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LS6 Oil pressure problem...Confusing me

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Old 06-15-2009, 11:46 PM
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Default LS6 Oil pressure problem...Confusing me

Ok, I just had heads and cam installed on my 01 Z06... Except for the fact it likes to blow the dipstick out of the tube and gets oil freaking everywhere.( this only happens like above 5k rpms. I've got a catch can and had a breather filter installed. But when I installed the breather... it like to smoke out of it when the car gets warmed up. I thought i blew a head gasket... but all the cylinders are the same pressure and there are no signs of coolant or anything in the oil. So I am stumped any suggestions anyone? Anything else I can try or check?
Old 06-15-2009, 11:54 PM
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I thought you had an oil pressure problem?
Old 06-16-2009, 12:49 AM
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Well since the pressure from the oil is blowing out the dipstick, wouldn't that be a oil pressure problem?
Old 06-16-2009, 06:25 AM
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That just means you have excessive crank case pressure, You said you have a catch can and just a regular breather? No PVC system?
Old 06-16-2009, 06:47 AM
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Excessive crancase pressure
Old 06-16-2009, 03:18 PM
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So what can I do about that? Or is there anything? It's becoming a pain to deal with. And I took the breather off because it was smoking oil through it. So, I have no idea what is causing it.
Old 06-16-2009, 03:31 PM
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First make sure all your routing is correct for the catchcan.

If that is OK run a compression test.
Old 06-17-2009, 12:08 AM
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Here is my catch can routing. My TB doesn't have a tube going into it or anything. I have 3 connections and the one on the valve covers is blocked off by a plug. So what kinda set up do i need?
Old 06-17-2009, 03:57 AM
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It appears that you have too much blow by, which begs the question - why wasn't it there before the H/C? First step is to do a leak down test and see where the pressure leak is coming from.
Old 06-17-2009, 08:45 AM
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But when I put the breather on it likes to smoke through the breather when the car gets hot. So that is why i am not rocking the breather anymore.
Old 06-17-2009, 09:43 AM
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I believe your routing is wrong.
Valley cover line to catch can (top)> catch can to PCV valve > PCV valve to intake. (red lines)
Valve cover nipple to fresh air inlet (either TB or Bellow or tapped into mouth of TB area (custom see green dotted line))

See schematic attached:


Last edited by PREDATOR-Z; 06-17-2009 at 10:29 AM.
Old 06-17-2009, 10:09 AM
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https://ls1tech.com/forums/generatio...outing-ok.html




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