Ri5e

On the LS valve cover, there is a nipple thing that goes back into the intake pipe. There is ALSO a valve right in the middle, with a hose connected to it that connects to the intake manifold. Both seem to allow positive crank case pressure to go back into the intake manifold.

I am thinking about getting an Oil catch can, but which one do I connect it to? The GSR valve cover, has the same nipple on the left, but it does not have that one that is in the middle.

LS_racer

Look in https://honda-tech.com/zerothread?id=147760 for some description and even pics with the hoses labelled. HTH.

Ri5e

For GSR's, I guess the PCV valve is on the block? Because I don't see the PCV valve on the block on the B20B or B18B. Is it the one on the valve cover? The black rubber thing, with like about 1/2 foot vacuum hose that connects to the intake manifold?

And the nipple on the left side of the engine, does air go into it? Because blow by gases are coming out of it, not much. Its a B20B with 20k miles. When I had the blown B18B, lots of blow by gases.... but from Endyns picture, they show FRESH air going into the Breather nipple, how is that possible when you got Blow by pushing air OUT of that nipple??

LS_racer

If you look between the intake runners on you IM, the PCV valve will be between the first and second runners from the left/passenger side. there's one valve there and then a hose which leads down to the breather chamber where the gases escape the crank case, come up through that valve and then go into the IM, the hose from your air intake pipe bring fresh air into the head I believe. there's only one tube that goes into the valve cover. and that connects to the air intake pipe. At least that's what I've got happening on my LS.
Is that what you're trying to figure out?

Ri5e

I have the 96+ Integra, the valve cover has two things. A breather nipple thing and ALSO a PCV thing in the middle of the valve cover, that connects to the intake manifold.

Westrock2000

On the 96+ its that plastic right angle thing on the valve cover with the hose leading to the intake manifold...can even buy a new one at pepboys for like $3.