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Failure turned into a Success!!!

Posted: Wed May 07, 2008 8:45 pm
by DarenN
here's a pic of a failed design.

Image

the top of a Jolt can for the top. a cat food aluminum can for the bottom. beer can rolled for the liner. fiberglass wick wrapped around the liner.
it took about a minute for it to bloom (poorly). after a couple more minutes the bloom quit. then it burned slowly out of the center till it ran out of fuel.

possible causes:
too deep?
wick too thick?
center too small? (i hope not! that would kill the "Jolt can top" idea.)

Daren.....

Re: Failure!

Posted: Wed May 07, 2008 10:24 pm
by Ridgerunner
center too small? (i hope not! that would kill the "Jolt can top" idea.)

The Jolt top worked with my SGT. York Stove.Image It did take a little longer to blume compared to the trangia but not nearly as long as the WBS. ;) Initially, I had the same problem Daren, until I increased the jet hole size. I wonder if a few jet ports around the top on the inside would make any difference :?:

Re: Failure!

Posted: Wed May 07, 2008 11:07 pm
by Ridgerunner
Daren, Did you take the Jolt top off with a safety cutter can opener? mine has a bar loop that would not allow me to remove it with my safety opener :x The bar hit the neck. Since I was going to flaten it out anyway and JB-weld it in place, I just use some tin snips. What brand of safety cutter do you have if that is indeed how you got the top off?

Re: Failure!

Posted: Wed May 07, 2008 11:24 pm
by zelph
Nice!!!! More holes and bigger ones to increase lineal millimeters of flame surface to provide more heat to keep it hot enough to keep it boiling inside. :?:

Does the cap seal properly on the burner to prevent leaking? Same :?: to you Ridgerunner.

Re: Failure!

Posted: Thu May 08, 2008 12:14 am
by DarenN
Zelph knows about the inside jets more than i would. the idea has crossed my mind. RR, what size and how many jets on your stove?

first thing i'm going to try is double the number of holes. i can do that without starting over.

didn't try it for seal. but i suspect no, cause i need to trim the liner down a bit.

this is how i took the top off the Jolt can:
with the can intact, i scored it around a few times, at the underside of the heavey lip, with a stanley knife. carefully!! it's easy to slip with the knife doing it like this. then pierced the can and cut up to the lip as close as i could with scissors. it'll just peel off from there. it was a lot easier than i thought it would be.

this'll be fun! :)
we'll all work through this together. and when it works, we'll call it the BeePeegia. for now, it's the Jolgia. it may not work, but it has a name. 8-)

thanks guys;
Daren......

Re: Failure!

Posted: Thu May 08, 2008 5:20 am
by Ridgerunner
Does the cap seal properly on the burner to prevent leaking? Same to you Ridgerunner.

zelph
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by DarenN on Wed May 07, 2008 11:14 pm

Zelph knows about the inside jets more than i would. the idea has crossed my mind. RR, what size and how many jets on your stove?


The cap does not seal. I've wondered if a bead of gasket sealer around the inside of lid would work :idea:

Daren, mine has 16 holes, not sure of diameter....used the larger bit in my pin vice.
Another idea, without having to do any revamping, would be to put a few drops of alky on the lid at the base of the neck. Light the inside, wait 10 seconds, then light the lid. :idea:

Re: Failure!

Posted: Thu May 08, 2008 8:28 am
by DarenN
for the cap seal.
remove the original gasket. cover the top with saran wrap real nicely, so there's no wrinkles. coat the inside of the lid with gasket compound. put lid on loosely and let it cure. the saran will peal of, and you have a formed in place gasket.

mine too has 16 holes. about .035. i'm going to drill them out to .046 and give it a try.

the shape of the top just screams 'built in primer tray'. :)

Re: Failure!

Posted: Thu May 08, 2008 11:01 am
by zelph
DarenN wrote:for the cap seal.
remove the original gasket. cover the top with saran wrap real nicely, so there's no wrinkles. coat the inside of the lid with gasket compound. put lid on loosely and let it cure. the saran will peal of, and you have a formed in place gasket.

mine too has 16 holes. about .035. i'm going to drill them out to .046 and give it a try.

the shape of the top just screams 'built in primer tray'. :)


Great idea the formed in place gasket, BRAVO!!!! :geek:

The one stove I made with internal jets worked fine except for blossom time. I didn't try a priming pan.

I'm screaming goooood on the built in primer ring. Nice feature for sure!!!! Make it work :mrgreen:

Re: Failure!

Posted: Thu May 08, 2008 6:13 pm
by Ridgerunner
I believe my holes were bored out to .042. I would also trim down your inner wall so it is flush with the top. Did you jb-weld the Jolt top to the catfood tin and did the catfood tin fit in the channel of the Jolt edge lip ?
I think the built in primer ring is just what the doctor ordered. ;)
Let us know how the testing is proceeding. :D

Re: Failure!

Posted: Thu May 08, 2008 7:37 pm
by DarenN
thanks, i'll try .042 or whatever i've got that's close.
everthing is JB'd. to fit the lid into the catfood tin i took the can to work with me and ran it through a machine called a "swedger". as the can turned it was streched to the correct size to accept the outer diameter of the lid.