need help w/ BOV installation

[dr.ian]

Hello, I am installing a BOV on my S4. I have everything on, but I have not hooked up the vacuum lines. I am not sure if I am seeing the correct ones. The only one I see has a valve that goes to the canister and the front of the motor. Is this the correct line? Do I remove the valve completely, or leave it on? I do not see any other lines around the area. Also, the rubber Samco boot is so wide that is is tough to properly fasten the charge cooler perfectly into place at the front. Anyone have the same situation? Thanks!

[kalaydjian]

You have cut samco boot it is to wide I cut mine about 1/2 inch, go to lotusespritworld.com for step by step instructions in installing dump valve it comes with pictures it is a very simple. Alain

[dr.ian]

Am I using the correctlines? What about the value that is there....it is white on one side and black on the other?

[dr.ian]

Well, I cut the boot with a sharp razor, that was easy. However, I am not sure if I have the right lines located. The only ones up there have a black and white valve on it, and LEW procedure did not talk about that being there.

[cnh1990]

That is a one way check valve to the canister and must stay in place.

The T goes in between this check valve and the and the vac port on the head.

Make sure you use the BOV at it's lowest setting and run it for a while before final adjustments.

Also when making adjustments if your BOV has a circlip on the adjustment do not try and attach the hose while this clip is off or press the nipple in because doing so will cause the spring loaded notch adjustment to to internally disengage and if this happens you will have to dis-assemble the BOV to correct this problem.

If this happens and if you do not correct this problem the BOV will not trigger right and you will join many people whos BOV does not work right.

Calvin

[dr.ian]

Thanks, All I have to do now is plug it in. It is funny, that valve had the white side towards the canister, so the air is allowed to flow from the canister to the engine. Shouldn't it flow from the engine to the canister, and block the air from coming out of the canister? Thanks for your help!

[cnh1990]

No, the check valve is part of the closed vapor system of the fuel tanks.

Here is what happens, if fuel ever evaporates in the gas tanks it is sent to the charcoal canister from there the vac from the engine draws it through the check valve and the fumes are then burned in the engine.

At no time should the engine barf up backwards through the charcoal canister.

Calvin