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Old 02-23-2013, 08:55 PM   #1
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Went ti drain oil and noticed this?

Was starting an oil change and found this! What are thoughts ? I know that probably should not be damp like that and I have not noticed any puddles ..

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I know this is not supposed to be damp.. To what are thoughts

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Old 02-23-2013, 09:03 PM   #2
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Leaky rear main seal. Mines been leaking for about a year. I keep an eye on the oil and will fix it someday.

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Old 02-23-2013, 09:05 PM   #3
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x2. Mines been damp for about 3 yrs now but no drips. Its just like a Harley, it marks its territory.
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Old 02-23-2013, 09:06 PM   #4
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How bad is it to fix ? Or should I just keep an eye on it
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Old 02-23-2013, 09:12 PM   #5
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yeah looks like the rear main.wouldnt worry too much its fairly common on the 4.0's.both my tj and xj seep a little never enough to top off before time to service!'
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Old 02-23-2013, 09:24 PM   #6
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That is a huge weight lifted thanks all
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Old 02-23-2013, 10:30 PM   #7
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Mine is wet too. 2004 with only 40,000 mls.
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Old 02-23-2013, 10:35 PM   #8
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It could just be your value cover weeping a bit. It usually does up running down the back side of the engine.
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Old 02-23-2013, 11:10 PM   #9
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Quote:
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It could just be your value cover weeping a bit. It usually does up running down the back side of the engine.
x2
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Old 02-23-2013, 11:16 PM   #10
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Mine looks just like that and I never have to add any oil or see any drops where I park. 134,000 miles.
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Old 02-23-2013, 11:53 PM   #11
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Yep, seems to be the rear main seal! Mine has been leaking for a couple of years and has progressively gotten worse. Just keep an eye on oil level and any progression of the leak. I'm getting to a point where I may replace mine pretty soon. It isn't a cheap fix; I've only asked one shop for an estimated price and they said about $700. Don't know if that is high or low but I figured it will probably cost somewhere around that price to get it fixed.

By your pictures, you don't have anything to worry about. Mine is much worse! Just keep a check on it!
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Old 02-23-2013, 11:53 PM   #12
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If it doesn't leave a spot, don't worry. Mine isn't a daily driver anymore and can sit for weeks at a time. No spots and it's been damp for the last 5 years.
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Old 02-24-2013, 12:28 AM   #13
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Yeah mine has leaked for a year now. $700.00 sounds way high. Its a two piece seal. I havent changed mine yet because i need to do the clutch and i will do it then but.... from what others have told me... you can just removed the cap and spin tje old one out and the new one in without pulling the engine or trans....
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Old 02-24-2013, 02:49 AM   #14
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I just noticed it started doing it on my 2004 at 92,000.
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Old 02-24-2013, 07:50 AM   #15
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That looks very familiar. My 06 LJ Rubi is has the slightest leak at 74K.

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Old 02-24-2013, 08:34 AM   #16
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Mine leaks....I leave drops...I don't worry about it. I change my oil once maybe twice a year and it never shows any sign of losing oil level.

If you want, hit the area with some degreaser and clean it really well. Then you can get a better feel as to how much is leaking.

Btw, I have heard signs of people fixing the RMS only to find that it leaks again.
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Old 02-24-2013, 08:54 AM   #17
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Thanks again .. I'm only at 48000 and diddnt notice it last oil change .. Just went to drain my oil over night and stumbled across that .. First reaction was $hit that's gonna be expensive .. 2nd reaction was .. Better post this ,maybe it's no big deal
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Old 02-24-2013, 09:30 AM   #18
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It's good to keep an eye on it.


You know the difference between a leak and a flood?

A leak is when you find it, a flood is when it finds you.

Leaks are not the worse thing.
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Old 02-24-2013, 09:35 AM   #19
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Quote:
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Yeah mine has leaked for a year now. $700.00 sounds way high. Its a two piece seal. I havent changed mine yet because i need to do the clutch and i will do it then but.... from what others have told me... you can just removed the cap and spin tje old one out and the new one in without pulling the engine or trans....
I bought mine with a rear main leak and drove it about 2k mile untill it got to bad. "mine is a daily". It is a two piece and with a new valve cover gasket and oil pan gasket, oil change, even bought a nice scraper for the gasket and some other stuff, it came to just over $100.
Pull the oil pan and and it is right there, took about 3 hours to do and I was dealing with a bad back. Thought it would have been harder but, it was real easy..
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Old 02-24-2013, 09:46 AM   #20
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Ya I just watched a video on YouTube .. Looks like something I can do .. I think I'll wait till its warmer in my garage as long as it doesn't get to bad ..
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Old 02-24-2013, 09:56 AM   #21
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Ya I just watched a video on YouTube .. Looks like something I can do .. I think I'll wait till its warmer in my garage as long as it doesn't get to bad ..
Ya, that is what I did. Youtube is a fonderful thing but, I could not wait. Mine was almost scary leaking by that point.
Just keep an eye on it till you have a chance to do it..
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Old 02-24-2013, 01:04 PM   #22
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I have drive a 93 renegade (without all the ugly stock fenders) and had my rear main seeping for about 3 months at 123,000 miles. Then one day it poured its oil out while I was driving making a huge smokey mess. Don't wait on a rear main... If it goes while driving you run the risk of seizing your engine. Learned it the hard way!
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Old 02-24-2013, 01:41 PM   #23
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93 2.5l yj mine same way.I never have to add oil and it does not drip.
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Old 02-24-2013, 02:53 PM   #24
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I think it's comes standard on the TJ. My 97 has same thing. Leaves no drips or puddles. Was told by a mechanic not a big deal.
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Old 02-24-2013, 03:15 PM   #25
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I was told the something by a mechanic And then it decided to be a big issue hahaha but labor cost me 350.00 to have the rear main replaced. I would do it but I don't have time.
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Old 02-24-2013, 05:09 PM   #26
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It's not really going to leave a spot on the ground with a RMS leak.

They leak when you are driving. I don't leave any spots on the ground, well except for my power steering, but the whole oil pan is covered in oil and crud.
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Old 02-24-2013, 05:16 PM   #27
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It's not really going to leave a spot on the ground with a RMS leak.

They leak when you are driving. I don't leave any spots on the ground, well except for my power steering, but the whole oil pan is covered in oil and crud.
I agree with this but, all the oil that drained out on mine while driving left a 5" puddle every time I parked. You should have seen the under side, had oil all the way from the front to the fuel tank. What a mess it was.
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Old 02-24-2013, 08:54 PM   #28
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Yeah mine has leaked for a year now. $700.00 sounds way high. Its a two piece seal. I havent changed mine yet because i need to do the clutch and i will do it then but.... from what others have told me... you can just removed the cap and spin tje old one out and the new one in without pulling the engine or trans....
Yeah I thought that was really high to. That is why I haven't been in a big hurry to get it fixed. That and the fact it isn't terrible yet.

I haven't looked too much into it but if it is a two piece seal then you can do it without pulling everything. If it isn't a two piece, then that is where it is going to cost you. I am def. going to look into it to see what is required before fixing it instead of just taking someone's word and them sticking me on the price!
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Old 02-24-2013, 09:14 PM   #29
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I had mine changed when I 1st bought my 97 and it was 300.00. The only reason I did not do it myself is I bought it (Jeep) and went to pick it up and get it road ready on vacation and my wife was PISSED that I spent the entire week working on it.

Granted I got the good ol' boy price (and they took me in and did the work that day) but 750 is highway robbery.

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