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Oil leak from behind flywheel cover

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Old 12-29-2010, 05:40 PM
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I have Alldata. No manual. Done like they say to do it.
Old 12-29-2010, 05:41 PM
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do you have a manual mine reads you can put it on the pan if you use conytact glue so it dont move , did you put in a rear main seal it gos in a certain way
Old 12-29-2010, 05:47 PM
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Originally Posted by freegdr
do you have a manual mine reads you can put it on the pan if you use conytact glue so it dont move , did you put in a rear main seal it gos in a certain way
Thanks for the manual. Will read it over.

Yeah the RMS has some lips on it. We faced the lips towards the front of the engine, like Alldata said.

The RMS never leaked before I took the pan off to replace the oil pump so I'm not convinced it is leaking now.
Old 12-29-2010, 05:49 PM
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did you use a cork gacket this is a felpro one pc silicone
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Old 12-29-2010, 05:50 PM
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Originally Posted by HCCAFan
Thanks for the manual. Will read it over.

Yeah the RMS has some lips on it. We faced the lips towards the front of the engine, like Alldata said.

The RMS never leaked before I took the pan off to replace the oil pump so I'm not convinced it is leaking now.
was that the way the other seal was on
Old 12-29-2010, 05:55 PM
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found thishttp://go.jeep-xj.info/HowtoRearMain.htm
Old 12-29-2010, 06:00 PM
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when i did my main and pan gasket the 1piece fel pro was a pain in the *** around the back of the pan... it leaked everytime. what i did was cut off the back part of the gasket, and use silicone on it... that worked.

the gasket just doesn't sit against the pan very well in the back and the gasket has to sit in the groove or else it will leak very badly....

i had to do it several times
Old 12-29-2010, 06:02 PM
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Originally Posted by spiceman
when i did my main and pan gasket the 1piece fel pro was a pain in the *** around the back of the pan... it leaked everytime. what i did was cut off the back part of the gasket, and use silicone on it... that worked.

the gasket just doesn't sit against the pan very well in the back and the gasket has to sit in the groove or else it will leak very badly....

i had to do it several times
Might be my issue. Was it coming down on the back side of the dust cover? Most the rear main leaks I see come down on the front of the dust cover. My leak is on the back, on the flywheel side, making me think it's something like you are saying.
Old 12-29-2010, 06:03 PM
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Originally Posted by freegdr
did you use a cork gacket this is a felpro one pc silicone
Both the ones I put on were Fel Pro rubber or silicone. Can't remember if it was blue or not.
Old 12-29-2010, 06:03 PM
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first time her no probs ive prob done 30 oil pumps in my life time that prob helps also
Old 12-29-2010, 06:04 PM
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Originally Posted by freegdr
was that the way the other seal was on
I didn't look honestly. But, there is only one way the lower seal can go in and that is with lips towards the front. The top matches that and Alldata.
Old 12-29-2010, 06:05 PM
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Originally Posted by freegdr
Thanks. That is one of two guides I used in addition to Alldata.
Old 12-29-2010, 06:07 PM
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Originally Posted by freegdr
first time her no probs ive prob done 30 oil pumps in my life time that prob helps also
I have dropped several pans and done a hell of a lot more complicated jobs too. Not sure why this is whippin my ***. I would not even GAF if it wasn't getting on my exhaust pipe and making it look like the heap is on fire at stop lights.
Old 12-29-2010, 06:12 PM
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those are the only to areas that low that can be leaking oil 100 percent it not coming from above
Old 12-29-2010, 06:13 PM
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Originally Posted by freegdr
those are the only to areas that low that can be leaking oil 100 percent it not coming from above
Problem is, I can't trace it because it goes up behind that damn dust cover!


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