Why would there be oil in my air intake - JeepForum.com

 
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post #1 of 3 Old 04-25-2013, 05:58 PM Thread Starter
offroadnick
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Join Date: Apr 2013
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Why would there be oil in my air intake

I just got a 1991 jeep wrangler renegade i checked the air intake and there was oil on the filter and in the bottom of the box there was also oil coming out of the top of the motor were a tube goes from the ar intake to the top on the valve cover

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post #2 of 3 Old 04-25-2013, 06:26 PM
SeanB95YJ
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1995 YJ Wrangler 
 
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Location: Schenectady
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that's called "blow-by"
it seems to be common with the Jeep motors... and yours doesn't look too bad really.

that said, the only thing I'm aware of to get rid of (or at least minimize) the problem is to clean (or possibly replace) the pcv and the baffles under the valve cover

Sean B. - Schenectady, NY - 95 YJ, 350/700r4/NP241, JB Shorty SYE, 8.8 rear, 2" BDS, 1" homebrew shackles, Daystar 1" BL, TJ flares, 35x12.50 General Grabber AT2 on 15x10 Bart D-Truckers, Polyshield polycarbonate windshield, HD over/under crossover steering
swap/build thread: http://www.jeepforum.com/forum/f22/a...hread-1542284/
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post #3 of 3 Old 04-25-2013, 08:24 PM
4.7stroker
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1988 YJ Wrangler 
 
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I agree clean out the PCV/CCV system including removing the valve cover and cleaning out the baffles.
Ensure that all of the hoses are clear and not cracked/broken.
Beyond that would require having the cylinders honed and install new rings at a minimum, from what I can see that would be overkill.

Dwayne
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