![]() |
![]() |
#1 |
Proud Father
Join Date: May 2007
Location: Duff, Tn.
Posts: 102
|
![]()
Alright guys i have a '82 GMC 3/4 ton truck and the front right brake caliber keeps hanging up on me. What I mean is It'll keep pressure applied to it when the other brakes are fully released I've bled the system continusely, replaced the caliber twice. Any ideas would sure be appreciated, because I need this truck for yard chores and so on. Thanks in advance JOE
__________________
1969 Chevy C/10 "My dad's, May he rest in peace" ![]() 1988 GMC Suburban 1/2 ton 2wd ![]() 1952 Ford F-600 1989 Toyota P/U "The Beater" ![]() |
![]() |
![]() |
![]() |
#2 |
glamoros piece o' lowlife
Join Date: Mar 2007
Location: Redford, MI
Posts: 1,164
|
Re: Brake Help!!!
it ain't the caliper, it's the hose giving you hard time - with age these tend to swell and collapse internally, thus blocking the passage way for the brake fluid. When pressure is applied it can reach over 1500psi so there's no way that blockage resists it, and that pressure gets to the caliper and yer brake works fine. When you take yer foot of the brake most of that pressure bleeds back to the master cylinder, however due to the blockage some of it remains in the caliper thus hanging yer brake. Replace both front hoses, it's a cheap insurance against fire. Expect to spend around $35-40 if you do it yerself.
__________________
The more I drink, the more I drink, the more I drink... diesel, reg cab, long bed, 4 across the rear, single stack, wooden stakes, and lotsa lights - the Hay Express |
![]() |
![]() |
![]() |
#3 |
Proud Father
Join Date: May 2007
Location: Duff, Tn.
Posts: 102
|
Re: Brake Help!!!
thanks Ivan first i just thought it was the caliber, put a reman. one on and this still happened so I took it back and got a new one still happened. No joke about the fire in 2 weeks I ruined the right side brake pads. I'll do it myself, but how hard is the job? Never replaced lines before. I don't like other people working on my brakes, but on the other hand if I did it would already have been fixed. thanks for the feed back. JOE
__________________
1969 Chevy C/10 "My dad's, May he rest in peace" ![]() 1988 GMC Suburban 1/2 ton 2wd ![]() 1952 Ford F-600 1989 Toyota P/U "The Beater" ![]() |
![]() |
![]() |
![]() |
#4 |
glamoros piece o' lowlife
Join Date: Mar 2007
Location: Redford, MI
Posts: 1,164
|
Re: Brake Help!!!
it's a fairly easy job, but it being an old truck the lines may have rusted to the hoses, so you might need to run new lines. Then there's the whole issue of lines frozen in the proportioning valve... my lines were so bad the cracked when I laid on the brakes to test my hydro-boost setup, I replaced them and bypassed the proportioning valve completely - my front line comes off from the master cylinder, goes down to a T-ee, then splits in two for the two front brakes. The rear line comes from the cylinder, and goes straight back to the rear brakes, however I blew it up long time ago so I haven't really tested it for locking up and stuff. I do have a manual proportioning (for a race car) to install there when I get to it, which may be even tomorrow!
__________________
The more I drink, the more I drink, the more I drink... diesel, reg cab, long bed, 4 across the rear, single stack, wooden stakes, and lotsa lights - the Hay Express |
![]() |
![]() |
![]() |
#5 |
Proud Father
Join Date: May 2007
Location: Duff, Tn.
Posts: 102
|
Re: Brake Help!!!
I'll check it out and see what all I'll have to do. Thanks for the feedback. see ya. JOE
__________________
1969 Chevy C/10 "My dad's, May he rest in peace" ![]() 1988 GMC Suburban 1/2 ton 2wd ![]() 1952 Ford F-600 1989 Toyota P/U "The Beater" ![]() |
![]() |
![]() |
![]() |
#6 |
7000 #'s of american IRON
Join Date: Dec 2004
Location: north tx
Posts: 883
|
Re: Brake Help!!!
yea mine had a collapsed line on the right front.
|
![]() |
![]() |
![]() |
#7 |
Dirteh Kitteh
Join Date: Nov 2006
Location: Mormon country
Posts: 2,484
|
Re: Brake Help!!!
When doing the hoses, it's not always readily apparent that there are C-clips on them. They almost look like a part of the bracket, but they aren't. And trying to separate the lines without removing those clips is almost impossible.
The C-clips are removed by just grabbing them with a pair of pliers and pulling radially away from the axis of the center of the brake line.
__________________
Darrin 1955 Willys CJ-5 all original and the oldest CJ-5 on the road. 2001 Dodge Neon (wife's car) 1995 Jeep Grand Cherokee Limited Edition SOLD 1981 K15 Custom Deluxe 4X4, rusty but trusty wood hauler. SOLD 1993 S-10 4X4 Tahoe SOLD ![]() ![]() RIP ESLL |
![]() |
![]() |
![]() |
#8 |
glamoros piece o' lowlife
Join Date: Mar 2007
Location: Redford, MI
Posts: 1,164
|
Re: Brake Help!!!
these C-clips actually hold the hose in place in the frame, they serve as a back support when you start tightening the big sheetmetal nut on the inside of the frame. Removing the C-clips allows the hose to sink in through the frame, thus making the fitting that holds the line to the hose more accessible.
__________________
The more I drink, the more I drink, the more I drink... diesel, reg cab, long bed, 4 across the rear, single stack, wooden stakes, and lotsa lights - the Hay Express |
![]() |
![]() |
![]() |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|