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11-06-2008 02:24 PM #1
CHR Member
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- Feb 2007
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- springfield
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- 383
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
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11-06-2008 02:30 PM #2
CHR Member
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- Jan 2004
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- Auburn
- Car Year, Make, Model: 1937 chevy truck& 33 fordtruck
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- 3,017
Is your PCV valve working?Keep smiling, it only hurts when you think it does!
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11-06-2008 02:45 PM #3
CHR Member
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- Oct 2005
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- Victoria
- Car Year, Make, Model: 65 gto
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- 255
Do your covers have oil drippers?Confusious say: He who dies with the most toys, Wins
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11-06-2008 03:11 PM #4
CHR Member/Contributor
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- Apr 2005
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- bay city
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- 10,546
if your using a valve cover with no baffles in them you will get thatIrish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip
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11-06-2008 03:40 PM #5
CHR Member
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- Sep 2008
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- monkton
- Car Year, Make, Model: 69 camaro pro street
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- 21
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.
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11-07-2008 11:44 AM #6
CHR Member
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- Aug 2004
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- Portsmouth
- Car Year, Make, Model: 1935 Chevy Master Sport Coupe
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- 98
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.
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11-07-2008 12:11 PM #7
CHR Member/Contributor
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- Apr 2005
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- bay city
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- 10,546
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
Originally Posted by Mikej
Last edited by pat mccarthy; 11-07-2008 at 12:17 PM.
Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip
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11-07-2008 02:46 PM #8
CHR Member
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- Feb 2007
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- springfield
- Posts
- 383
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
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11-07-2008 02:49 PM #9
CHR Member
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- Oct 2005
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- Victoria
- Car Year, Make, Model: 65 gto
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- 255
Drippers.just another name for bafflesConfusious say: He who dies with the most toys, Wins
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11-07-2008 02:50 PM #10
CHR Member
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- Oct 2005
- Location
- Victoria
- Car Year, Make, Model: 65 gto
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- 255
Drippers.just another name for bafflesConfusious say: He who dies with the most toys, Wins
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11-07-2008 02:51 PM #11
CHR Member
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- Oct 2005
- Location
- Victoria
- Car Year, Make, Model: 65 gto
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- 255
Hmm, sorry for the studderingConfusious say: He who dies with the most toys, Wins
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