constantly warping rotors - 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 11-07-2009, 04:59 PM   #1
Jeeper
 
Joe Dirt's Avatar
 
Join Date: Mar 2007
Location: Murrieta, CA
Posts: 1,075
constantly warping rotors

It seems like I can't get a set of rotors to last more than 6 months before they warp and I can feel the pulsing in the break pedal. I've been through 3 new sets in 2 yrs. Does anyone else have this problem? I'm only running 33" tires. I'm thinking about upgrading to drilled rotors to keep them cool. I hate to do it because I just put ceramic pads on it 6 months ago and you're barley worn. Maybe I've got some other issue. I'd really apreciate some input.

__________________
2013 Wrangler 2D, 3.6L, Automatic, 3.73 Gears, Limited slip in the rear, Teraflex 2" lift, 285/75/16 tires, LOD bumper & 8K winch, 2M Ham radio.

People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf- George Orwell
Joe Dirt is offline   Quote Quick Reply
Old 11-07-2009, 05:56 PM   #2
IITYWTMWYBMAB

WF Supporting Member
::WF Administrator::
 
4Jeepn's Avatar
 
Join Date: Apr 2005
Location: Florence, KY
Posts: 10,199
Images: 5
What kind of rotors are they, where did you get them? Are you keeping the same pads each time as well? What shape are the calipers in? Who else drives the jeep?

__________________
79.96.85.00.01.97.00.97.93.97.95.94
CJ.XJ.CJ. TJ. TJ.ZJ. TJ.TJ. ZJ.ZJ.YJ. XJ
4Jeepn is online now   Quote Quick Reply
Old 11-07-2009, 06:11 PM   #3
Jeeper
 
Join Date: Nov 2009
Posts: 27
I've heard a lot of people say ceramic pads will eat rotors, the extra rotating mass of the bigger wheels is putting added strain on them too. I'd put drilled and slotteds on it and try to switch back to a semi-metallic.
PanicPaul is offline   Quote Quick Reply
Old 11-07-2009, 08:16 PM   #4
Jeeper
 
Joe Dirt's Avatar
 
Join Date: Mar 2007
Location: Murrieta, CA
Posts: 1,075
The rotors are from AutoZone and I went with the more expensive ones. I have always done pads at the same time. This time, I upgraded from semi-metalic to ceramic too. This is rediculous. I'm spending a small fortune on brakes. The calipers are stock from 2003. Do you think the calipers are the problem? They look fine with no leaks. I'm the only one who drives the Jeep. It does get a lot of SoCal FWY miles.
__________________
2013 Wrangler 2D, 3.6L, Automatic, 3.73 Gears, Limited slip in the rear, Teraflex 2" lift, 285/75/16 tires, LOD bumper & 8K winch, 2M Ham radio.

People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf- George Orwell
Joe Dirt is offline   Quote Quick Reply
Old 11-07-2009, 08:46 PM   #5
Jeeper
 
ccrane2299's Avatar
 
Join Date: Dec 2008
Location: Alabama
Posts: 115
Check your rear brakes. If they aren't working right it puts extra stress on the fronts. I have had two Chevy trucks that ate rotors. On the second one I started keeping the rears adjusted and no more rotor trouble. The fronts do 70% of the stopping but can't handle much more without overheating.
ccrane2299 is offline   Quote Quick Reply
Old 11-07-2009, 08:55 PM   #6
Jeeper
 
Join Date: Nov 2009
Posts: 27
The ceramics are hurting you, but if they warped before that didn't help. How many miles are on the truck? Calipers aren't too expensive so it may not be a terrible idea on the whole if they've got a lot of miles on them. Are you sure your hoses are good aren't causing the caliper to drag at all? Dragging caliper will overheat your rotors and warp them out.
PanicPaul is offline   Quote Quick Reply
Old 11-07-2009, 09:04 PM   #7
Newb
 
