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Unread 01-24-2002, 09:45 AM   #1
Jeep Daddy
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2004 TJ Wrangler 
 
Join Date: Jan 2002
Location: Orange County, CA
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Rear main seal on 258

Does anyone have instructions on how to replace the rear main on an 85 CJ7 with a 258ci engine? T5 trany....

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Unread 01-24-2002, 07:40 PM   #2
hamyscj
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Join Date: Dec 2000
Location: Mount Joy, Pa
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Remove oil pan, remove rear bearing cap, slide old seal out, slide new seal in, clean and oil bearing, install rear bearing cap, torque to 80 ft/lbs, install oil pan, change oil filter, add oil, done. In a nut shell, of course. If you are lucky, the oil pan will come off with out too much beating on it. The right motor mount bracket will have to come off in order to remove the pan. One more tip, trust me on this one, get a one piece oil pan gasket for a 4.0. Either from the dealership(they offer a set, op gskt and rear main) or from aftermarket. Carquest has them or Napa. Stay away from the generic stuff. Go with Victor or Felpro. Trust me, it will work and be much easier to install. Read the instructions that come with the gasket as they will most likley tell you to RTV the small holes shut in the timing cover where the old gasket "tits" went in as the new one piece has no "tits". (It is still a better gasket ) Be ready to get oily up to your armpits unless you have a lift. Later, Hamy.
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Unread 01-24-2002, 09:11 PM   #3
122345Benny
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Join Date: Jan 2002
Location: Ukiah
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Check the P.c.V. valve when I bouth my Cj it had oil all over. The preson who had it had changed the pan gasket three times. I found the pcv pipe pluged tight good lucj
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