Joined
Mar 31, 2020
Messages
72
Location
Austria
Hey Guys,
I tried using a thicker viscosity oil but the leak continued. In my country Austria a oil leak is a no go and I won't get my TÜV. Without my TÜV I am not allowed to drive the Jeep.

I have an original service manual from Jeep an it states:

*Remove the transmission inspection cover
*Remove the oil pan
*Remove the rear main bearing cap
and so on...

Now the reinstalling Part and the confusing part:

* install the seal
*Install the bearing cap
*Install the bolts for the bearing cap
*Install the oil pan
*install the flywheel or converter drive plate WTF

The service manual never stated that I should take the flywheel off...

To take the flywheel off isn't it necessary to take out the whole transmission?


Thats kinda defeating the whole easy concept of the two peace rear main seal...


Is that true or is there another way


Best regards Lennart




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There's no need for removing the flywheel or transmission. This is overly simplified, but what does need to come off is:

- bolts holding exhaust to the manifold
- oil pan
- main bearing girdle
- rear main bearing cap
- rear main seal

Installation is the reverse. Just make sure to use the little plastic tool normally included with the RMS. If you don't, you'll damage the new seal installing it!
 
There's no need for removing the flywheel or transmission. This is overly simplified, but what does need to come off is:

- bolts holding exhaust to the manifold
- oil pan
- main bearing girdle
- rear main bearing cap
- rear main seal

Installation is the reverse. Just make sure to use the little plastic tool normally included with the RMS. If you don't, you'll damage the new seal installing it!
Thanks for your reply 😃, that sounds much better. My manual doesn't state that I have to take out the bearing griddle. My Jeep is a 1997 so one of the first, build in 96 but 97 Model.

My manual also states to take the oil pan out i have to lift the engine remove the motor mount... Is that necessary?

Best regards Lennart
 
Thanks for your reply 😃, that sounds much better. My manual doesn't state that I have to take out the bearing griddle. My Jeep is a 1997 so one of the first, build in 96 but 97 Model.

My manual also states to take the oil pan out i have to lift the engine remove the motor mount... Is that necessary?

Best regards Lennart
All the 4.0L engines I've seen have one. You can't remove the bearing cap without removing the main bearing girdle. This isn't mine, but shows what I'm talking about.

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Coat the top piece of the RMS in dish soap so it can slide around the top of the crank otherwise its nearly impossible to work the seal in place and soap worked noticeably better than oil
 
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I fed a length of safety wire into the groove on the top of crank/engine block. I used the safety wire to pull a length of paracord into the groove. I used the paracord like a pipe cleaner, and then removed.

Also, there a good write-up on RMS replacement in the How To section.