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Thread: Oil Blowing Out Of Valve Cover Vent
          
   
   

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  1. #1
    rdobbs is offline CHR Member Visit my Photo Gallery
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    Oil Blowing Out Of Valve Cover Vent

     



    Have A Big Block Chev About 600hp, Do Not Drag This Car, But
    When I Really Get Down On It Hard, Oil Blows Back Up Thru
    The Breathers On The Valve Covers....i Was Wandering If There
    Is A Cure For This, Other Than Just Slowing Up. Thanks Rd

  2. #2
    chevy 37's Avatar
    chevy 37 is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 1937 chevy truck& 33 fordtruck
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    Is your PCV valve working?
    Keep smiling, it only hurts when you think it does!

  3. #3
    redrodman48's Avatar
    redrodman48 is offline CHR Member Visit my Photo Gallery
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    Do your covers have oil drippers?
    Confusious say: He who dies with the most toys, Wins

  4. #4
    pat mccarthy's Avatar
    pat mccarthy is offline CHR Member/Contributor Visit my Photo Gallery
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    if your using a valve cover with no baffles in them you will get that

  5. #5
    Bee's69camaro's Avatar
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    I took a small piece of aluminum and bent it to fit under my breathers and drilled a small hole in my valve cover and riveted it in. When you install your breather you can't see the rivet and problem solved.

  6. #6
    Mikej's Avatar
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    To much blow by. Question for the rest of you also. Does the PCV vent at Wide Open Throttle? or with 0-1 in of vaccuum at WOW will it not vent?
    If it's not broke, fix it anyway.

  7. #7
    pat mccarthy's Avatar
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    Quote Originally Posted by Mikej
    To much blow by. Question for the rest of you also. Does the PCV vent at Wide Open Throttle? or with 0-1 in of vaccuum at WOW will it not vent?
    built many bbc and if you do not have any baffles in the covers your going to get oil not to much blow by just a lack of any control of it . less the engine is hurt ? but it a very common with tall valve covers or any covers with no oil control . i do not use a pvc with big power engines if you not pulling a vaccum them the pcv is not going to work
    Last edited by pat mccarthy; 11-07-2008 at 12:17 PM.

  8. #8
    rdobbs is offline CHR Member Visit my Photo Gallery
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    running no vacuum or pcv, don't know what drippers are, suspect no
    baffles in valve covers...good answers, would appreciate any other
    info out there. r dobbs

  9. #9
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    Drippers.just another name for baffles
    Confusious say: He who dies with the most toys, Wins

  10. #10
    redrodman48's Avatar
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    Drippers.just another name for baffles
    Confusious say: He who dies with the most toys, Wins

  11. #11
    redrodman48's Avatar
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    Hmm, sorry for the studdering
    Confusious say: He who dies with the most toys, Wins

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