Dustman1's Avatar
 
Join Date: Nov 2009
Location: O-H-I-O
Posts: 11
I would go with Panic Paul.I had the same problem with my rotors over heating and then warping due to bad calipers.
Dustman1 is offline   Quote Quick Reply
Old 11-07-2009, 09:25 PM   #8
Jeeper
 
HyperBuzzin's Avatar
 
Join Date: Nov 2009
Location: Western PA
Posts: 642
You sure you're torquing the wheels lugs to the proper amount?
I've heard many say that improper torque will cause the rotors to warp.
__________________
'04 TJ Unlimited (The Original Unlimited!!)
2.25"BB, 32" M/T's & Super Swampers for off-road
Where we're goin', we don't need no stinkin' roads!!
HyperBuzzin is offline   Quote Quick Reply
Old 11-07-2009, 09:31 PM   #9
Jeeper
 
bpowa's Avatar
 
Join Date: Jul 2007
Posts: 836
Did you machine the new rotors before installing them.. When I had machined many rotors that were new to get it perfect before installation. A lot of times rotors are stacked too heavy on each other during shipping.. causing them to be slightly out of round right out the box.

I barely have anyone complain about even the cheap rotors. I just make sure the pads are decent. The average person cannot tell that the rotors are cheap.. Many of them are just glad their brakes are working properly due to running them metal to metal.lol

Also are you living in a mountainous area?

Another do you use a torque wrench when installing your wheels.. and tightening them in a star pattern.
bpowa is offline   Quote Quick Reply
Old 11-07-2009, 09:39 PM   #10
Jeeper
 
Join Date: Nov 2009
Posts: 27
+1 on the tightening the wheels, are you sure the rotors are warped and your wheels just aren't wobbly? If you aren't getting them tight enough.
PanicPaul is offline   Quote Quick Reply
Old 11-07-2009, 10:06 PM   #11
Jeeper
 
Joe Dirt's Avatar
 
Join Date: Mar 2007
Location: Murrieta, CA
Posts: 1,075
I use a tork wrench in a star pattern and use good parts. Maybe it is the caliper, as that is the only part not getting replaced each time. Are drilled rotors a waste of money?
__________________
2013 Wrangler 2D, 3.6L, Automatic, 3.73 Gears, Limited slip in the rear, Teraflex 2" lift, 285/75/16 tires, LOD bumper & 8K winch, 2M Ham radio.

People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf- George Orwell
Joe Dirt is offline   Quote Quick Reply
Old 11-07-2009, 10:21 PM   #12
Jeeper
 
Join Date: Nov 2009
Posts: 27
On one of my cars the drilled and slotteds from ebay were actually cheaper. They aren't going to hurt and you could use the cooling help. I would put calipers on it, if you still have issues I'd look into hoses.
PanicPaul is offline   Quote Quick Reply
Old 11-07-2009, 11:57 PM   #13
Jeeper
 
Join Date: Jan 2009
Location: no mans land, benton ks
Posts: 611
I would stay away from the drilled rotors. they have a tendency to crack. if i was you i would get the slotted and a set of dimpled rotors.

after trying the new calipers
I plan on upgrading to EBC when its time for brakes on my wrangler
__________________
1977 Cherokee ChiefEdelbrock 1406, 33X12.50, front 1.5 inch shackle lift. AMC 360, th400 Quadra-Trac
2002 wrangler, stock 4.0, auto, 33X12.50 maxis buckshot, AEV Highline Body kit, Ford 9 inch rear end.
Soon to come mods: 4" full traction lift, 4.56 gears, 35X10.50R15 boggers, 35X12.50 cooper st tires, spooled rear end, and much more.
crazyredneck is offline   Quote Quick Reply
Old 11-08-2009, 08:39 AM   #14
Jeeper
 
Join Date: Nov 2009
Posts: 27
Quote:
Originally Posted by crazyredneck View Post
I would stay away from the drilled rotors. they have a tendency to crack. if i was you i would get the slotted and a set of dimpled rotors.

