Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 81 users online :: 4 registered, 0 hidden and 77 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

What is wrong!!!

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
Sponsored 
  • Author
    Message

What is wrong!!!

Unread postAuthor: comp_nerd4 » Tue Sep 12, 2006 5:36 pm

ok so i have built the basic spudgun and i stick the potato in push it down then spray in some hair spray of propane then screw it close and start click ing the bbq starter but no combustion! so i open it up click it and im getting spark and if i keep clicking it (wile it is open) some times i huge burst of fire comes out. so what is wrong!


==========<===|===D
__________________^
__________________|
screw location for bbq starter!
  • 0


comp_nerd4
Private
Private
 
Posts: 1
Joined: Fri Sep 08, 2006 10:33 pm
Reputation: 0

Unread postAuthor: Shrimphead » Tue Sep 12, 2006 6:35 pm

You have probably been putting too much fuel in. Try less fuel.
  • 0

Controlled insanity = Genius
Life flies when you're being dumb.
User avatar
Shrimphead
Colonel
Colonel
 
Posts: 509
Joined: Thu Nov 17, 2005 7:42 pm
Reputation: 0

Unread postAuthor: SpudStuff » Tue Sep 12, 2006 6:50 pm

dont use hair spray it is the WORST fuel ever it is not powerful and gums up a chamber. use ether or starting fluid for cars. Remember less is more. Mabae 1/2 to 3/4 of a second of fuel.
  • 0

User avatar
SpudStuff
Major General
Major General
 
Posts: 1410
Joined: Sat Dec 10, 2005 3:55 pm
Location: Cupertino, California
Reputation: 1

Unread postAuthor: jrrdw » Tue Sep 12, 2006 9:14 pm

What ever you decide to use, after you fuel it up, shake it like nuts to mix the fuel and air better. A more even mix will light better then the heavy load, LESS can be MORE.
  • 0

When life gives you lemons...throw them back they suck!
User avatar
jrrdw
Donating Moderator
Donating Moderator
 
Posts: 6538
Joined: Wed Nov 16, 2005 5:11 pm
Location: Maryland
Country: United States (us)
Reputation: 25

Unread postAuthor: MrCrowley » Tue Sep 12, 2006 10:49 pm

the reason why it fires when you take the cap of is because there wasnt enough oxygen/air so you put oo much in,if you accidently put too much in just wave it around for a second and then screw on the cap and fire.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: OwThatsMyEye » Tue Sep 12, 2006 11:00 pm

SpudStuff wrote:...use ether or starting fluid for cars...

That is going to gum up his chamber alot worse than hair spray will.
  • 0


OwThatsMyEye
Corporal
Corporal
 
Posts: 74
Joined: Wed Jun 28, 2006 2:27 pm
Country: United States (us)
Reputation: 0

Unread postAuthor: carlbelcher » Tue Sep 12, 2006 11:35 pm

Why would starter fluid gum up his chamber worse then hairspray?!

Last time I checked starter fluid is pure Ether...
  • 0

Is your Google.com Broken?!
User avatar
carlbelcher
Donating Member
Donating Member
 
Posts: 532
Joined: Mon Jun 12, 2006 6:54 pm
Reputation: 1

Sponsored

Sponsor
 


Unread postAuthor: MrCrowley » Wed Sep 13, 2006 12:01 am

my starter fluid just turns the chamber white but easily comes off.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: jrrdw » Wed Sep 13, 2006 5:48 am

Starting fluid has oil's in it, i think to help protect parts. The bad thing about ether is it's real hard to get consistent effects, even when metered the same every time. If you can create a controlled injection like hybrds do, it would produce better results. I think you would get better results with a cheep can of carburator cleaner, i allways use that to prime engines instead of ether/starter fluid. Lessing the chance of blowing a cylinder head off the block.
  • 0

When life gives you lemons...throw them back they suck!
User avatar
jrrdw
Donating Moderator
Donating Moderator
 
Posts: 6538
Joined: Wed Nov 16, 2005 5:11 pm
Location: Maryland
Country: United States (us)
Reputation: 25

Unread postAuthor: carlbelcher » Wed Sep 13, 2006 2:25 pm

I don't think carb cleaner is a good idea...

I don't like the idea of spraying a harsh chemical degreaser on my plastic cannon.
  • 0

Is your Google.com Broken?!
User avatar
carlbelcher
Donating Member
Donating Member
 
Posts: 532
Joined: Mon Jun 12, 2006 6:54 pm
Reputation: 1

Return to Combustion Cannon Discussion

Who is online

Registered users: Bing [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'