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Jeep Wrangler YJ
YJ General Discussion
PCV Set up
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<blockquote data-quote="Gilaguy23" data-source="post: 429125" data-attributes="member: 19498"><p>Like what flyer says, on my 91 that uses no oil, the brass fitting in the front of the VC has a fairly small passage thru it that does get plugged or restricted after time. I use a small drill bit the same OD size and gently clear it out by hand NO drill motor. Also dosent hurt to pull the small plastic line off and make sure its clear as well. A catch can and the like is a defeating the purpose of a pcv system as it will do nothing for venting the crank case. If you have that much blow by then there is other issues like rings. The plastic 90 off the top of the VC can be had from jeep parts suppliers if yours is broken. It will also come with a new rubber gasket.</p></blockquote><p></p>
[QUOTE="Gilaguy23, post: 429125, member: 19498"] Like what flyer says, on my 91 that uses no oil, the brass fitting in the front of the VC has a fairly small passage thru it that does get plugged or restricted after time. I use a small drill bit the same OD size and gently clear it out by hand NO drill motor. Also dosent hurt to pull the small plastic line off and make sure its clear as well. A catch can and the like is a defeating the purpose of a pcv system as it will do nothing for venting the crank case. If you have that much blow by then there is other issues like rings. The plastic 90 off the top of the VC can be had from jeep parts suppliers if yours is broken. It will also come with a new rubber gasket. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
PCV Set up
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