Calgary Jeep Association

4x4 Related Groups => Tech Talk => Topic started by: Becker on August 04, 2005, 04:50:52 PM

Title: Front Brake Dragging
Post by: Becker on August 04, 2005, 04:50:52 PM

Heres a question going out to the group.  

93 Yj, replaced the front pads a couple months ago and all was fine.  

Occasionally the right front brake seems to drag causing one hell of a power loss and some smoke too.  I have had it apart already and couldn't see anything out of the normal.  Just got it home again (limping very slowly)  and its dragging again, it almost seems that sometimes the front caliper doesn't release.  

I will take the wheels off it once again tonight and take a look, have checked for rocks/dirt/mud hanging up in there and still found no aparent reason for it doing this.

Any ideas / suggestions?

Title: Front Brake Dragging
Post by: apex on August 04, 2005, 09:33:06 PM

my un-educated thoughts are...
something is preventing your hydraulic line from sucking the cliper piston back out. O2 might be trapped in the line....so bleed ALL brake lines starting from right rear, LR, Front right, FL. Failing that, check all lines for obstructions especially looking for a pinch or dent in the line. Failing that, replace the promlematic caliper. Failing that, try a professional or any of the ideas listed below.

Title: Front Brake Dragging
Post by: blackrube on August 05, 2005, 02:28:22 PM

sometimes calipers just seize,,,,,change it ,,or rebuild it

 8)

Title: Front Brake Dragging
Post by: Abrasive on August 05, 2005, 02:30:19 PM

Or smash it with a wheel wrench until it stops. That's what I did.


Kris

P.S. [bart]smashy smashy[/bart]

Title: Front Brake Dragging
Post by: 4low on August 05, 2005, 10:46:58 PM

a caliper is about 30 bucks.

the action that "releases" the pads is the square seal in the caliper pulls it back when pressure releases, i've had this dragging problem, you may have allot of mud/rust in the rubber boot b/w the piston and the caliper.

another possibility is the hubs are so worn that the disc's are all cock-eyed in the caliper and always rubbing (another thing that's happened to me)

anyway, Good luck and keep us posted!

Mike

Title: Front Brake Dragging
Post by: jeepsucks on August 06, 2005, 01:48:25 AM

check the hose

Title: Front Brake Dragging
Post by: Becker on August 06, 2005, 08:09:29 AM

Fixed.

Took the whole assembly apart, cleaned everything, bled all the brakes, replaced the front pads, took it for a test run and we're back on the road again.

Thanks for the input.

Title: Front Brake Dragging
Post by: apex on August 06, 2005, 10:49:51 AM

right on! good to hear you are rollin again.