Rear pinion seal keeps leaking - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 03-22-2012, 10:45 PM   #1
Newb
 
Schaeffer's Avatar
 
Join Date: Jun 2011
Location: Naples, Fl
Posts: 14
Rear pinion seal keeps leaking

I am experiencing a problem that I cannot solve and no one Ive talked to knows the answer. In my rear axle, I have replaced all gears including spider and side gears. I replaced the front seal and yoke. My problem is that the seal keeps blowing out. I have made sure the vent tube is not clogged. We even put a different drive shaft on. Why does the pinion seal keep going out? Would a SYE stop it? And if I get a SYE then would I also need a different drive shaft?

__________________
My Jeep is my "Mr. Potato Head"
Schaeffer is offline   Quote Quick Reply
Old 03-23-2012, 01:20 AM   #2
Jeeper
 
oIIIIIIo's Avatar
 
Join Date: Sep 2010
Location: Bay Area, CA
Posts: 680
Any pictures of the leak? Most of us like visual.

__________________
2000 TJ, I6, Auto
oIIIIIIo is offline   Quote Quick Reply
Old 03-23-2012, 08:49 AM   #3
Jeeper
 
Join Date: Mar 2010
Location: Central Florida--Used to be Central IL
Posts: 200
What rear axle? I haven't had trouble with a 35, but another crush-sleeve rear on a car I had leaked until I took the time to tear it apart and set up with a new sleeve after replacing just the seal a few times and having it leak shortly thereafter.

Other than too much pressure/fluid from a clogged vent or otherwise, or damage to the housing where the seal fits, I don't really know what would cause that on a 44, but I don't know them as well since I haven't broken them as much :-)
QADaemon is offline   Quote Quick Reply
Old 03-23-2012, 09:25 AM   #4
Jeeper
 
Melissas6570's Avatar
 
Join Date: Jun 2010
Location: Huntsville, AL
Posts: 284
How much lift do you have? Do you have any vib's? If so that is a known cause of seal failure.

Good luck,

Mel
Melissas6570 is offline   Quote Quick Reply
Old 03-23-2012, 09:56 AM   #5
Jeeper
 
Join Date: Dec 2010
Location: Spotsylvania, VA
Posts: 74
Is it actually pushing the seal out or is it weeping? I had a 67 Dodge Monoco that had a weeping pinion seal, replaced it 2 or 3 times and it always leaked, told a friend of mine about the issue and we pulled the rear pumpkin out. Found two issues, there was a very small groove cut in the output shaft right where the seal made contact and the preload was not set correctly in the rear. Replaced the ring and pinion, had my buddy set it up, it never leaked again.
kwn306 is offline   Quote Quick Reply
Old 03-23-2012, 10:36 AM   #6
Jeeper
 
scot68's Avatar
 
Join Date: Apr 2011
Location: Mesa, AZ
Posts: 470
Quote:
Originally Posted by Schaeffer View Post
I am experiencing a problem that I cannot solve and no one Ive talked to knows the answer. In my rear axle, I have replaced all gears including spider and side gears. I replaced the front seal and yoke. My problem is that the seal keeps blowing out. I have made sure the vent tube is not clogged. We even put a different drive shaft on. Why does the pinion seal keep going out? Would a SYE stop it? And if I get a SYE then would I also need a different drive shaft?
When you installed the last pinion seal did you closely inspect the yoke for a seal cut? Get another seal and pull it apart again, look closely at the machined surface of the yoke where the seal makes contact. If there is even a small groove it can leak and you would need to replace the yoke. Also I always place a small amount of RTV on the OD of the seal where it contacts the housing. No an SYE kit will not fix your problem unless you had a leak at the output shaft of the T/case. Yes you would need a new Double Cardan style d/shaft if you did install an SYE.

Click image for larger version

Name:	dana-35-pinion-yoke.jpg
Views:	108
Size:	118.7 KB
ID:	107387
scot68 is offline   Quote Quick Reply
Old 03-23-2012, 10:45 AM   #7
Sponsoring Vendor
 
Ibuildembig's Avatar
 
Join Date: Aug 2010
Location: Fruitland, Missouri
Posts: 8,458
Surely if there is a groove they make a speedy sleave for it
Ibuildembig is offline   Quote Quick Reply
Old 03-23-2012, 11:05 AM   #8
Jeeper
 
scot68's Avatar
 
Join Date: Apr 2011
Location: Mesa, AZ
Posts: 470
Quote:
Originally Posted by Ibuildembig View Post
Surely if there is a groove they make a speedy sleave for it
Your probably right but a new yoke is only about $40 bucks..
scot68 is offline   Quote Quick Reply
Old 03-23-2012, 11:11 AM   #9
Sponsoring Vendor
 
Ibuildembig's Avatar
 
Join Date: Aug 2010
Location: Fruitland, Missouri
Posts: 8,458
wow guess I am using to buying big stuff....40 bucks won't by crap in a 1 ton axle
Ibuildembig is offline   Quote Quick Reply
Old 03-23-2012, 12:03 PM   #10
Jeeper
 
