User Tag List

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 12-30-2006, 11:02 AM
Papa Rick's Avatar
Board Regular
Thread Starter
Join Date: Sep 2006
Location: North Alabama
Posts: 476
Default Brakes Making A scrubbing Sound when applied?

My brakes have just started making a scrubbing sound when I apply them pretty stern. It only seems to be coming from one, and it will stop if I apply them stern, and then let up and reapply them.

I just had the brakes replaced on Truck and Trailer 3 months ago, and have not had any problems or noise until now.

Any suggestions on what to check for this?
__________________
Be Kind To One Another, REMEMBER: You Reap What You Sow!
Reply With Quote
  #2  
Old 12-30-2006, 04:24 PM
Board Icon
Join Date: Dec 2004
Posts: 12,865
Default

could be a simple thing like sand or gravel in your drum.
Only way to find out is take off your wheel
__________________
Reply With Quote
  #3  
Old 01-02-2007, 06:33 PM
bob h's Avatar
Senior Board Member
Join Date: Oct 2006
Location: Nb
Posts: 794
Default Re: Brakes Making A scrubbing Sound when applied?

Quote:
Originally Posted by Papa Rick
My brakes have just started making a scrubbing sound when I apply them pretty stern. It only seems to be coming from one, and it will stop if I apply them stern, and then let up and reapply them.

I just had the brakes replaced on Truck and Trailer 3 months ago, and have not had any problems or noise until now.

Any suggestions on what to check for this?
first check your brake stroke.

jack it up and check wheel bearing endplay.

check for dust shield to drum contact.

but, you likely will pull the drum, dump out debris, scuff the lining and drum surfaces, then re-assemble to make it go away... maybe even re-line.
__________________
Bob H
Reply With Quote
  #4  
Old 01-06-2007, 01:24 AM
Papa Rick's Avatar
Board Regular
Thread Starter
Join Date: Sep 2006
Location: North Alabama
Posts: 476
Default

Thanks, found the sand and got rid of it. smooth sailing now, or should I say braking now.
__________________
Be Kind To One Another, REMEMBER: You Reap What You Sow!
Reply With Quote
  #5  
Old 01-06-2007, 01:40 AM
Kranky's Avatar
Senior Board Member
Join Date: Jun 2006
Location: Wisconsin
Posts: 1,109
Default Re: Brakes Making A scrubbing Sound when applied?

Quote:
Originally Posted by bob h
Quote:
Originally Posted by Papa Rick
My brakes have just started making a scrubbing sound when I apply them pretty stern. It only seems to be coming from one, and it will stop if I apply them stern, and then let up and reapply them.

I just had the brakes replaced on Truck and Trailer 3 months ago, and have not had any problems or noise until now.

Any suggestions on what to check for this?
first check your brake stroke.

jack it up and check wheel bearing endplay.

check for dust shield to drum contact.

but, you likely will pull the drum, dump out debris, scuff the lining and drum surfaces, then re-assemble to make it go away... maybe even re-line.
Assuming the brake shoe linings are not worn out, I would just remove the dust shields (AKA "backing plates"), then back off the slack adjusters and use an air blow gun to blow out any foreign material that's caught in there.

Sure a lot easier than pulling the hub/drum, replacing the seal etc., just to get the crap out of the brake shoe - drum interface area.

Note: when using compressed air around brakes, always use respiratory protection, as brake dust is hazardous to your health.

After blowing out the dirt, be sure to properly readjust the brakes and re install the dust shields.
__________________
If you can't shift it smoothly, you shouldn't be driving it.
Reply With Quote
  #6  
Old 01-07-2007, 07:54 PM
bob h's Avatar
Senior Board Member
Join Date: Oct 2006
Location: Nb
Posts: 794
Default Re: Brakes Making A scrubbing Sound when applied?

Quote:
Originally Posted by Splitshifter
Quote:
Originally Posted by bob h
Quote:
Originally Posted by Papa Rick
My brakes have just started making a scrubbing sound when I apply them pretty stern. It only seems to be coming from one, and it will stop if I apply them stern, and then let up and reapply them.

I just had the brakes replaced on Truck and Trailer 3 months ago, and have not had any problems or noise until now.

Any suggestions on what to check for this?
first check your brake stroke.

jack it up and check wheel bearing endplay.

check for dust shield to drum contact.

but, you likely will pull the drum, dump out debris, scuff the lining and drum surfaces, then re-assemble to make it go away... maybe even re-line.
Assuming the brake shoe linings are not worn out, I would just remove the dust shields (AKA "backing plates"), then back off the slack adjusters and use an air blow gun to blow out any foreign material that's caught in there.

Sure a lot easier than pulling the hub/drum, replacing the seal etc., just to get the crap out of the brake shoe - drum interface area.

Note: when using compressed air around brakes, always use respiratory protection, as brake dust is hazardous to your health.

After blowing out the dirt, be sure to properly readjust the brakes and re install the dust shields.
obviously, you do not live in the rust belt ;0)

most outboard drums can be removed as quickly as a dust shield anyhow.

... most any service manual will specifically tell you DO NOT use compressed air to remove brake dust, they will usually recommend a damp cloth or brake clean.
__________________
Bob H
Reply With Quote
  #7  
Old 01-07-2007, 09:36 PM
Kranky's Avatar
Senior Board Member
Join Date: Jun 2006
Location: Wisconsin
Posts: 1,109
Default

Quote:
obviously, you do not live in the rust belt ;0)
Yes I do. And if it's rusty drums that are causing the noise, a few normal stops will allow the brake shoes to "sandpaper" the rust off the drums.

Quote:
most outboard drums can be removed as quickly as a dust shield anyhow.
And many trucks & trailers have Dayton wheels.
The original post did not specify.

Quote:
. most any service manual will specifically tell you DO NOT use compressed air to remove brake dust, they will usually recommend a damp cloth or brake clean.
That's why I stated the following:
Note: when using compressed air around brakes, always use respiratory protection, as brake dust is hazardous to your health.

Why do all that extra work when you could do it the easy way and get the same result?
__________________
If you can't shift it smoothly, you shouldn't be driving it.
Reply With Quote
  #8  
Old 01-08-2007, 12:48 PM
bob h's Avatar
Senior Board Member
Join Date: Oct 2006
Location: Nb
Posts: 794
Default

Quote:
Originally Posted by Splitshifter
Quote:
obviously, you do not live in the rust belt ;0)
Yes I do. And if it's rusty drums that are causing the noise, a few normal stops will allow the brake shoes to "sandpaper" the rust off the drums.

Quote:
most outboard drums can be removed as quickly as a dust shield anyhow.
And many trucks & trailers have Dayton wheels.
The original post did not specify.

Quote:
. most any service manual will specifically tell you DO NOT use compressed air to remove brake dust, they will usually recommend a damp cloth or brake clean.
That's why I stated the following:
Note: when using compressed air around brakes, always use respiratory protection, as brake dust is hazardous to your health.

Why do all that extra work when you could do it the easy way and get the same result?
my reference to rust was the fact that around here practically NO dust shields come off without dealing with broken bolts.

in today's world, unless specified otherwise, i assume outboard...

we all know about asbestos, and the fact that when the fibers become airborne, they do not settle to the ground for a long time..., that creates a hazard for other techs in the shop, or your buddy that's helping you, or you (after you've removed the respirator).

IMO
__________________
Bob H
Reply With Quote
Reply






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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT. The time now is 11:55 PM.


User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.