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| mark0491 |
 Posted: 07/07/2007 13:01 PM Post subject: Help butane pronlems |
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Sergeant
Joined: 23 Jun 2007
Posts: 81
173.09 Spud Bux
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Hey i just hooked up a BBQ lighter butane attachment up to the office gun of destruction and every time i fill my chamber with butane and try the peizo igniter (also salvaged) i cant get it to fire. When i fill my chamber the piezo stops working, although when theres nothing in the chamber i have a steady works everytime spark ........ help me. PLZ  even Kermit wants an answer. |
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| SnowFlox |
| Posted: 07/07/2007 13:35 PM Post subject: |
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Sergeant First Class
Joined: 16 Jun 2007
Posts: 134
192.57 Spud Bux
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maybe you got tomuch fuel in it..
and maybe its to wet inside. I had this problem to, because the cucumbers.
There make my whole chamber wet, so there where no sparks.. |
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| mark0491 |
| Posted: 07/07/2007 13:46 PM Post subject: |
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Sergeant
Joined: 23 Jun 2007
Posts: 81
173.09 Spud Bux
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cucumber???????????????????????// and its wicked
dry in my chamber |
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| mark0491 |
| Posted: 07/07/2007 15:01 PM Post subject: |
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Sergeant
Joined: 23 Jun 2007
Posts: 81
173.09 Spud Bux
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| Any more solutions other then the cucumber is wet? |
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| Jumpin Jehosaphat |
| Posted: 07/07/2007 15:21 PM Post subject: |
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Sergeant Major
Joined: 06 Jun 2007
Posts: 190
38.85 Spud Bux
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| You are probably putting too much butane in your chamber for ignition. Combustion requires a lot of air, try putting less butane in your chamber and venting in between shots. |
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| jimmy101 |
| Posted: 07/09/2007 7:33 AM Post subject: |
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Major General
Joined: 28 Mar 2007
Posts: 1776
7533.12 Spud Bux
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1. Try a smaller spark gap. The breakdown voltage of air changes a bit when there is butane or propane present. You really only need the tinyest of spark gaps, a bigger gap does nothing for the gun's performance and is more likely to work sometimes and fail other times.
2. The generic answer for a combustion not firing is too much fuel in chamber. The combustion range for butane in air is ~1.9-8.4% by volume. If you are outside the combustion range then the fuel won't ignite regardless of how big your spark is.
3. Got a chamber fan? |
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| SnowFlox |
| Posted: 07/09/2007 9:15 AM Post subject: |
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Sergeant First Class
Joined: 16 Jun 2007
Posts: 134
192.57 Spud Bux
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| mark0491 wrote: | cucumber???????????????????????// and its wicked
dry in my chamber |
yeah you know... this green dildo thingy you can eat 
ill stick it with to much fuel  |
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| f.c |
| Posted: 07/10/2007 2:39 AM Post subject: |
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Captain
Joined: 08 Jul 2007
Posts: 342
95.15 Spud Bux
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| my suggestion is scrap the butane go for propane. butane has a tendency to be fiddly in minis. or use mentholated spirits. |
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| psycix |
| Posted: 07/10/2007 6:09 AM Post subject: |
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Major General
Joined: 25 Jun 2007
Posts: 1857
355.02 Spud Bux
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Try venting it for an hour, and then put VERY LITTLE fuel in.
I think you got too much fuel.
A rule of thumb is that when a combustion doesnt fire coz of fuel problems, you got too much fuel, never too less.
I dont know how small your chamber is but on mini guns it can also be useful to spray little fuel in, dont close the cap yet, wave it 5 times forth and back to let a part of the fuel out and some air in. And then close the cap and fire. |
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