How are those of you using mustang tanks venting them?

Using the top of the tank for your trunk floor can turn the inside of your car into a fireball, should you ever get rear ended. I know, it happened to me in a brand new 67 Mustang. It burned to the windshield.

 

Single-point data sets are statistical noise.

 

So my first thought is running price of soft copper tubing inside the fuel filler line to internally vent the fill tube. Do you have any suggestions or ideas for or against this material? I am looking at the soft copper because of the ease of bending it without kinking the copper and the small outside diameter compared to rubber fuel line.

 

https://www.cbsnews.com/news/mustang-a-classic-danger/
The result: the death rate where fire occurred in rear-end Mustang crashes is more than three times higher than for all other cars of the same period.

 

Yeah, and the #1 cause of injury death in the US (2017) is unintentional poisoning*.

How often do you hear of that happening?

*Unless you are 65+, in which case it is unintentional fall.

 

So I guess you are not convinced.

 

Given that the odds of me slipping and falling to my death in my own bathroom are far higher that being injured or killed by a fuel-tank-as-floor issue, I am going to keep driving, and keep bathing, both daily.

 

I hope the odds stay in your favor, all the best, Brian

 

I don't see a problem with it. It won't be under pressure, you'll just need some way to secure it so it isn't just banging around in the fill hose. It doesn't take much of a vent to supply enough air. On my 55 IH farm tractor, I bought a new reproduction gas cap, and unbeknownst to me it came unvented when it should have been vented. Tractor would run a while until it pulled a vacuum in the tank, then starve for fuel. I drilled a 1/16" hole in through the top of the cap, problem solved. This is on a gravity fed system, so your mileage may vary....

 

I am thinking a small cotter pin behind the cap to hold the copper tube in place since I am using a rubber fuel filler line I am not really concerned about the vent tube rattling, but with it being soft copper and a steel cotter pin I may look into securing it to the tank bung the same way. Thank you for your advice. Hobo Jim

 

OK so here’s what I’ve come up with to solve my mustang tank venting issues. I used a piece of 2 1/4” exhaust pipe a furnco from the local hardware store to connect the exhaust pipe to the tank and a flex rubber fill line from NAPA.
I ordered some parts from McMaster Carr here are the part numbers
4513K72 3/8 npt steel pipe fitting
53525K18 3/8 npt brass hose barb
Drill a 7/8 hole thru the exhaust tube attach the inside hose barb to the pipe fitting and slide thru the exhaust tube. Weld the fitting to the tube.( I sill have to weld mine) the attach the outside hose barb run the 3/8 vent tube to your desired location above the filler neck. I also will be attaching a piece of 3/8 hose to the inside hose barb to get the vent down to the top of the tank. One other note: the steel pipe fittings are not taped all the way thru you will have to use a 3/8 npt tap to finish the threads to make this application work. By doing it this way you are able to avoid all drilling, cutting and welding on your existing gas tank. It’s also a pretty inexpensive solution to the tank venting issue. Hobo Jim

 

I would bet the Furnco coupling will not hold up in todays gas. I would keep an eye on it if i was you.

 

Thank you for the advice! I will use a hunk of fuel filler hose instead.

 

Sticking with the original question asked.Here what I did on mine.

 

I just wanted to update my portion of this thread. I went to the gas station this afternoon for my first test. The exhaust pipe vent worked Great! I was able to fill the tank with no back splash. Now onto Crusing season Hobo Jim