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General Forestry => Chainsaws => Topic started by: minesmoria on January 04, 2005, 11:57:05 AM

Title: Gas wont catch fire!
Post by: minesmoria on January 04, 2005, 11:57:05 AM
I have three month old 2 cycle gas mix i used a gas protector in it as well.

The gas worked fine in the saw, and there was a littel bit left in the can i put it in a glass jar and tryed to burn it.

It would catch fire for one second then go out what woud cause it not to catch fire? does this mean its gone bad?
Title: Re: Gas wont catch fire!
Post by: ibbob on January 04, 2005, 12:38:14 PM
I think it means you got lucky.  Fire prolly went out for lack of oxygen before your bomb went boom.
Title: Re: Gas wont catch fire!
Post by: Jeff on January 04, 2005, 12:45:53 PM
QuoteI think it means you got lucky.  Fire prolly went out for lack of oxygen before your bomb went boom.

I concur. If it was a narrow mouthed jar especially, you burnt off the oxygen before it was able to send you to the burn ward.
Title: Re: Gas wont catch fire!
Post by: leweee on January 04, 2005, 02:54:41 PM
Remines me of this(https://forestryforum.com/images/03_21_04/lewrocketsciencez.jpg)

 :D :D :D ::)
Title: Re: Gas wont catch fire!
Post by: rebocardo on January 04, 2005, 06:54:43 PM
A teaspoon of evaporated gas is equal to the energy in a stick of dynamite. It is not the gas that explodes inside your piston, its the vapor from the gas. You can stick a burning match right into gas and it will not explode, the problem comes when the match meets the vapor laying over the surface of the gasoline. BOOM. You just got lucky.


Title: Re: Gas wont catch fire!
Post by: John_Boisselier on January 04, 2005, 10:01:04 PM
It means that your guardian angel was very busy.  No more oxygen is why the flame went out.  Even bad gas will burn.  The sniff test to see if the gas smells like varnish is probably a bit safer way to determine if the gas is good or not.
Title: Re: Gas wont catch fire!
Post by: Avalancher on January 05, 2005, 05:14:29 AM
Reminds me of that movie "Backdraft" where the arsonist would set a small fire to smolder, seal up the room, and leave it to be found by the first joker unfortunate to open the door and supply the needed oxygen to the fire.
BOOM
Title: Re: Gas wont catch fire!
Post by: OneWithWood on January 05, 2005, 09:15:25 AM
Promise yourself you will never do that again!  :o

Those shards of glass would have caused you immense discomfort if you lived to tell about it :-/  Be thankful the oxygen was not sufficient in the jar for the vapors to fully ignite.
Title: Re: Gas wont catch fire!
Post by: IndyIan on January 05, 2005, 11:10:53 AM
One day when I was quite a bit younger I filled up a cap of a container of 2 stroke oil with gas.  Probably a teaspoon worth.  I tried to light it with a match and it wouldn't burn...  Only when I set up the match like a wick did the whole thing start going.  I can't remember if it was old mix or not but it surprised me alot that it was that hard to light.
For a little while I didn't think gas was too dangerous but my Dad started a brush pile with a cup full of gas and I relearned that gas wasn't to be played with.  There was quite a whoomp when that lit... :o  
  
Title: Re: Gas wont catch fire!
Post by: Furby on January 05, 2005, 06:24:17 PM
Yep, that's what happens with the 2 stroke mix. The gas evaporates and leaves a higher content of oil behind. The original ratio of the mix does come into play, as does wether the gas was left in an open container or sealed. As the gas gets old there are less fumes. Fuel oil and cooking oil can be burned just like a candle. 2 stroke mix will get to a point where it does the same thing.

The WHOOMP, are all those fresh fumes. ;D
It's never a GOOD idea to mix matches and gas.  ::)

Title: Re: Gas wont catch fire!
Post by: twostroke_blood on January 06, 2005, 01:44:20 PM
At this point I can only offer this advice: If at first you don't succeed try, try again! Let's see if this post survives Chainsaw Forum censure.
Title: Re: Gas wont catch fire!
Post by: redpowerd on January 06, 2005, 02:03:20 PM
huh? :-/
Title: Re: Gas wont catch fire!
Post by: Jeff on January 06, 2005, 02:20:48 PM
QuoteAt this point I can only offer this advice: If at first you don't succeed try, try again! Let's see if this post survives Chainsaw Forum censure.

I predict that any posts having to do with topics that are not suitable for the students that use this forum as a resource or our younger family members that visit with us to view, in good conscience, will continue to disappear. In fact its not a prediction it is a guarantee. This is not a public forum, it is website where we allow anyone to join in by registering with the understanding that they abide by our standards.

Since you choose to make a deletion of a post a public event, so is my answer. I could just as well have answered a private message. Your understanding is appreciated but not necessary.
Title: Re: Gas wont catch fire!
Post by: twostroke_blood on January 06, 2005, 02:22:15 PM
Im sorry i meant to say censorship. >:(
Title: Re: Gas wont catch fire!
Post by: Jeff on January 06, 2005, 02:36:09 PM
Call it what you want, just dont do it here.
Title: Re: Gas wont catch fire!
Post by: twostroke_blood on January 06, 2005, 03:03:53 PM
What does any of this have to do with chainsaws? I like vintage chainsaws. anyone else?
Title: Re: Gas wont catch fire!
Post by: Jeff on January 07, 2005, 03:34:29 AM
Try this thread on the genral board. Ianab has posted some pictures of some old saws on his vacation picture thread.
https://forestryforum.com/cgi-bin/board/YaBB.pl?board=general;action=display;num=1104305468;start=7#7
Title: Re: Gas wont catch fire!
Post by: redpowerd on January 07, 2005, 05:05:01 AM
did you check out the 'old saws' thread on the chainsaw forum? it may need a bump.
Title: Re: Gas wont catch fire!
Post by: tony_marks on January 11, 2005, 05:01:04 AM
 i think all he was trying to burn was water at the bottom of his container..if you can get a match to it ,it ll suck enuff oxygen in to
 burn ,go off or whatever. depends on the circumstances.. jmo
 no offense intended there brother..