Brake Drums Turned? - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 10-08-2013, 07:55 PM   #1
Jeeper
 
Join Date: Apr 2013
Location: Connecticut
Posts: 168
Brake Drums Turned?

Hey Everyone,

I recently put new brake shoes and drums on my jeep. After having them on for about 2 weeks, they seem soft. I was sure I had them adjusted correctly. I'm almost fed up to the point I'd rather have the local Jeep dealer look at them. My question is, the drums being brand new, do they need to be turned? Could this be the reason I'm having problems?

__________________
2003 Jeep Wrangler X 4.0L ~ 107,000 miles
apannone is offline   Quote Quick Reply
Old 10-08-2013, 07:59 PM   #2
Jeeper
 
1979WagoneerLTD's Avatar
 
Join Date: Nov 2008
Location: GA
Posts: 377
Quote:
Originally Posted by apannone View Post
Hey Everyone, I recently put new brake shoes and drums on my jeep. After having them on for about 2 weeks, they seem soft. I was sure I had them adjusted correctly. I'm almost fed up to the point I'd rather have the local Jeep dealer look at them. My question is, the drums being brand new, do they need to be turned? Could this be the reason I'm having problems?
Having the drums machined likely would have no affect.

Verify proper adjustment, and assuming that there is no air in the hydraulics, recheck.

__________________
THE MPGp
1979WagoneerLTD is offline   Quote Quick Reply
Old 10-08-2013, 07:59 PM   #3
Jeeper
 
Atthehop's Avatar
 
Join Date: Jul 2008
Location: NW, NJ
Posts: 3,923
You do not need to turn new drums. Since the majority of the braking is done by the front brakes I think the shoes have not burned in completely yet. If the pedal is not low I would drive it around town for a few more weeks and then pull the drums and see if the shoes are making full contact.
__________________
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
Atthehop is online now   Quote Quick Reply
Old 10-08-2013, 08:01 PM   #4
Jeeper
 
Junky_One's Avatar
 
Join Date: Sep 2013
Location: Highwood
Posts: 503
You do mean soft as in not stopping hard? Because new drums have to break in to the shoes and vice versa. But if the pedal is soft that's a whole different story.
__________________
Jeeps never get stuck or broke. Just parked in odd places for an indeterminate length of time.
Junky_One is offline   Quote Quick Reply
Old 10-08-2013, 08:03 PM   #5
Jeeper
 
Join Date: Apr 2013
Location: Connecticut
Posts: 168
Quote:
Originally Posted by Junky_One View Post
You do mean soft as in not stopping hard? Because new drums have to break in to the shoes and vice versa. But if the pedal is soft that's a whole different story.
The pedal isn't soft. It just seems like only the front brakes are working when I'm braking. I do have a decent Ebrake. It catches about half way up when I pull the lever.
__________________
2003 Jeep Wrangler X 4.0L ~ 107,000 miles
apannone is offline   Quote Quick Reply
Old 10-08-2013, 08:04 PM   #6
Jeeper
 
Atthehop's Avatar
 
Join Date: Jul 2008
Location: NW, NJ
Posts: 3,923
Sometimes the arc of the shoes are not exactly matched to the drum and need to wear down a little. I used to oversee a bus maintenance facility and since those vehicles are so big we had to cut the lining we bolted onto the shoe to match the drums or else you did not have full contact and you can only imagine how hard it is to stop a 40 ft bus even empty with air brakes.
__________________
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
Atthehop is online now   Quote Quick Reply
Old 10-08-2013, 08:07 PM   #7
Jeeper
 
