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WTF?? can someone help me out...

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Unread postAuthor: jimmy101 » Mon May 21, 2007 12:28 pm

I did the exact same thing and It doesnt work??
Just because it worked once doesn't mean you have the amount of fuel figured out.

Ventilate the chamber.

Start with a very small amount of fuel, ventilate and refuel after every failure.

You have to be consistent in your fueling. That means the same length of time for the squirt, at the same distance from the breech.

After fueling, but before firing, invert the gun a few times to try to get the fuel to mix. (Propane and butane are denser than air). A chamber fan works much better.
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Unread postAuthor: spud yeti » Mon May 21, 2007 1:16 pm

This is getting repetitive, but i too am a pneumatic guy, and sugest you try pneumatic! :lol: But back in the days of hairspray and deoderant i also encountered your problem, tried less of the spray and it generally worked. bigger lighter sparker too. i then saw the light and proceeded to build pneumatic...you have a RIGHT to... :lol: :lol: :lol:
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Unread postAuthor: kingjames488 » Mon May 21, 2007 1:30 pm

thankyou SpudBlaster15...
people who dont read drive me crazy!!
With the bigger gap it only sparked like 1/10 times.
I went out and got new shinny brass bolts, maybe they will work better.
I'm using about the same amount of fuel too.
It's just weird...
(I even tryed carberator cleaner, as my dad said it would work better)
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Unread postAuthor: Spuddin » Mon May 21, 2007 2:01 pm

i tried several different fuels including carb cleaner which never worked for me, i think your problem is your fuel. the cheap hairspray worked best when i was combusting. good luck.
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Unread postAuthor: kingjames488 » Mon May 21, 2007 3:08 pm

the right guard has ALWAYS worked other times...
Even in my old mini Q-tip cannon.
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Unread postAuthor: ShowNoMercy » Mon May 21, 2007 3:09 pm

Use Oxy and acetylyne, it works real good.
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Unread postAuthor: sandman » Mon May 21, 2007 3:14 pm

lol, yep it does, if you want to comit suicide

any way king james, you see all the suggestions, tell us when you try them
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Unread postAuthor: ShowNoMercy » Mon May 21, 2007 3:44 pm

Each day is just one more less in your life so whats the problem with going out with a bang? A flash of light and some searing heat and thats all she wrote....
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Unread postAuthor: sandman » Mon May 21, 2007 3:48 pm

well, if you dont commit suicide then there is another day that you can build a spud gun
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Unread postAuthor: ShowNoMercy » Mon May 21, 2007 3:54 pm

Ahh but if you die then you can go to spugun heavan
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Unread postAuthor: sandman » Mon May 21, 2007 4:00 pm

yep, but just think then god will always have one bigger than yours

erm, i think we are off topic
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Unread postAuthor: ShowNoMercy » Mon May 21, 2007 4:00 pm

lol yes we are, my bad
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Unread postAuthor: paaiyan » Mon May 21, 2007 5:15 pm

Spuddin wrote:i tried several different fuels including carb cleaner which never worked for me, i think your problem is your fuel. the cheap hairspray worked best when i was combusting. good luck.


I personally like Static Guard. I just went shooting with my inline combustion and I was launching spuds 200 yards from a 1.5 inch barrel.
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Unread postAuthor: kingjames488 » Mon May 21, 2007 5:49 pm

I think my spark is just too small...
but I'm too angry (other word in head...) at the fregan (again, not what I would say :P) cannon to fix it now.

PLEASE

stop sugesting new fuels...
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Unread postAuthor: homedepotpro » Mon May 21, 2007 7:27 pm

i have a tiny spary gap like , ] [ and it lites my 6'' chamber fine, some times the fuels conduct the current around the inside of the chamber
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