oil spraying on motor. - Page 2 - JeepForum.com
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post #16 of 18 Old 05-16-2012, 07:15 PM Thread Starter
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1990 YJ Wrangler 
Join Date: May 2012
Location: dover
Posts: 7
Is swaping the head easy...like just put the new one on or is it more detailed than that.... Also the pcv filter on the back does it need to suck or blow, b/c it blows... Also what would happen if I just ran the pcv breather tube on the side of the engine and had it just drip...

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post #17 of 18 Old 05-16-2012, 10:44 PM
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1995 ZJ 
Join Date: Dec 2010
Location: Norman
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The breather at the back should suck air in with the engine running, the PCV valve in the front should supply enough vacuum into the engine to allow the breather/filter to draw air into the engine. Is the PCV hose connected to a manifold vacuum source? If your engine has excessive blow-by it can overcome the PCV vacuum and blow oil vapor out though. I am still not sure if you have the connections hooked up in the right spots, and PCV hose hooked to manifold vacuum and also if your baffles (inside the valve cover) are either missing and/or possibly clogged.

If need be you could run the hose from breather filter down the engine into a catch can and some people let them puke onto the ground too. Old school engines before PCV systems were implemented used to do it that way from the factory (aka draft tubes).
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post #18 of 18 Old 05-18-2012, 12:53 PM Thread Starter
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1990 YJ Wrangler 
Join Date: May 2012
Location: dover
Posts: 7
Ok so i ran my pcv breather so it spits everything on the ground... Now it wants to stall out in me when i let off the gas, do I just need to adjust my idol or is my engine jacked up.
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