Grease in rear break assembly - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep CJ Forum > Grease in rear break assembly

ZONE 4.25" combo lift for TJ available at Rockridge4wJeep Wrangler Bushwacker Flat Fender Flare Sale at BaselinRIGID LED Light Blowout Sale - All Sizes, All Series, all

Reply
Unread 01-29-2013, 11:26 PM   #1
Renegade578
Registered User
1981 CJ7 
 
Join Date: May 2002
Location: Anaheim, CA
Posts: 89
Grease in rear break assembly

I noticed brake fluid leaking on my right rear tire, so I assumed I had a bad wheel cylinder. I removed the drum to take a look and found the entire brake assembly covered in grease. I'm attaching a few pictures. I also found several broken springs. I can't figure out where all this grease came from. I removed all everything to inspect the axle bearing and it looks to be okay. I have 2 theories. One, someone thought the bleeder valve was a grease nipple and pumped the the full of grease. Two, the PO was too lazy to fix the rear brakes so he covered everything with grease since the rear brakes only do about 20% of the braking anyway. Any other ideas?

img_20130129_191932.jpg   img_20130129_191938.jpg   img_20130129_192035.jpg   img_20130129_210620.jpg  
Renegade578 is offline   Reply With Quote Quick reply to this message
Unread 01-30-2013, 12:00 AM   #2
roboto65
Senior Member
 
roboto65's Avatar
1976 CJ5 
 
Join Date: Mar 2012
Location: Conroe, Texas
Posts: 723
Not grease most likely, gonna say you are right and it is brake fluid that has mixed up with the dust and created what looks like grease but is not. The wheel cylinder is probably shot and thats what is causing that.
__________________
They say money can't buy happiness but it can buy Jeep parts...and Jeep parts make me really Happy.
roboto65 is offline   Reply With Quote Quick reply to this message
Unread 01-30-2013, 01:14 AM   #3
82JeepCJ7
Registered User
1982 CJ7 
 
Join Date: Jun 2010
Location: Marysville, WA
Posts: 4,870
Been there, done that. Inner seal was leaking.






(Axle is an AMC 20 rear with a Warn full float kit)
__________________
Beat it to fit, paint it to match!

Wheel, Wrench, Repeat.
82JeepCJ7 is offline   Reply With Quote Quick reply to this message
Unread 01-30-2013, 09:43 AM   #4
Renegade578
Registered User
1981 CJ7 
 
Join Date: May 2002
Location: Anaheim, CA
Posts: 89
Quote:
Originally Posted by 82JeepCJ7
Been there, done that. Inner seal was leaking.

(Axle is an AMC 20 rear with a Warn full float kit)
That is definitely a possibility. It did smell a little like gear oil. I don't think it is just brake fluid mixed with dust. It is thick and really feels like grease, so I could see it being gear oil mixed with dust. So I will have to remove the axle shaft to replace the inner seal right? Is it necessary to replace the axle bearing while I have it out? I don't have access to a press and my budget is limited with a baby on the way
Renegade578 is offline   Reply With Quote Quick reply to this message
Unread 01-30-2013, 11:22 AM   #5
Coiz
Registered User
1979 CJ7 
 
Join Date: Mar 2008
Location: Northern, IL
Posts: 4,169
Your brake shoes are on the wrong sides, they should be swapped front to back. The shoe with the longer friction material should always be toward the rear of the vehicle like in your second "greasy" picture.

Quote:
Originally Posted by 82JeepCJ7 View Post
__________________
Mike
My build thread
1979 CJ7, FI 5.0L Ford, NP435, D300, Full floated D44 Detroit, D30 Detroit EZ Locker.
Coiz is offline   Reply With Quote Quick reply to this message
Unread 01-30-2013, 01:03 PM   #6
82JeepCJ7
Registered User
1982 CJ7 
 
Join Date: Jun 2010
Location: Marysville, WA
Posts: 4,870
Yea, I noticed that as well and corrected it after I took the picture.
__________________
Beat it to fit, paint it to match!

Wheel, Wrench, Repeat.
82JeepCJ7 is offline   Reply With Quote Quick reply to this message
Unread 01-30-2013, 04:34 PM   #7
cj5huntingrig
Registered User
1974 CJ5 
 
Join Date: Jul 2012
Location: Stuart, FL
Posts: 236
Bad seal. Go ahead and check play in your bearings. If they are sloppy, they will just wear out new seals.
__________________
1974 CJ5 all stock except for Rocky Road SOA
Completely for hunting - not for show or rock climbing
cj5huntingrig is offline   Reply With Quote Quick reply to this message
Unread 01-30-2013, 06:02 PM   #8
Bubba Ray
Registered User
1984 CJ7 
 
Join Date: Dec 2005
Location: SC
Posts: 1,662
Gear lube leaking from rear end. Smell it and u will know.
Bubba Ray is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com 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 e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
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






Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.