This is **** UP!!!
#1
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This is **** UP!!!
OK I did a boost leak test. So the intake pipe is NOT hook up to the intake manifold at all right I have it plug off and I have a plug on the inlet on the turbo thats were I am adding air. I tryed to put 23lbs in thats what I running for boost and there is a leak but whats F**K up is there AIR COMING OUT OF THE VALVE COVER were most people put there oil catch can hose at. Any idea on why this is happening.
Here are some pics
![](http://i259.photobucket.com/albums/hh306/travaille/044-3.jpg)
![](http://i259.photobucket.com/albums/hh306/travaille/042-1.jpg)
![](http://i259.photobucket.com/albums/hh306/travaille/041-1.jpg)
Here are some pics
![](http://i259.photobucket.com/albums/hh306/travaille/044-3.jpg)
![](http://i259.photobucket.com/albums/hh306/travaille/042-1.jpg)
![](http://i259.photobucket.com/albums/hh306/travaille/041-1.jpg)
![](http://i259.photobucket.com/albums/hh306/travaille/039-1.jpg)
Last edited by travail; Jan 15, 2010 at 08:59 PM.
#2
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Possibly the turbo is going bad or not sealed correctly.
Air leaking from turbo compressor to the hotside and following into the exhaust valves. From there its making its way into the cylinders slightly leaking past the pistons and into the crankcase. From the crankcase it will lead up to the valve cover pcv to vent to the atmosphere.
Air leaking from turbo compressor to the hotside and following into the exhaust valves. From there its making its way into the cylinders slightly leaking past the pistons and into the crankcase. From the crankcase it will lead up to the valve cover pcv to vent to the atmosphere.
#5
Evolved Member
There is a hole there - I can see it. ![lol](https://www.evolutionm.net/forums/images/smilies/lol.gif)
If you look at you cam specs you may find the cause of the problem. I'm guessing you have an intake valve open.
![lol](https://www.evolutionm.net/forums/images/smilies/lol.gif)
If you look at you cam specs you may find the cause of the problem. I'm guessing you have an intake valve open.
Last edited by barneyb; Jan 16, 2010 at 07:02 AM.
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#10
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I agree with 240zTT.... Start small dude... Not to challenge your car skills but how many times have you done an air leak test? I haven't personally but I get the basics.
The air is compressed into the turbo, then intercooler, then to the manifold... for the most part... You aren't really testing your engine, that is what compression tests are for. It is the turbo compressor side that you are worried about right? So you have to make sure intake valves are closed. Exhaust valves shouldn't matter I am thinking... So, if your intake valves are open, on a cold engine, the air will leak pass the intake valves through the piston rings (remember cold engine), to the crakcase, then out that hole...
If I am not right please correct me.. and you might wanna cover up that hole with something... lol...
The air is compressed into the turbo, then intercooler, then to the manifold... for the most part... You aren't really testing your engine, that is what compression tests are for. It is the turbo compressor side that you are worried about right? So you have to make sure intake valves are closed. Exhaust valves shouldn't matter I am thinking... So, if your intake valves are open, on a cold engine, the air will leak pass the intake valves through the piston rings (remember cold engine), to the crakcase, then out that hole...
If I am not right please correct me.. and you might wanna cover up that hole with something... lol...
#14
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dude! just try changing your PCV valve. I had the same problem and its fixed now.
To check after you change it, pull it out of the valve cover and let it be hooked up to the hose that connects to the intake mani and then try a boost leak test. It shud be fine!
best of luck!
To check after you change it, pull it out of the valve cover and let it be hooked up to the hose that connects to the intake mani and then try a boost leak test. It shud be fine!
![Thumbs Up](https://www.evolutionm.net/forums/images/smilies/smilie_thumbsup.gif)