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Jeep Wrangler YJ
YJ General Discussion
Holy Hannah (rear main seal blew)
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<blockquote data-quote="Flyer58" data-source="post: 440652" data-attributes="member: 18629"><p>I have the '92 2.4L engine and I'm not sure about the 4.0L. This can be a common problem with older and new car when excessive pressure builds up in the crankcase and causes seals to leak or fail. On my 2.4L there's a small brass fitting inside the valve cover under on of the small towers and it has a small hole drilled in it. It's not a valve and can become plugged. I wish I had a phot of mine because it was covered over with 1/2inch of sludge. </p><p></p><p>[ATTACH=full]122360[/ATTACH]</p></blockquote><p></p>
[QUOTE="Flyer58, post: 440652, member: 18629"] I have the '92 2.4L engine and I'm not sure about the 4.0L. This can be a common problem with older and new car when excessive pressure builds up in the crankcase and causes seals to leak or fail. On my 2.4L there's a small brass fitting inside the valve cover under on of the small towers and it has a small hole drilled in it. It's not a valve and can become plugged. I wish I had a phot of mine because it was covered over with 1/2inch of sludge. [ATTACH type="full"]122360[/ATTACH] [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Holy Hannah (rear main seal blew)
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