RB26: Need a Picture of this ASAP so I can fix it

[ghost_22_47]

I have been running through different possabilitys as to what may be wrong with this thing and have converged on this.

I need a picture of where this Valve cover breather hose is supposed to go. It was welded into the turbo inlet pipe and is creating so much suction it collapes the Blowby hose.



Here is the Blowby hose pic and this blowby hose goes to the blowby valve which is threaded into whats called the balance tube that connects to the AAC and has a hose running to the fuel pressure reg and I believe that because it is creating a negative pressure reversing the flow of air through this system is creating all of my idleing, A/F, and bogging issues



I just need a picture of where this goes normally, I am searching the Nissan Tech Manual right now and I'm hoping it will actually show me but I'm 1/4 of the way through it and nada.
Thanks

[ItzGenX]

Does the entire section of hosing collapse or is it just the intake side? If it is just the intake side, you might need a new hose that can handle the suction. My breather hoses run just like yours, right side in by the mouth of the turbo. It helps produce negative crank case pressure to reduce windage (thinner air is easier for the crank to slice through) and prevents seals and gaskets from seeing too much inside pressure (like vavle cover gasket and other common leak zones).

I haven't yanked mine out of the clip yet, but hope this picture helps.
*edit* Ok, it doesn't look like it wants to post one of my facebook pictures, sorry. My hose routing is the same as yours though.

[julio]

The hose in the first picture should connected to your turbo inlet. The second hose pictured is connected as it should be. It should be seeing vacuum (negative atmospheric pressure). I'm not sure why your hose is collapsing under vacuum, but that shouldn't affect any idling/air-fuel issues as long as the hose in the first picture is connected to your turbo inlet.

That hose in the second picture should either be replaced or a supporting tube could be placed inside of it to prevent that collapse. As you had stated, its only for there to evacuate the crank case of blow-by.

[Darius]

Using rubber heater hose for the PCV system has worked for many people. I'm not sure how your engine is pulling so much vacuum that it is collapsing the hose. Just replace it with some reinforced hose from home depot, or be a baller and replace it with SS braided line and fittings

[SullivanRacing06]

block the pcv valve off, run a tube from both valve covers in to a catch can and then from the catch can into either of the two turbo inlets after the mafs