Gen 2 people, need some help figuring this out.

LaserSVT

Dedicated LVC Member
Joined
Jul 19, 2009
Messages
10,901
Reaction score
38
Location
Waco
I have an unusual issue that may be blower related but need to see some stock intakes to know for sure whats up.
The problem I am having is fuel in my EVAP tanks. I just put in new ones but as I was installing them the port that has both lines attached to it to feed the cans was full of fuel, about an ounce. Seeing as how the tank hadn't been filled to the top in a while or the car parked at a weird angle it seems that the supercharger may be blowing back through that vac line when the blowers bypass valve opens and causing it to blow into the tank for a second and pushing the fuel into the vent lines.


So what I need to see is if on the stock intake if the EVAP line runs to the intake hose or if it runs to the plenum. If someone could please look by where their fuel lines come in to the engine bay you will see a 3/8" hard vac line come up that connects to the intake. I need to know where on the intake it hooks.

Either I have to move that line to before the throttle body or I have to find a 3/8" vac line check valve.... which I have not been able to locate yet. :(
 
this line?

DSC01197 (Medium).jpg


DSC01198 (Medium).JPG
 
Yuppers. Thats the one! Thanks mang. Its a line with dang near constant vac on it..... hmmmmm. Yeah, must be when I let off the throttle and there is positive pressure in the plenum. Its pushing air back to the tank instead of pulling and that is causing the tank to push fuel back up into the vent lines for the EVAP cans. Well its a theroy anyway.
Now I have to find a one way valve to fit that.
 
OK, so after hunting I found a pool filter part thats just right. 3/8" to 3/8" barbed fitting. Its called an ozonator..? but should work. What held me from ordering it is all the listings for it show its 2 pounds. No way in hell that little thing should weigh 2 pounds. Should be a two ounces at best...... I also hate paing $6 shipping on a $4 part. :lol:


Thoughts?
http://www1.shopping.com/xPO-ADVANT...-Check-Valve-3-8-B-X-3-8-B-872-0027-Advantage
 

Members online

No members online now.
Back
Top