolife99 is offline   Reply With Quote
Old 08-04-2009, 10:11 PM   #5
70k52wd
Blaze-Air
 
70k52wd's Avatar
 
Join Date: Nov 2008
Location: Virginia
Posts: 1,117
Re: leaking brake lines

I don't have a close up enough pic. It runs forwards. If I remember, that was the only way it could route. I'll be crawling under it tomorrow. The Dr side is fine.
70k52wd is offline   Reply With Quote
Old 08-04-2009, 10:45 PM   #6
N2TRUX
Happy to be here
 
N2TRUX's Avatar
 
Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,021
Re: leaking brake lines

Are you running dropped spindles? You might have to tweak the line to help in clear the spindle casting.
__________________
Follow me on Facebook and Instagram @N2trux.com

Articles-

"Jake" the 84 to 74 crewcab

"Elwood" the77_Remix

85 GMC Sierra "Scarlett"

"Refining Sierra"
N2TRUX is offline   Reply With Quote
Old 08-04-2009, 10:56 PM   #7
70k52wd
Blaze-Air
 
70k52wd's Avatar
 
Join Date: Nov 2008
Location: Virginia
Posts: 1,117
Re: leaking brake lines

Quote:
Originally Posted by N2TRUX View Post
Are you running dropped spindles? You might have to tweak the line to help in clear the spindle casting.
Yes, I need to do some tweaking. They just never sat flat up from the start. I'll tug and cuss a bit till I get it. Should have gotten Napa hoses.
70k52wd is offline   Reply With Quote
Old 08-05-2009, 08:35 AM   #8
70k52wd
Blaze-Air
 
70k52wd's Avatar
 
Join Date: Nov 2008
Location: Virginia
Posts: 1,117
Re: leaking brake lines

Here is a pic of the driver side hose. Not the best angle, but you can see the routing.

70k52wd is offline   Reply With Quote
Old 08-05-2009, 05:11 PM   #9
lolife99
67-72 parts collector,…
 
lolife99's Avatar
 
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,700
Re: leaking brake lines

Looks fine at the caliper. Does it rub on the spindle/upper ball joint?
__________________
Keith

Convert to disc brakes.
http://67-72chevytrucks.com/vboard/s...d.php?t=444823
lolife99 is offline   Reply With Quote
Old 08-05-2009, 05:26 PM   #10
cparman
sharp as a marble
 
Join Date: Jan 2007
Location: atlantic beach,florida
Posts: 1,082
Re: leaking brake lines

I am with N2TRUX. I might snug the line up, and see where it hits, if it hits the upr bj nut or spindle. Then try and bend the line away from that and see you can then remove the line, and bolt it back up without having to make it fit. In other words have it bolt up in a relaxed way????
cparman is offline   Reply With Quote
Old 08-05-2009, 05:55 PM   #11
70k52wd
Blaze-Air
 
70k52wd's Avatar
 
Join Date: Nov 2008
Location: Virginia
Posts: 1,117
Re: leaking brake lines

I got up there today. Just for kicks I put a wrench on it. It tightened down a bit more. I'll bleed, see what happens. Nothing hits or rubs, but I agree with cparman that it should bolt in a more relaxed way.
70k52wd is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 09:36 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com