Quote Originally Posted by Pranav View Post
I was black flagged during R4 for excessive fuel dumping.

I've got a number or ideas, but before i get into details of what all I've tried so far, what are all of the 4th gen, metal tank guys doing for fuel venting? Please post up, it would be of great help.
As you know, but neck is bashed open to fit a big mouth can. As far as the vent goes, it's just an open hose routed up and zip tied next to the cap. It never hisses when I take the cap off and doesn't dump on the track. Stinks the hell out of the trailer, but after seeing your asspain it seems like a small price to pay. With a vented cap, it seems to me I ought to be able to simply fit a vacuum switching valve in the vent hose and have it open whenever ignition power is on.