Fuel Venting problem after AWD Conversion

[chriskan]

[Edit] Looks like he solved the issue, the vent line was kinked.

I did a search and couldn't find this topic, so I decided to post, maybe someone who has done the swap can help.

I recently had someone do the AWD conversion to my spyder. Everything is complete, and it drives just fine. However, there is one problem, when we try to fill up the gas tank at the station, the pump will click, and if we continue to try to fill the tank, a bunch of gas will just shoot out of the filler onto the ground
Seems like the pressure isn't being released - I'm thinking the vent system isn't setup correctly? Any ideas on what this could be? Someone told me that we need to swap the FWD filler neck with a AWD filler neck cause it has backflow prevention built in. But none of these writeups on the net specify the filler neck as a part that needs to be replaced, so I am assuming there has got to be a way to get the FWD fillerneck to work. Is there a special way to setup the hoses/fillerneck?

Thanks!

 

[DiamondStarM]

My friend and I had this problem on his Hyundai so this won't fully help you but hopefully it will give you a place to start. The car did the same thing at the pump as you explain, we found out there is a unit inside the gas tank that was broken related to the pressure relief, they wanted alot for the part at the dealer and it would be a pain in the ass to install so we disconnected the vac lines to it and it filled up fine. The new problem is now he gets crappy mileage so we cut the vac line and put a valve in. Open the valve to fill up and close it to drive. Im sure youd rather fix the probelm instead of putting a band aid, but this may get you going for a while.

 

[ZmanIV]

SDTURBO rules!!!!!!!!!!!!!!!!

 

[gSx_r1der]

SDTURBO rules!!!!!!!!!!!!!!!!

SDDSM rules!!!!!!!!!!!!!!!!!!!!!

 

[Raph]

maybe.. just maybe.. the part inside your fuel filler (its a flap) that Prevents fumes from getting out through the filler (so they go to the evap can) has fallen further down into the fuel filler hose? causing fuel to flow slower into the tank.. why dont you take a saturday morning and undo the filler,and inspect it (compare it to other dsm)

ive seen this problem twice.. its a pita (the first time) to fish that flapper out of there