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Old 04-04-2009, 11:20 PM   #1
Bad Noodle
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Default Let's do some late night engineering

What I attempted to do was build my own smoke machine to look for vacuum and boost leaks. Here's what I did:

Made a fitting for the compressor



Used a T and made a reservoir at the bottom for liquid smoke and inserted a glowplug from the top.





Made a cap to go to the turbo inlet.




Here's what the test setup looks like



And the first test didn't go so well. The glowplug got the setup too hot and ended up melting the nylon tubing on the barb wires.

So I replaced them with rubber ones. But I'm still not getting smoke coming out the tubes. I hear a sound coming from the tube, but not smoke. It kinda sounda like boiling water. So I'm not sure what's going on. It's definatly hot enough to get smoke. I did have some liquid smoke pour out the tube ends. My guess is that it's from the liquid getting heated and expanding.

For the first test I didn't have the compressor hooked up. Maybe it's not getting enough air to make smoke. So the liquid is hot enough to make smoke, but it just needs the air to get pushed though.

what do you guys think? I thought I'd 'run this by you guys before I end up offing myself somehow
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Last edited by Bad Noodle; 04-04-2009 at 11:26 PM.
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Old 04-04-2009, 11:24 PM   #2
todeswalzer
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interesting idea, i like the way yo think...plus i lold hard at the end

try it with the compressor hooked up

good luck mate
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Old 04-04-2009, 11:30 PM   #3
sorrowfulkiller
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I like it.... great diy!
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Old 04-05-2009, 12:17 AM   #4
vik_wrx
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haha interesting , nice writeup!
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Old 04-05-2009, 12:48 AM   #5
rubelcon
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notice he has not posted again? I hope he did not off himself.
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Old 04-05-2009, 02:03 AM   #6
bcWRX-02
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haha this is the kind of stuff that ends up winning a Darwin award. Cool idea, hope it works out!
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Old 04-05-2009, 02:05 AM   #7
Team Scream
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Indeed....please keep us posted with results.
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Old 04-05-2009, 03:32 AM   #8
Uncle Scotty
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meh...dont really need smoke......just a quiet place to listen for leaks and a bottle with soapy water in it
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Old 04-05-2009, 03:58 AM   #9
WhiteRabbit1021
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Of all the ways to create smoke, this one surprisingly looks to be the most dangerous way I've seen.

Nifty setup, post results if you haven't offed yourself.
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Old 04-05-2009, 04:31 AM   #10
wingnut01
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not terribly sure if oxygen is needed entirely for the liquid smoke process but without a negative pressure differential the smoke will only half heartedly roll out or into the tubes, lazy waterfall style, the compressor should fix that problem pretty nice, although, too much pressure and it will disperse the smoke too much(if you have the compresser "pushing" the air) otherwise pull the system down to a vacuum to otherwise draw the smoke in the direction you want. and from what i remember that stuff burns off pretty quick so might need a larger reservoir.
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Old 04-05-2009, 01:25 PM   #11
hotrod
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Are you using the "Liquid smoke" used in cooking?
The stuff they use in smoke making machines is a light oil, you can buy it at theatrical supply stores. (or you can just rent a theatrical smoke maker for the day)

Larry
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Old 04-06-2009, 01:32 AM   #12
Counterfit
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Maybe you need to put some weed in it.
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Old 04-06-2009, 02:17 AM   #13
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Quote:
what do you guys think? I thought I'd 'run this by you guys before I end up offing myself somehow

Im just hoping that the op d0000d didnt hurt himself or burn down his house with that thing

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Old 04-06-2009, 07:16 AM   #14
Bad Noodle
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Quote:
Originally Posted by Uncle Scotty View Post
Im just hoping that the op d0000d didnt hurt himself or burn down his house with that thing

na, just haven't had time to go back and try again. I have the battery charger set at the 2amp trickle charge setting, which I'm hoping is good enough not to blow up the neighborhood in case the leads make contact.

I did try the setup with the hoses off, but didn't get much smoke coming out of the fittings. In fact, I didn't get any smoke at all.

The only smoke I got was from the liquid smoke I spilled onto the contraption and then I switched on the 12amp setting and hoped for the best. At that point, the whole thing got hot and the outside started to smoke, but i never saw anything come out from the inside. So I decided to back off down to 2 amps

either way, I can't figure out why i'm not getting smoke from the inside. It should be smoking like a chimney since it's definitely full.

I'm not sure if I need a different setup or im using this setup incorrectly somehow...
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Old 04-06-2009, 09:15 AM   #15
thedoc13
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I think you need to figure out how much heat is actually necessary to heat up the liquid to create smoke. I also think you might not be getting enough air for it to create smoke.
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Old 04-06-2009, 10:47 AM   #16
Uncle Scotty
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you need different smoke generating media
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Old 04-07-2009, 08:11 PM   #17
hotrod
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Quote:
you need different smoke generating media
You can lead a horse to water --- but


Larry
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Old 04-07-2009, 08:22 PM   #18
Cruzin8
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nice work.
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Old 04-07-2009, 08:26 PM   #19
2:43AM
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Mesquite, let's eat!

I think it's a good idea, but the volume of smoke needed for your checks may not be adequate. The small tubing and small air volume will only create "whisps" of smoke...maybe...and not enough to fill intakes, tubing, etc. with nice think-n-rich smoke. Just my thoughts.
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Old 04-07-2009, 09:17 PM   #20
Bad Noodle
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I had some time to mess with it tonight so here's the setup again:



I set the battery charger at 2 amps and put a drop of smoke on the outside of the resivoir, so when it started smoking I knew it was ready. Then I turned the pump on:



Then I hooked it up to the car and wala:




found my boost leak right away. It's funny cus i tried to find this with the regular setup and soap and water and I couldn't find it. This took all of 5 min to do.

I'm a fan
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Old 04-07-2009, 11:16 PM   #21
imprezaowner27
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this is pretty neat stuff
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Old 04-08-2009, 12:16 AM   #22
kcook
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so you have a crack in the i/c pipe?
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Old 04-08-2009, 06:48 AM   #23
Bad Noodle
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Quote:
Originally Posted by kcook View Post
so you have a crack in the i/c pipe?
Na, you can't see it since it's tough to get a picture, but I had a leak in the coupler. Even though it was cranked down as hard as it would go, the sucker was leaking. I don't know why it didn't make soap bubbles either. But this found it easily
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Old 05-19-2009, 08:18 PM   #24
BeBop86
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That's pretty cool, i'll have to try it.
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Old 12-04-2013, 11:07 PM   #25
tenchu
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Can you post up a step by step of your SUCCESSFUL setup? I'd really like to give this a try on both of my turbo subarus.
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