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Gas tank explosion from ESD?

Discussion in 'The Hokey Ass Message Board' started by Cerberus, Nov 2, 2011.

  1. Cerberus
    Joined: May 24, 2010
    Posts: 1,370


    After installing the gas tank yesterday and deciding which Tanksinc accessories to use, I started you need to take measures to prevent Electric Static Disdcharge (ESD)? Don't planes have components at their wing tips in the event of flying thru a thunder storm? What about a car driving through a thunder storm and the filler neck is full of fumes?:eek: Sometimes I get shocked in my house when walking on the wall-to-wall carpet. Wasn't the Hindenburg explosion attributed to a static spark discharge up one of the tethers while it was docked? Thinking about running a wire from the filler neck to the frame just for peace of mind. Am I overthinking this?
  2. porknbeaner
    Joined: Sep 12, 2003
    Posts: 38,757


    Just run a good ground strap from the tank to the chassis. You'll be fine. Thunderstorms are quit rare where you are anyway.
  3. 19Fordy
    Joined: May 17, 2003
    Posts: 5,354


    I think your metal tank is grounded to the frame by the bolts that hold it in place. However, if the filler tube is connected to the tank by a rubber hose, it might be a good idea to run a separate wire as you mentioned. I'm no expert, but I don't think it would hurt.
  4. I've never heard of a gas tank exploding on a car due to ESD. I think you might be worrying too much.
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  5. chaos10meter
    Joined: Feb 21, 2007
    Posts: 2,192

    from PA.

    I always wear one of them alum. foil hats when I pump gas .
  6. toughnut
    Joined: Jul 28, 2009
    Posts: 106

    from Arizona

    This isn't gospel, but I think that the fumes in a gas tank are too rich to be ignited by a spark. It takes more oxygen to get an ignitable mixture.
    If the filler cap is off, this changes.
  7. JohnEvans
    Joined: Apr 13, 2008
    Posts: 4,883

    from Phoenix AZ

    Given your location I would be MUCH more worried about a earthquake ! But if it makes you feel better do it won't hurt.
  8. RAY With
    Joined: Mar 15, 2009
    Posts: 3,132

    RAY With

    Your Jokeing? I hope
  9. I know if you braze a fitting into a tank full of fumes, it will explode - my brother proved that one! :eek:
  10. budd
    Joined: Oct 31, 2006
    Posts: 3,479


  11. Von Rigg Fink
    Joined: Jun 11, 2007
    Posts: 13,431

    Von Rigg Fink
    from Garage

    your probably over thinking this

    I have owned plenty of vehicles that would shock you as you get in or out, never blew one of them up

    been in so many gas stations in my life time , and never saw a car blow up in one yet

    I also live in an area where it gets pretty dam dry at times so static discharge is almost on a daily basis during some months, Im still here to get shocked again , it hasent killed me yet
  12. We used to have to ground planes when we fueled them, maybe you could use your jumper cables and hook your car up to the base of the pump when you are fueling.:D
  13. the lady keep her head pretty good.
  14. Mr48chev
    Joined: Dec 28, 2007
    Posts: 21,477


    That setup shouldn't be any different than your daily driver as far as static electricity causing problems.

    The only static electricity at the gas pump issues I have read about lately is filling gas cans while they are sitting on a plastic bed liner in the back of a pickup and I have never actually seen documentation to back that claim up. Just don't be like my buddy and show up at work with the gas nozzle and hose hanging out of your filler neck on your car. That could cause a problem.
  15. I agree you may be over thinking it, But it wont hurt to put a ground wire on it if it makes you feel better!
  16. propwash
    Joined: Jul 25, 2005
    Posts: 3,858

    from Las Vegas

    you're still required to ground aircraft when refueling. When you ask GC to send a truck to your hangar or tie-down, the driver will hook up the grounding wire (clamp) first, then give you a drink.
  17. roughneck424
    Joined: Jan 10, 2009
    Posts: 1,084


    My best Static electric discharge story was a good one.
    Riverside Casino - Lauglin Nevada. Brand New carpet thru out the casino.
    Was getting shocked on a regular basis.
    The cocktail waitress's there wear REALLY Shiney panti hose with short shorts and tuxedo jacket with tails.
    In the crowd with hussle & bussle one of them girls got to close to the back of my hand a " POW" a spark shot straight to her derrière!!! She jumped so high she spilled her dring tray. She looked at me like I had done it on purpose :)
  18. rlsteel
    Joined: Apr 10, 2005
    Posts: 367


    I had a 5 gal fuel jug (plastic) catch on fire from static el.I was poring gas in my super gas dart when it poped off ( fumes from the vent).the car was setting in the garage and I threw the can straight back and luckly i had a fire extingiser mounted between the 2 garage doors.You can not be to careful with gas.I was lucky I did not lose the car and the house. RLS
  19. Scott
    Joined: Dec 23, 2004
    Posts: 2,599


    nothing wrong with grounding all metal parts , one less thing to go wrong.
    Alot of static comes from getting in and out of the car while refueling
  20. Cerberus
    Joined: May 24, 2010
    Posts: 1,370


    In my search for an airplane remote fuel filler neck for my avatar, I came across this article:

    " The flow of fuel through a hose and nozzle creates static electricity, and a discharge occurs to the filler neck of the airplane - explosion.....So in fiberglass or composite airplanes, it is desirable to ground the metal fuel filler cap ring. A metal nozzle with gasoline has some capacitance. As such, becomes the target for a static electric arc from the fuel hose nozzle.":eek:

    Some cars have anti-squeak insulated fuel tank straps. This may prevent the tank from being grounded.:eek:
  21. RichG
    Joined: Dec 8, 2008
    Posts: 3,913


    Almond Joys have nuts, Mounds don't.
  22. 4950ford
    Joined: Oct 16, 2007
    Posts: 261

    from cushing,ok

    if you're worried about it, you can mount a rubber strap to the frame and let it drag the ground under the car. That will discharge any static electricity, thats what we do to our vehicle in the oil terminal i work in.
  23. Ole don
    Joined: Dec 16, 2005
    Posts: 2,914

    Ole don

    The late model pickups with a plastic bed sides use a heavy gauge wire from the filler to the frame. My car has a wire from the fuel sender to a good ground.
  24. hotrodchevy
    Joined: Jan 20, 2009
    Posts: 127


    most modern vehicles w/polly tanks use a ground wire from filler neck even though filler necks usualy bolted to body via filler pocet though most pockets now plastic ground if you feel safer cant hurt
  25. Mark Hinds
    Joined: Feb 20, 2009
    Posts: 470

    Mark Hinds
    from pomona ca

    You also need to run a ground from the fill spout to the chassis even if there is a rubber hose between the filler spout and the tank, just for safety. and with most fuel you need an exact fuel to air ( oxidizer) mixture before you can have combustion.
  26. 1960impala283
    Joined: Sep 20, 2011
    Posts: 43


    Wow, I am more suprised by her reaction that the fire. Girl did good...

    Yes, use a ground. It's slim odds that you'll ever have a problem, but there is no cost involved to ground it.

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