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Unread 07-03-2012, 09:02 PM   #1
4LAFFS
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1976 CJ5 
 
Join Date: Jun 2012
Location: COLLINSVILLE, MS
Posts: 2
Stuck rear main seal

I have been working on my 76 CJ5. I have worked my way down to the RMS. I have tried for countless hours to get the upper part of the RMS out with no luck. It will not budge. I believe it to be the original. I've used every punch and hammer combo out there. All it does is sink into it. Are there any ideas to get it out? I thought about spraying some PB penitrating spray on it to see if it will free it up. I also thought about putting some Black RTV gasket in the punch marks and install the new bottom like normal. Does anyone have any advice? This is the last step and I need to get it done Thursday morning.

Thanks.

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Unread 07-03-2012, 09:09 PM   #2
CJ258
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1974 CJ5 
 
Join Date: Sep 2008
Location: El Centro, CA
Posts: 789
I loosen all the bearing caps and dropped the crank a bit, then tapped the old one out with a wooden dowel.
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Unread 07-03-2012, 09:18 PM   #3
cookingguy
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1979 FSJ Cherokee 
 
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Quote:
Originally Posted by CJ258 View Post
I loosen all the bearing caps and dropped the crank a bit, then tapped the old one out with a wooden dowel.
X2 thats what I had to do on my buddys cj but I had to just about remove the crank allmost all the way out.
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Unread 07-03-2012, 09:20 PM   #4
CJ258
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1974 CJ5 
 
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Yep, I had to drop it quiet a ways. Just easier than fighting it and be sure to torque it to specs when done.
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Unread 07-03-2012, 09:24 PM   #5
4LAFFS
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1976 CJ5 
 
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Location: COLLINSVILLE, MS
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I loosed them up some but I was scared I would mess something up. I'll loosen them up some more and go from there. What are your thoughts on the PB penetrating spray?
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Unread 07-03-2012, 10:20 PM   #6
mooncruiser
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1993 YJ Wrangler 
 
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Quote:
Originally Posted by 4LAFFS View Post
I loosed them up some but I was scared I would mess something up. I'll loosen them up some more and go from there. What are your thoughts on the PB penetrating spray?
PB helps, used it on mine.It's not going to hurt anything. I had to keep hammering, took awhile, on the punch and finally it broke loose-
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cj5 , engine , maintenance , rear main seal
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