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- December 27, 2017 at 9:58 am #30126ShawnturnerParticipant
Hello
i am a brand new member and i need some help if possible. today i made my second combustion type potato cannon and for some reason it will not fire. so here are the specs its combustion chamber is a 2 foot section of 4 inch pvc that has a coupling to the 5 foot section of 2 inch so its pretty big! which i think may be part of the problem. i am using a grill ignitor for ignition and i put the two screws close to the 4×2 coupling so there near the front of the combustion chamber.
which also may be why it doesn’t work. then its 20 degrees where i’m at so i heard that hairspray condenses on the inside of the chamber so i left it in the house for about and hour before trying it while i fine tuned the screws and it gets a good spark but when i went out to test it it wouldn’t fire. also i tried it with the end cap off so i could see if it would even shoot flame out the back but that didn’t happen either.
i think it may be the fuel if you have any suggestions for better fuel or whatever you feel is wrong with it let me know
Please help.
Thanks!I didn’t find the right solution from the Internet.
References: http://www.spudfiles.com/combustion-cannons/topic20116.html
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