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4.0L Oil blowing out of dipstick. Need help and queations?

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Old 09-19-2011 | 05:49 PM
  #16  
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Originally Posted by xjforfishing
dry compression test
Dam I did wet
Old 09-19-2011 | 05:50 PM
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the hoses not valve cover rear should hav vacuum at idle front will have no suction unitl you driving
Old 09-19-2011 | 05:58 PM
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Originally Posted by freegdr
the hoses not valve cover rear should hav vacuum at idle front will have no suction unitl you driving
The rear hose has vacuum
Old 09-19-2011 | 06:10 PM
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Originally Posted by freegdr
the back hose relieves crank case pressure at idle the front does it when cruising when does oil blow out
Right and oil blows out when driving not at idle
Old 09-19-2011 | 06:27 PM
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the front hose has no blockage all the way to the factory air box,and clean hole at valve cover
Old 09-19-2011 | 06:33 PM
  #21  
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Originally Posted by freegdr
the front hose has no blockage all the way to the factory air box,and clean hole at valve cover
No blockage and its clean
Old 09-19-2011 | 06:36 PM
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run the ehgine remove front hose and rev it see if theres suction at the hose with finger
Old 09-19-2011 | 06:41 PM
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Originally Posted by freegdr
run the ehgine remove front hose and rev it see if theres suction at the hose with finger
Little suction
Old 09-19-2011 | 06:47 PM
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pretty sure there should be more than a little id check inside air box gotta be some thing blocking
Old 09-19-2011 | 07:00 PM
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Originally Posted by freegdr
pretty sure there should be more than a little id check inside air box gotta be some thing blocking
Its all clear aand air filter is 4 weeks old. The oil leak started last week when the old ccv broke and then replaced it with brand new same one. Then I boughtthe new hose and rear ccv yesterday.
Old 09-19-2011 | 07:05 PM
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the answer gotta be there its not over full with oil right
Old 09-19-2011 | 07:11 PM
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Originally Posted by freegdr
the answer gotta be there its not over full with oil right
The oil level is ok. Between the s and a in safe on the stick
Old 09-19-2011 | 07:29 PM
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Default Dip stick blowing oil out

I'm 65 yr's old and alway's have worked in an aotomotive machine shop or as a mechanic. I build race engine's for the racing Mustang's with around 1800 hp with a turbo or supercharged. Now to answer your question it sound's like you need a ring job and the right way to do it is bore it if the wall's are out of spec and put new pistons and ring's in it. There is not a nightmare, you just have excesive blow by. Do a comp. check, they should be around 150 LBS with no more than 10% variance.

Last edited by racer; 09-19-2011 at 07:41 PM.
Old 09-19-2011 | 07:38 PM
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Compression spec is 120 psi. If this did not start until you replaced the broken valve then i would look there. the front one should not be a valve at all. the rear one should be a valve. Make sure you didnt put a valve in the front one. It should just be a straight through elbow to the airbox
Old 09-19-2011 | 08:42 PM
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This is what I did. Dry push compression check and cyl. 1 2 and 3 110psi others 115 psi looks good to me.


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