after trying the new calipers
I plan on upgrading to EBC when its time for brakes on my wrangler
Sorry, he's right, I've always put DIMPLED rotors on my car, and just called them drilled, you don't seem to see as many rotors that are drilled all the way through. I have DIMPLED and slotted ebay rotors on my 300D, love them, 1/2 the price of OEM rotors from Mercedespartsdirect. And I did EBC dimpled and slotteds on a friends 5.9L ZJ with Hawk Pads, noticeable difference. The only problem with some ebay rotors is they aren't plated and they rust, and stay rusty looking like instantly, so look for the "zinc plated" rotors.
PanicPaul is offline   Quote Quick Reply
Old 11-08-2009, 11:24 AM   #15
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,745
Images: 2
Slotted/drilled/dimpled rotors don't help braking unless you're track racing and your rotors are red-hot and you're running very old pads that off-gas. All any of those three items do is reduce swept brake surface area and make it harder to stop. Regardless of annecdotal evidence. For us Jeepers, a good quality all-cast rotor with good pads like EBC's Yellowstuff pads will perform wonders.

That you're feeling pulsation could just be brake pad material that has built up on the rotor surface. How you come to a stop can cause pad material to slowly build up on the rotor's surface at evenly spaced intervals. How it does so is exactly how some dirt roads build up "whoop-te-doos" that are regularly spaced bumps. Holding the brakes firmly on at stops when the brakes are hot can add to this problem.

Try going through a brake "break-in" process. Slowly increasingly harder stops, almost to the point of stopping, until you are really hauling the rig down hard and fast but releasing the brake pressure just enough at the end to avoid actually stopping. This may help remove that build-up of brake pad material on your rotors.

Newer all-cast rotors are much harder to warp than the older composite rotors were that came on the first couple years of TJs. Early TJ with their composite rotors did indeed warp pretty easily, I had that problem with my '97 TJ. But since switching to the heavier duty all-cast rotors, that hasn't been a problem. If I do notice pulsation which I get very occasionally, it's been brake pad material build-up on the rotors that I can get rid of by the above procedure.
__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 11-08-2009, 02:02 PM   #16
Jeeper
 
bpowa's Avatar
 
Join Date: Jul 2007
Posts: 836
O BTW did you change the hardware on the calipers?
bpowa is offline   Quote Quick Reply
Old 11-08-2009, 05:04 PM   #17
Jeeper
 
Silverlion's Avatar
 
Join Date: Sep 2009
Location: Hillsboro, Oregon
Posts: 40
Are the rotors blued when you take them off? If they are, your calipers are dragging. I have seen many caliper pistons get hairline fractures and stick"just a little bit" over time, with heat, your rotors will warp and discolor.
__________________
Friendship is like pissing your pants. Everyone can see it, but only you can feel the warmth.
Silverlion is offline   Quote Quick Reply
Old 11-08-2009, 05:18 PM   #18
Jeeper
 
Join Date: Nov 2008
Posts: 878
I warped my stock rotors,replaced them twice within a year,using oem pads,I switched to EBC rotors and Yellow Stuff pads,running strong and it stops alot better that stock,I think I spent $150.....well worth it.It has that big brake feeling even in mud/water

ou812 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
New Rotors Now a wobble? BeachjeepLJ TJ Tech Forum 8 07-10-2009 10:57 PM
1999 TJ, 2/99 Build Date - Composite or Cast rotors? 300six TJ General Discussion Forum 5 11-06-2007 03:29 PM
Wrangler Brake Rotors?? OffRDer TJ Tech Forum 7 07-17-2007 06:22 PM
front rotors 4.0l sahara TJ General Discussion Forum 6 07-02-2007 02:41 PM
Power Slot Brake Rotors, Worth The cost? Sandhara TJ Tech Forum 4 05-29-2006 10:51 PM



Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 01:06 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