Join Date: Apr 2013
Location: Connecticut
Posts: 168
Quote:
Originally Posted by Atthehop View Post
Sometimes the arc of the shoes are not exactly matched to the drum and need to wear down a little. I used to oversee a bus maintenance facility and since those vehicles are so big we had to cut the lining we bolted onto the shoe to match the drums or else you did not have full contact and you can only imagine how hard it is to stop a 40 ft bus even empty with air brakes.
So as I drive the Jeep, the shoes will wear down and more closely match the arc of the drum, thus making better contact and having a larger impact when stopping?
__________________
2003 Jeep Wrangler X 4.0L ~ 107,000 miles
apannone is offline   Quote Quick Reply
Old 10-08-2013, 08:10 PM   #8
Jeeper
 
Atthehop's Avatar
 
Join Date: Jul 2008
Location: NW, NJ
Posts: 3,923
Quote:
Originally Posted by apannone View Post
So as I drive the Jeep, the shoes will wear down and more closely match the arc of the drum, thus making better contact and having a larger impact when stopping?
I believe so. If you pull the drums after a few more weeks you should be able to see if the complete shoe is making contact.
__________________
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
Atthehop is online now   Quote Quick Reply
Old 10-08-2013, 08:16 PM   #9
Jeeper
 
Join Date: Apr 2013
Location: Connecticut
Posts: 168
Ok, great thanks!
__________________
2003 Jeep Wrangler X 4.0L ~ 107,000 miles
apannone is offline   Quote Quick Reply
Old 10-08-2013, 08:22 PM   #10
Jeeper
 
Atthehop's Avatar
 
Join Date: Jul 2008
Location: NW, NJ
Posts: 3,923
In the future when you are replacing brake shoes hold them against the drum, old or new, to see how well they match up before mounting them. If they are off a little but You can sand them down. If they are off a lot return them. Aftermarket parts from different suppliers are not always perfect. OEM parts from the dealer are made specifically for the manufacturer under their specifications and tolerances and usually fit better. Hence the additional costs at the dealer. You do get what you pay for.
__________________
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
Atthehop is online now   Quote Quick Reply
Old 10-08-2013, 08:41 PM   #11
Jeeper
 
ChasUGC's Avatar
 
Join Date: Jul 2013
Posts: 2,543
Images: 2
If your Ebrake is working well, and engaging half way up, I would say the brakes are good. You could also park on a steep hill, put it into neutral, and slowly apply the emergency brake, as you roll backwards, and see how well it stops. This should give you a good indication of the rear brakes. I wouldn't do this in traffic or with a vehicle parked behind you.
ChasUGC is offline   Quote Quick Reply
Old 10-08-2013, 10:38 PM   #12
Jeeper
 
Junky_One's Avatar
 
Join Date: Sep 2013
Location: Highwood
Posts: 503
Quote:
Originally Posted by ChasUGC View Post
If your Ebrake is working well, and engaging half way up, I would say the brakes are good. You could also park on a steep hill, put it into neutral, and slowly apply the emergency brake, as you roll backwards, and see how well it stops. This should give you a good indication of the rear brakes. I wouldn't do this in traffic or with a vehicle parked behind you.
Damn good idea.

I have a 69 Chevy drums all around and it went from easy tire lockup to Herculean strength to get it stopped after all new drums and shoes. I swapped the master and even contemplated getting a booster set up. But within a few thousand miles they started grabbing better, still really stiff 30,000 later and haven't adjusted. I drive lots of highway 60 miles and up daily, takes a lot of stop and go to properly break in in my experience.
__________________
Jeeps never get stuck or broke. Just parked in odd places for an indeterminate length of time.
Junky_One is offline   Quote Quick Reply
Old 10-09-2013, 07:18 AM   #13
Jeeper
 
Atthehop's Avatar
 
Join Date: Jul 2008
Location: NW, NJ
Posts: 3,923
Quote:
Originally Posted by Junky_One View Post
Damn good idea.

