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Old 08/01/20, 07:48 AM   #1
Joined: Jul 20
Posts: 1
Caps for Overfilled Vent and EVAP Vent hose fittings on Aux Gas Tank

In my 1969 Bronco, I just installed this auxiliary tank from WildHorses:

The product description says that the Overfill Vent and EVAP Vent hose fittings need to be capped off if they arenít being used. My Ď69 Bronco doesnít have either so I need to cap them off. Any recommendations on where to get caps or how to cap them off?
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Old 08/01/20, 10:23 AM   #2
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I need to fix this some more until it is broke!

Perkasie, PA
Joined: Jun 10
Posts: 3,331
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!

My wife and my Bronco are not friends...
3G, PS, Hydroboost, front discs, 4R70W/NP205/MicroSquirt, forged 5.0 roller w/EDIS/serp/Mustang EFI/MegaSquirt controlling it - all tuned by ME, Hedman headers, Extreme Fab Family cage, H-of-K paint stock body and suspension.
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Old 08/01/20, 02:42 PM   #3
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San Jose, CA
Joined: Nov 03
Posts: 37,486
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.


'71 Wagon, 3.5" WH, F150 disc brakes and steering, 4.11 33x11.50 Thornbirds, Kayline soft top, Hanson bumpers. "Built, not bought"

'68 LUBR, 2.5 + 1 WH, 31x10.50, 4.56, Explorer and 4R70w by EFI Guy, WH disc brakes, Hanson front bumper, Warn winch. "Bought, not built"
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