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propane meter

A place to ask general spud cannon related questions.
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propane meter

Unread postAuthor: sergeantspud » Tue Jun 07, 2005 6:18 am

i just put a propane meter on my combustion cannon and now it won't fire. it use to fire ever time. i thought maybe there wasn't enough air?
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Unread postAuthor: spudshot » Tue Jun 07, 2005 7:52 am

you're putting too much propane in, try adjusting your pressure in your fuel meter, make sure you correctly measured your chamber using http://www.burntlatke.com/ft_live.html and you have the right sized meter

also are you venting your chamber enough after each shot? install a chamber fan to increase the chance of the mix igniting, and also to quickly vent the chamber
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Unread postAuthor: sergeantspud » Tue Jun 07, 2005 2:34 pm

thankyou. what does the fuel mixture mean. i got everything else
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Unread postAuthor: spudshot » Tue Jun 07, 2005 2:52 pm

fuel mixture is the percent of fuel in the chamber, you want 4.03% for a normal combustion cannon
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