I have a 69 Chevy drums all around and it went from easy tire lockup to Herculean strength to get it stopped after all new drums and shoes. I swapped the master and even contemplated getting a booster set up. But within a few thousand miles they started grabbing better, still really stiff 30,000 later and haven't adjusted. I drive lots of highway 60 miles and up daily, takes a lot of stop and go to properly break in in my experience.
Back in the 70's when I worked in a car dealer and before disc brakes we always took a customers car for a good ride to burn in the brakes before giving it back to the customer or else they would probable have an accident the first time they went to stop. In fact we road tested every vehicle we replaced the brakes on.
__________________
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
Atthehop is online now   Quote Quick Reply
Old 10-09-2013, 10:27 AM   #14
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,792
Images: 2
If you end up wanting to have someone else adjust them, take them to a non-chain (not Midas, etc.) brake shop, not the dealer. You'll save $$$ & get the job done more quickly.
__________________
When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Old 10-09-2013, 12:23 PM   #15
Moderator

WF Supporting Member
::WF Moderator::
 
doclouie's Avatar
 
Join Date: Feb 2010
Location: Was in the mountains, now in Texas
Posts: 3,687
Images: 4
Did you remove the oil off the drum with brake parts cleaner before you installed the drums? I have seen this error cause some of the problems you are speaking of. Just wiping off the oil is not enough to get all the oil off.
__________________
2000 Sahara, 3.5" Rubicon Express Lift, 1" spring spacer & 1" Body Lift, 33" or 35" BFG Mud tires, Front & Rear ARB, Rancho 9000 shocks, UCF Ultra High Belly Up

doclouie is offline   Quote Quick Reply
Old 10-09-2013, 05:56 PM   #16
Jeeper
 
Join Date: Apr 2013
Location: Connecticut
Posts: 168
Click image for larger version

Name:	ForumRunner_20131009_175632.jpg
Views:	48
Size:	91.6 KB
ID:	417713

How does this look?
__________________
2003 Jeep Wrangler X 4.0L ~ 107,000 miles
apannone is offline   Quote Quick Reply
Old 10-09-2013, 06:08 PM   #17
Jeeper
 
Atthehop's Avatar
 
Join Date: Jul 2008
Location: NW, NJ
Posts: 3,923
Post a pic of the face of the shoes.
__________________
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
Atthehop is online now   Quote Quick Reply
Old 10-09-2013, 06:56 PM   #18
Jeeper
 
Join Date: Apr 2013
Location: Connecticut
Posts: 168
Quote:
Originally Posted by Atthehop View Post
Post a pic of the face of the shoes.
Too late. I sanded em a little and put it back together. The shoes were somewhat shiny though
__________________
2003 Jeep Wrangler X 4.0L ~ 107,000 miles
apannone is offline   Quote Quick Reply
Old 10-09-2013, 06:57 PM   #19
Jeeper
 
Atthehop's Avatar
 
Join Date: Jul 2008
Location: NW, NJ
Posts: 3,923
Is it better now?
__________________
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
Atthehop is online now   Quote Quick Reply
Old 10-09-2013, 08:38 PM   #20
Jeeper
 
Join Date: Apr 2013
Location: Connecticut
Posts: 168
Somewhat better. I haven't driven it enough yet.
__________________
2003 Jeep Wrangler X 4.0L ~ 107,000 miles
apannone is offline   Quote Quick Reply
Old 10-09-2013, 09:26 PM   #21
Jeeper
 
Atthehop's Avatar
 
Join Date: Jul 2008
Location: NW, NJ
Posts: 3,923
Did you sand the shoes At the same time you sanded the drums?
__________________
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
Atthehop is online now   Quote Quick Reply
Old 10-10-2013, 05:18 AM   #22
Jeeper
 
Join Date: Apr 2013
Location: Connecticut
Posts: 168
Quote:
Originally Posted by Atthehop View Post
Did you sand the shoes At the same time you sanded the drums?
I didn't sand the drum. Just the shoes.

__________________
2003 Jeep Wrangler X 4.0L ~ 107,000 miles
apannone is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may 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 Off
Pingbacks are Off
Refbacks are Off




Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 06:28 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC