Is New Rear Main Seal Bad Already? - 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 Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Is New Rear Main Seal Bad Already?

Rockridge 4WD IS Taking Zone Offroad Suspension Lift Kits BLACK FRIDAY SPECIALS!! You asked, we deliver!Rough Country Lift Kits and Parts!

Reply
Unread 03-24-2014, 04:00 PM   #1
PHARIS88
Registered User
1996 ZJ 
 
Join Date: Jan 2012
Location: Fairview / Allen, TEXAS
Posts: 501
Is New Rear Main Seal Bad Already?

So I gave a buddy of mine a case of beer and $100 and the parts to fix the rear main seal, for me since I haven't had time to fix it yet.

Is it possible that is got pushed/blown out? I drove it maybe 15 miles and my Jeep farted a HUGE smoke grenade down the highway. It poured oil from the area it was leaking...

Now my question is, is it common for these to be installed and then go bad? What is the issue here??

New "BAD" seal??

__________________
Anybody can be become an American, you have to be BORN TEXAN!

www.youtube.com/pharis88

http://www.jeepforum.com/forum/f22/1...hread-1507279/
PHARIS88 is offline   Reply With Quote Quick reply to this message
Unread 03-24-2014, 04:03 PM   #2
PHARIS88
Registered User
1996 ZJ 
 
Join Date: Jan 2012
Location: Fairview / Allen, TEXAS
Posts: 501
Pictures
photo-1.jpg

photo-2.jpg

photo-3.jpg

download.jpg

__________________
Anybody can be become an American, you have to be BORN TEXAN!

www.youtube.com/pharis88

http://www.jeepforum.com/forum/f22/1...hread-1507279/
PHARIS88 is offline   Reply With Quote Quick reply to this message
Unread 03-24-2014, 04:14 PM   #3
KJK
Registered User
1998 ZJ 
 
Join Date: Jan 2007
Location: Dallas, Texas
Posts: 934
Maybe you should have told your buddy to drink the case of beer AFTER the install.
__________________
5.9 ZJ SCT tuned PCM/ KJK CAI/ Thorley headers with 3" Magnaflow cat and muffler/ Modded kegger/ TransGo shift kit/ Vanco brake kit/ Braided steel brake lines/ Mopar cupholder insert!
KJK is offline   Reply With Quote Quick reply to this message
Unread 03-24-2014, 04:23 PM   #4
90Notch306
Registered User
1998 ZJ 
 
Join Date: Jun 2013
Location: Queen Creek, AZ
Posts: 11
If there is that much oil already then i would say it was a improper installation. However, i did a rear main seal on my 5.2 and it still leaked oil. Recently pulled the transmission and noticed the oil leak was coming from the camshaft plug. Replaced the plug and put some sealant on it and the leak is gone now
90Notch306 is offline   Reply With Quote Quick reply to this message
Unread 03-24-2014, 04:33 PM   #5
PHARIS88
Registered User
1996 ZJ 
 
Join Date: Jan 2012
Location: Fairview / Allen, TEXAS
Posts: 501
Quote:
Originally Posted by KJK View Post
Maybe you should have told your buddy to drink the case of beer AFTER the install.
haha, I didn't pay him or give him the beer until I picked it up, he currently has the jeep again and fixing what he was SUPPOSED TO lol

Quote:
Originally Posted by 90Notch306 View Post
If there is that much oil already then i would say it was a improper installation. However, i did a rear main seal on my 5.2 and it still leaked oil. Recently pulled the transmission and noticed the oil leak was coming from the camshaft plug. Replaced the plug and put some sealant on it and the leak is gone now

Yeah I just bought a brand new tranny, and I'm 99% sure it was an improper installation, I just want to make sure something else isn't wrong with the motor causing the rear main to go bad?
__________________
Anybody can be become an American, you have to be BORN TEXAN!

www.youtube.com/pharis88

http://www.jeepforum.com/forum/f22/1...hread-1507279/
PHARIS88 is offline   Reply With Quote Quick reply to this message
Unread 03-24-2014, 05:16 PM   #6
Candymancan
Registered User
1998 ZJ 
 
Join Date: Aug 2010
Location: Virginia
Posts: 3,840
Quote:
Originally Posted by KJK View Post
Maybe you should have told your buddy to drink the case of beer AFTER the install.


Im sorry but that was hilarious
__________________
2013 6.2 V8 Camaro SS 4k miles
1998 5.9 V8 ZJ 160k miles
1998 4.0 I6 Laredo ZJ 210k miles
Candymancan is offline   Reply With Quote Quick reply to this message
Unread 03-24-2014, 07:10 PM   #7
HighLonesome
Belief In All Things Jeep
 
HighLonesome's Avatar
1995 ZJ 
 
Join Date: Feb 2005
Location: New Mexico
Posts: 5,802
Quote:
Originally Posted by KJK View Post
Maybe you should have told your buddy to drink the case of beer AFTER the install.


There is much that could go wrong. Seal in backwards, seal got nicked, lack of anerobic sealant at critical places...
HighLonesome is offline   Reply With Quote Quick reply to this message
Unread 03-24-2014, 10:15 PM   #8
1998_ZJltd
Registered User
1998 ZJ 
 
Join Date: Dec 2013
Location: stockton, California
Posts: 354
Quote:
Originally Posted by PHARIS88 View Post
haha, I didn't pay him or give him the beer until I picked it up, he currently has the jeep again and fixing what he was SUPPOSED TO lol
he may have primed his pump before starting ....

but like the others have said there are a lot of things that could have gone wrong ...

hopefully he re-torqued the mains back down correctly ....
1998_ZJltd is offline   Reply With Quote Quick reply to this message
Unread 03-24-2014, 10:18 PM   #9
WhiteOut
Web Wheeler
 
WhiteOut's Avatar
1998 ZJ 
 
Join Date: Dec 2007
Posts: 8,175
That's almost like there is half a seal in there lol. Should be no leaks at on a properly installed rear main.
WhiteOut is online now   Reply With Quote Quick reply to this message
Unread 03-25-2014, 05:56 AM   #10
jeepjeepster
Registered User
 
Join Date: Dec 2004
Location: , Ky
Posts: 2,099
Yeah I couldn't imagine a seal putting out that much oil unless something was bad wrong (backwards, nicked BAD). I coated mine in Vaseline when I put it back in and it was pretty hard to push it around the crank without nicking it. At the time, I didn't think about loosening up some other crank bolts to relieve some pressure on the seal. Mine still weeps, but I hardly ever see a drip on the driveway. Before it would drip a few drips every time I parked.
__________________
1994 ZJ-I6 w/213,000 mi
1998 ZJ 5.9 w/64,800 mi Slate Black
2004 KJ w/89,000 mi
jeepjeepster is offline   Reply With Quote Quick reply to this message
Unread 03-25-2014, 09:05 AM   #11
cekmgreen
Registered User
1998 ZJ 
 
Join Date: Oct 2012
Location: waverly, il.
Posts: 161
i had to do mine twice to get it right i tore the first one a little bit...... and yes it leaked lol had to start over been good now for over a year
cekmgreen is offline   Reply With Quote Quick reply to this message
Unread 03-25-2014, 09:36 PM   #12
dusterdude
Registered User
1996 ZJ 
 
Join Date: Jan 2012
Location: hopewell, va
Posts: 2,044
It doesnt take much to booger up a new seal
dusterdude is offline   Reply With Quote Quick reply to this message
Unread 03-28-2014, 05:03 PM   #13
PHARIS88
Registered User
1996 ZJ 
 
Join Date: Jan 2012
Location: Fairview / Allen, TEXAS
Posts: 501
So drove the Jeep 40 miles round trip to work and back.. and no LEAKS! HOWEVER!!! My oil pressure gauge will run at about 40-45psi going down the highway at 65mph... (WHICH I KNOW IS NORMAL). BUT I have been paranoid that something is wrong, b/c before the new tranny, new rear main seal, after the new oil pan gasket, and new oil filter.. my pressure gauge seemed to ALWAYS be at 40 and rarely went above or below it. NOW the gauge will go all the way down to about 18-20... Oil light doesn't come on and I'm not leaking oil (as of right now) lol

I researched the threads about "normal pressure" and some threads say it's normal some say I need a motor ha

Sound normal to you?
__________________
Anybody can be become an American, you have to be BORN TEXAN!

www.youtube.com/pharis88

http://www.jeepforum.com/forum/f22/1...hread-1507279/
PHARIS88 is offline   Reply With Quote Quick reply to this message
Unread 03-28-2014, 05:05 PM   #14
PHARIS88
Registered User
1996 ZJ 
 
Join Date: Jan 2012
Location: Fairview / Allen, TEXAS
Posts: 501
Quote:
Originally Posted by WhiteOut View Post
That's almost like there is half a seal in there lol. Should be no leaks at on a properly installed rear main.
oh and you were pretty much right lol the "new seal" was all kinds of screwed up haha
__________________
Anybody can be become an American, you have to be BORN TEXAN!

www.youtube.com/pharis88

http://www.jeepforum.com/forum/f22/1...hread-1507279/
PHARIS88 is offline   Reply With Quote Quick reply to this message
Unread 03-28-2014, 05:55 PM   #15
jeepjeepster
Registered User
 
Join Date: Dec 2004
Location: , Ky
Posts: 2,099
My 94 holds right at 60-70 at 55-65mph and 20-30 at idle when warm.
__________________
1994 ZJ-I6 w/213,000 mi
1998 ZJ 5.9 w/64,800 mi Slate Black
2004 KJ w/89,000 mi
jeepjeepster 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.