Rear Main Seal (04 WJ Dribble) - JeepForum.com
 
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post #1 of 6 Old 09-12-2020, 04:20 PM Thread Starter
dust906
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Wj Rear Main Seal (04 WJ Dribble)

2004 grand cherokee columbia edition 4.0 6 cyl

so , i am trying to chase this dribble right at the rear of the oil pan.. i've done it a couple times with some sub par anerobic gasket maker aparently 515 is not as good as 518 , i was using primer also. i've been using mopar RMS seals , and mopar oil pan gaskets , with a little rtv .. brand new mopar oil pan. even went and pulled another bearing cap from the junk yard from a motor that wasn't leaking.

can you ask someone of regard , or maybe perhaps you already know.

anaerobic only ? or do you create the ears with RTV ....
i've heard so many damn stories at this point ... some people get away with just using RTV which sounds ridiculous.

to be clear , i've tried a lot of methods, and i had a feeling it was the specific gasket sealer, and my curing time. i put a thin bead around the surface of the bearing cap , and then i dab it onto one side of the RMS ends, i then clean and prime the mating surface , and assemble it.

looking for insight.. im under the impression anaerobic can be torque'd down immediately. i might not be letting it cure long enough.

im honestly at my wits end. so thanks if you actually read this.

i have all the stuff to do it this one last time.. but OEM is draining the pocket and oil is now in the bill stack.

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post #2 of 6 Old 09-12-2020, 07:55 PM
coldspit47
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Quote:
Originally Posted by dust906 View Post
2004 grand cherokee columbia edition 4.0 6 cyl

so , i am trying to chase this dribble right at the rear of the oil pan.. i've done it a couple times with some sub par anerobic gasket maker aparently 515 is not as good as 518 , i was using primer also. i've been using mopar RMS seals , and mopar oil pan gaskets , with a little rtv .. brand new mopar oil pan. even went and pulled another bearing cap from the junk yard from a motor that wasn't leaking.

can you ask someone of regard , or maybe perhaps you already know.

anaerobic only ? or do you create the ears with RTV ....
i've heard so many damn stories at this point ... some people get away with just using RTV which sounds ridiculous.

to be clear , i've tried a lot of methods, and i had a feeling it was the specific gasket sealer, and my curing time. i put a thin bead around the surface of the bearing cap , and then i dab it onto one side of the RMS ends, i then clean and prime the mating surface , and assemble it.

looking for insight.. im under the impression anaerobic can be torque'd down immediately. i might not be letting it cure long enough.

im honestly at my wits end. so thanks if you actually read this.

i have all the stuff to do it this one last time.. but OEM is draining the pocket and oil is now in the bill stack.
I used RTV when I did mine. Just on the ears and corners, not the whole thing. Haven't had any issues so far, though I still have a tiny drip which appears to be the valve cover gasket (again).

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post #3 of 6 Old 09-13-2020, 10:32 AM
WJ04JGC
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I just replaced my RMS, oil pan and pan gasket on my 2004 4.0 using Fel Pro for both. No leaks so far.
After a lot of research,, i found many write ups and videos that were helpful but conflicting at times.

I used Loc Tite 518 only where the ears would be on the bearing cap as recommended by Mopar
I learned that the 518 is anaerobic, used for machined parts and cures in the absence of air so I torqued immediately.

My RMS (BS40183) does not have the ears so I off set the seal about 1/4" from the seams as some have recommend to prevent leaks. I believe this seal is a replacement for the ones with ears but, check it out to be sure it fits yours.

The pan gasket needs RTV at the four corners. I used 90 min Permatex.

Torque on my bearing cap is 80 ft lbs with 12 ft lbs (or 144 in lbs on the pan).

Hope this helps.
Here is some info that I used:


Question in regards to placing lower half of rear main seal into bearing cap | Jeep Wrangler TJ Forum
https://***************.com/threads/...ing-cap.38072/

[Repair] Rear Main Seal Replacement
http://dailydriventj.com/forum/viewtopic.php?t=811
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post #4 of 6 Old 09-13-2020, 10:37 AM
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post #5 of 6 Old 09-16-2020, 09:08 PM
Jdg30
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I am in same situation. I have done my rear main seal 3times in past month using all the best practices and it still leaks. I just donít get it!!
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post #6 of 6 Old 09-17-2020, 12:16 AM
rep-tile
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Loctite 518 for the RMS. It worked for me after regular RTV did not. Make sure to let it cure overnight before you dump any oil in the crankcase. Note also that the lip of the seal has to face a certain way.

Felpro gasket comes with alignment snap-up dowels that make the job a lot easier.
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04 WJ 4.0 - Avital 4103, DB-ALL
91 XJ 4.0 - Avital 4103, Stage-2 aFe intake system, BBK high flow Throttle Body, 703s injectors, Jones Exhaust A3518M-5
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