HELP! non - emissions fuel tank vent (check valve) - any pics or advice?

[DW SD]

I realized my fuel tank is not vented properly, so vacuum builds up as fuel is sucked out. I need a solution that is safe (rollover protected) and ideally easy to install. Emissions considerations are a secondary issue for me. Having done much searching, I haven't found any photos or details of specific part numbers, which would be very helpful. I also searched PP for a new fuel tank vent, check valve, etc, to no avail. I've also been to mcmaster.com, though their selection is endless and without seeing the specific setup, I suspect it would be an iterative process to find the right solution.

Ideal would be a barbed T that would be inline OR maybe tee'd to the 12mm ID (grey-braided) vent line shown in the picture below.


Other solutions, pictures, suggestions would be much appreciated!! There seem to be a lot of race-specific setups that use AN lines from fuel cells, but my Porsche tank is not outfitted with AN fittings.

Thanks a bunch for the help!

Doug

[MotoSook]

I just bought a good PVC vavle and used FI rubber hoses. I routed the hoses to the fender well and ziptied the check to the chassis. You can get more expensive check valves from Pegasus. Good luck.

[jpnovak]

I used a one-way valve from McMaster car. It cost about $2. It has barbed hose ends and fits in-line with my vapor line going to the rear of the car. this allows for equal pressure but no liquid release.

[DW SD]

Souk -
Great idea! I'll explore.
JP -
Do you have any way to look up the part #?

Thanks for your help!
Doug