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Is this a fire hazard? Will my truck eventually explode?

Discussion in 'Tonneau Covers, Caps and Shells' started by Greg617, Jun 15, 2017.

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Should i keep jerry cans full of gas in a bed with a cap?

  1. Sure

    22.2%
  2. Never

    22.2%
  3. Yes. Keep cap sliding window open.

    55.6%
  1. Jun 15, 2017 at 4:24 PM
    #1
    Greg617

    Greg617 [OP] Well-Known Member

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    20170615_185746.jpg

    I picked up 2 5 gallon Jerry Cans the other day and got around to sanding and painting them today. Once they dried, i wanted to make sure they were functional;l and didn't leak or something so I went out and filled them both with around 4.5 gallon each. They are USMC cans from 1973, so I though there was a chance of them leaking. Well, they don't leak. Now I have them (full) in the bed of my truck strapped to a sidewall. Very secure. They are not going to move while driving or anything. I have the sliding window in the cap open in case there are fumes. Should I be worried about doing this, considering that I have a cap?

    20170615_185738.jpg

    Side note: If i keep this arrangement I will be relocating the grill...just to be safe.
     
  2. Jun 15, 2017 at 4:42 PM
    #2
    Lost In The Woods

    Lost In The Woods 4 out of the 5 voices in my head say go for it!

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    Is this a fire hazard?????? Yes. Will my truck eventually explode?????? Most definitely, but at least you can say you went out in a blaze of glory.
    All kidding aside. I would leave a side window open some, but I think you,ll be fine. It would be better to put them on the outside of the truck, but that's sometimes easier said then done. Keep in mind that I am no expert and hopefully one of the resident fire fighters will chime in. They will pressurize due to heat though. I have a small one gallon can for my saw that I have in my tool box. In the summer time it can be almost round. Might also use some sort of a tie down strap instead of bungee.
     
    JaCado, outlawtacoma and Greg617 [OP] like this.
  3. Jun 15, 2017 at 4:48 PM
    #3
    Clearwater Bill

    Clearwater Bill Sometimes when I close my eyes, I can't see.

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    Billy
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    Bungee bad.

    They WILL move in an 'event'.
     
    DerbyCityTaco and DirtJumper14 like this.
  4. Jun 15, 2017 at 4:52 PM
    #4
    Greg617

    Greg617 [OP] Well-Known Member

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    Very true. I need to get some light duty ratchet straps or something. I'd store them on the outside if that were an option. Someday I hope it will be.
     
  5. Jun 15, 2017 at 4:55 PM
    #5
    Greg617

    Greg617 [OP] Well-Known Member

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    Yeah, everything about this seems unsafe. I'm probably going to pour most of it into my tank tomorrow and keep maybe a gallon in one of them. Ill most likely pick up some straps in the next few days as well. I wish I had a way to store them on the outside of my truck. I just cant see a way to install one of the smitty built holders that is practical. https://www.amazon.com/Smittybilt-2798-Jerry-Gas-Holder/dp/B008CLNYPC/ref=pd_bxgy_468_img_2?

    the bungees are as tight as they possibly can be. They're stretched out to the max.
    _encoding=UTF8&pd_rd_i=B008CLNYPC&pd_rd_r=Y4VK2S5ZKRXHJF115XJF&pd_rd_w=iPMlj&pd_rd_wg=OJTxa&psc=1&refRID=Y4VK2S5ZKRXHJF115XJF
     
  6. Jun 15, 2017 at 5:03 PM
    #6
    Rackness

    Rackness Well-Known Member

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    Working on it.
    Just make sure they are on the opposite side of the bed where the thermite container is.
     
  7. Jun 15, 2017 at 9:09 PM
    #7
    Greg617

    Greg617 [OP] Well-Known Member

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    I tend to keep the thermite in the cab with me :bananadead:
     
  8. Jun 15, 2017 at 9:15 PM
    #8
    jAndyMendo

    jAndyMendo i eat samiches

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  9. Jun 15, 2017 at 9:18 PM
    #9
    JaCado

    JaCado I make bad choices

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    Is there a wateryear to mount rotopax cans to the side of your cap. I know more money, but then at least they are out of the way and secure. The cans can bounce out and break the back cap window in an event or really rough trails. Just my'.02
     
  10. Jun 19, 2017 at 2:20 PM
    #10
    j8food

    j8food Well-Known Member

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    Carpet also creates static electricity, that when mixed with fuel vapor creates explosive results.
     
  11. Jun 22, 2017 at 8:34 AM
    #11
    DerbyCityTaco

    DerbyCityTaco The Air Cargo Guy

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    I'm no fire fighter but I have "had professional experiences" with hazmats. I'll leave it at that. That being said, if you are leaving them in your vehicle on a daily basis just to have them in case you need them, I personally would leave them about half full due to gasoline's chemical properties, containers expanding and contracting as well as minimizing pressure on the sealed lid of the container to prevent a spill. However if you are going out on a day trip, a full can for a day wont be much of a hazard so long as you keep them 'cool' enough and the container is in good repair. Just don't leave a full can in your cap all day every day as the heat will cause the can to fail eventually. It's not the gas that's the problem, its rupturing the can due to the expanding fluid volume. The more air you have in the can, the lower the likelihood of a loss of containment during long term storage.
     
  12. Jun 22, 2017 at 9:56 AM
    #12
    j8food

    j8food Well-Known Member

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    I would disagree about leaving them half full. Fuel vapor is what is explosive, not fluid. I wouldn't just keep gas in there all the time.
     
  13. Jun 22, 2017 at 11:06 AM
    #13
    DerbyCityTaco

    DerbyCityTaco The Air Cargo Guy

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    true, but leaving the air in the container for compression is the reason we leave them half full or less for transport. allows the air to compress without stressing the container.
     
  14. Jun 23, 2017 at 4:40 PM
    #14
    03maurderman

    03maurderman Well-Known Member

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    Great topic...besides the safety factor, there's the gas smell issue....For some reason even if the can doesn't leak you can still smell the gas... Then I wonder, how safe are the cans that are attached to the rear outside the truck in the event of a collision? Great testing for Myth busters...
     
  15. Jun 30, 2017 at 4:15 PM
    #15
    BongoTheOneEyed

    BongoTheOneEyed Well-Known Member

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    Just keep your gas inside your gas tank, then, no moe worries.....
     
    CusterFan likes this.

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