gasoline gas?!

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
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frankrede
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Mon Feb 19, 2007 4:29 pm

well gasoline doesn't eat pvc so nothing to worry about
Current project: Afghanistan deployment
LGM
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Mon Feb 19, 2007 4:45 pm

I heard somewhere on here that gasoline won't eat the PVC, but over time will ruin the bonds between the different parts.
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frankrede
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Mon Feb 19, 2007 5:03 pm

that might be true
Current project: Afghanistan deployment
LGM
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Mon Feb 19, 2007 5:06 pm

I wonder how kerosene compares, eventually I will get some of each and test them out with a smaller one that I don't mind getting eaten up. Alas, that will have to wait until spring.
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willarddaniels
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Mon Feb 19, 2007 11:53 pm

i was wonderin, if i put a drop of gasoline my combustion cannon and left it their for a while, would it produce a vapor and be able fire??
Yes; however, any residual gas would probaly catch fire and do serious damage to your chamber. The residual would actually be te petro the gas is made from. All that evaporated and combusted would be the additives.
Or so I would imagine.
Killjoy
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Tue Feb 20, 2007 12:43 am

Ive heard the same thing LGM, and as far as i know kerosene has no effect on pvc cause ive used it before in a flamethorwer a couple times and it didn't effect the PVC in anyway.
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homedepotpro
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Wed Feb 21, 2007 6:50 pm

my gun is made of abs but it messed up my spray bottle. the problem is when you spray too much and the chamber ketches on fire, gas burns for ever
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Wed Feb 21, 2007 7:25 pm

If you want to get the gas into the chamber but not have any flamable liquid in there, here is simple plan.
Get a small piece of pipe, put an encap with a schrader valve on, cap off the otherend with a cap that has a small hose attached to it. Fill the pipe with gas and blow air through the valve while pointing the hose into the chamber. You will only get the fumes unless you blow way to much air through the hose at a time.
This could be used with other low density flamable liquids too.
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