Bone's Avatar
 
Join Date: Mar 2011
Location: Crestview, FL
Posts: 325
I've had a rear pinion seal leak and a RMS leak for a little while now. Neither one of them are very significant (no drip marks on the garage floor) so I have time before I fork out the $600 to $700 to fix it.
__________________
The Air Force FINALLY sent me back home to Florida. Ahhhh, Emerald Coast sugar sand.
Bone is offline   Quote Quick Reply
Old 03-23-2012, 12:26 PM   #11
Jeeper
 
scot68's Avatar
 
Join Date: Apr 2011
Location: Mesa, AZ
Posts: 470
Quote:
Originally Posted by Bone View Post
I've had a rear pinion seal leak and a RMS leak for a little while now. Neither one of them are very significant (no drip marks on the garage floor) so I have time before I fork out the $600 to $700 to fix it.
Why not do the repairs yourself and save about $500 - $600 bucks??
scot68 is offline   Quote Quick Reply
Old 03-23-2012, 12:37 PM   #12
Jeeper
 
TOKKIE's Avatar
 
Join Date: Mar 2010
Location: Sonora, CA.
Posts: 414
What was replaced when you replaced the ring and pinion? Did you replace the crush sleeve and did you check rolling torque? Possible play in the pinion bearing if the yoke checks out ok.
TOKKIE is offline   Quote Quick Reply
Old 03-23-2012, 06:30 PM   #13
Newb
 
Schaeffer's Avatar
 
Join Date: Jun 2011
Location: Naples, Fl
Posts: 14
I've already checked all that has been stated. That is what doesn't make sense. Totally lost.
__________________
My Jeep is my "Mr. Potato Head"
Schaeffer is offline   Quote Quick Reply
Old 03-23-2012, 06:49 PM   #14
Jeeper

WF Supporting Member
 
Mortalis5509's Avatar
 
Join Date: Jul 2010
Location: Winder, GA
Posts: 1,728
Send a message via AIM to Mortalis5509
Replaces it but use permatex blue to help seal it.
__________________
Go DAWGS!!

YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE DUCT TAPE.

IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.
Mortalis5509 is offline   Quote Quick Reply
Old 03-24-2012, 03:13 AM   #15
Newb
 
Schaeffer's Avatar
 
Join Date: Jun 2011
Location: Naples, Fl
Posts: 14
To anyone wondering, the parts house put the wrong yoke in the box. Correct part number, wrong size yoke. Now that's some BS. I figured it would end up being some dumb crap.
__________________
My Jeep is my "Mr. Potato Head"
Schaeffer is offline   Quote Quick Reply
Old 03-24-2012, 10:37 AM   #16
Jeeper
 
KrzyMoke's Avatar
 
Join Date: Nov 2011
Location: La Marque, TX
Posts: 464
Quote:
Originally Posted by Schaeffer View Post
To anyone wondering, the parts house put the wrong yoke in the box. Correct part number, wrong size yoke. Now that's some BS. I figured it would end up being some dumb crap.
Give em a Fresh One
__________________
Kimo

2003 Jeep Wrangler Rubicon


Remember to Tread Lightly
KrzyMoke is offline   Quote Quick Reply
Old 03-26-2012, 01:51 PM   #17
Jeeper
 
Bone's Avatar
 
Join Date: Mar 2011
Location: Crestview, FL
Posts: 325
Quote:
Originally Posted by scot68 View Post
Why not do the repairs yourself and save about $500 - $600 bucks??
Being in the military and living in base housing we have some absurd rules. One of which being no automotive repair work. On top of that, our DYI type Auto Hobby shop on the base is closing in a couple of weeks. As soon as I dropped my skid plate I'd have some 4' tall 4' wide housing patrol she devil drive by house and get her chin whiskers in a twist.
__________________
The Air Force FINALLY sent me back home to Florida. Ahhhh, Emerald Coast sugar sand.
Bone is offline   Quote Quick Reply
Old 03-26-2012, 03:52 PM   #18
Jeeper
 
scot68's Avatar
 
Join Date: Apr 2011
Location: Mesa, AZ
Posts: 470
Quote:
Originally Posted by Bone View Post
Being in the military and living in base housing we have some absurd rules. One of which being no automotive repair work. On top of that, our DYI type Auto Hobby shop on the base is closing in a couple of weeks. As soon as I dropped my skid plate I'd have some 4' tall 4' wide housing patrol she devil drive by house and get her chin whiskers in a twist.
Dam that sucks... How nice, they implement and enforce a rule that states "No auto repair except at the designated DYI shop on base". "Oh by the way we are closing the designated DYI shop however you still can't repair your own vehicle on base".

scot68 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
WTB: TJ rear bumper end pieces with bolts RBlatt Classifieds Archive 4 03-23-2012 12:17 PM
Removing rear bumper silver cap?? Wrangler_Man11 JK General Discussion Forum 14 03-23-2012 08:49 AM
Rear Brakes bad? stretch05 YJ Tech Forum 12 03-23-2012 08:41 AM
AC Compressor is Leaking TwinThumbs TJ General Discussion Forum 1 03-22-2012 11:35 PM



Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 05:42 AM.



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