Oil Blow Back into my Turbo..........

[[ricer]]

ok cool we got it all sorted luke...

but why is a breather bad for the motor?

Cool but beeza was told its bad for your motor...

[Lukezen27]

ok cool we got it all sorted luke...

but why is a breather bad for the motor?

What's what I asked lol

I don't know ether

[beeza]

Maybe since it worked on being vacumned out of the head,if that's not happening then I guess it's not doing what it was designed to do.You are modifying a stock set-up...
When I had the breather filter there it went black from the oil but it worked fine when I blew into it.On a turbo there would be more oil because of more pressure so it would probably clog up quickly.
That's all my thoughts

PM 'Transzex' on d-series Luke he will tell you.He is very helpful!
I would but I'm banned...

[Lukezen27]

Maybe since it worked on being vacumned out of the head,if that's not happening then I guess it's not doing what it was designed to do.You are modifying a stock set-up...
When I had the breather filter there it went black from the oil but it worked fine when I blew into it.On a turbo there would be more oil because of more pressure so it would probably clog up quickly.
That's all my thoughts

PM 'Transzex' on d-series Luke he will tell you.He is very helpful!
I would but I'm banned...

lol How did you get banned?

[beeza]

Here's the thread:
Iraq why?

I was very direct and blunt at times.I can word things much better now

[Lukezen27]

Here's the thread:
Iraq why?

I was very direct and blunt at times.I can word things much better now

lol GO SON...

[beeza]

Haha,Thanks Luke!

[JasonGilholme]

From my understanding, the PCV is a 1 way valve.

this is my current understanding as well.

In that link that was posted it says that its not a good idea to run a boosted setup with just a breather on the valve cover. I think otherwise however.

can someone explain to me why its a bad idea to run the stock PCV setup with just a breather on the valve cover? I dont see anything bad about it because its the stock design, and you've stopped any pressured air getting into the crank case.

EDIT: both the reccommended designs in that thread tell you to remove the PCV valve and remove the vacume hose from the system. so essentially you've removed any directional flow from the system so youj're not going to suck air out or push air in. its just going to be forced around by the momentum of the crankshaft and rotating assembly.

[beeza]

Wow! so do U just plug up the PCV valve and put a breather valve on the valve cover?

[JasonGilholme]

at the moment i'm NA and just have a breather on the valve cover and the rest of the system is stock.

But when i go turbo i want to do it right.

if the pcv valve is truely only a one way valve (only sucking the contents of the crankcase out when vacuum is present) then there shouldn't be a problem running the stock setup with a breather on the valve cover. Cause boost pressure from the manifold is not going to pass the one way valve (pcv valve) and go into the crank case. (aka travelling the wrong direction through the system).

This is all assuming that it is a one way valve of course.

[DLO01]

It is a one way valve. At least on the B's it is, cause I have one sitting in my tool box. Yes, theoretically it will work under boost as you said Jase. But I don't trust the valve for total seal and sticking open. I have removed mine and have both ends running to a catch can with a filter on top.

[bennjamin]

Guys ffs its a one way valve. On most if not all early 90's cars.

Read here

http://en.wikipedia.org/wiki/PCV_valve

View this image - it is the vacuum route for the PCV system on all recent honda engines



If you follow the route from the intake arm , you will see that the "charge" travels into the head , circulates down past the pistons and thru the back of the block past the oil seperator ( OEM catch can). This then blows back up past the PCV ( positive crankcase valve) and then into the inlet manifold.