Caps for Overfilled Vent and EVAP Vent hose fittings on Aux Gas Tank

[asulawman]

In my 1969 Bronco, I just installed this auxiliary tank from WildHorses: https://www.wildhorses4x4.com/product/Auxiliary_Poly_Fuel_Tank_66-77_Side_Tank_OE/Bronco_Fuel_Tanks

The product description says that the Overfill Vent and EVAP Vent hose fittings need to be capped off if they aren’t being used. My ‘69 Bronco doesn’t have either so I need to cap them off. Any recommendations on where to get caps or how to cap them off?

 

[pcf_mark]

The problem is any cap you find at a parts store is probably not going to be rated for fuel. You may find some that are PVC and I think that will work. But I would just connect the two with a piece of fuel hose and some clamps. You know it is fuel rated!

 

[DirtDonk]

Hard to connect the two actually. One being 3/4-ish and the other being 1/4-ish in size.
But Mark's concept is the same, and the most often recommended. Fuel rated hose, but with something like a bolt glued or clamped into the open end of the hose.
Looks very slapped together, but I've had such bad luck with the caps that I can't recommend them either.

If you can figure out a way to make the small hose seal into the large hose though, that would look more appropriate and still get the job done nicely.

Paul

 

[pcf_mark]

Maybe you could connect them with a piece of 5/16 brake. Stretch a piece of 1/4" fuel hose over one end and flare the other to make it tight for 3/8" hose. You can bend the line and make it look nice.