[Arthur Wood]

All we need to find vacuum leaks in a complex engine is a smoke machine
that works. All it needs to do is...
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

We made a smoke machine to work on a friend's kid's old bimmer but the
smoke machine we made failed to generate enough smoke. And now I need a
smoke machine.
https://www.turboimagehost.com/p/368...moke2.jpg.html

It seems so simple, and yes, we've seen the "cigar in a can" and "burning
rags in a can" videos but they all have problems of not generating enough
smoke for a long enough period of time.

Our machine generates smoke for a long time but not enough smoke!
https://www.turboimagehost.com/p/368...moke7.jpg.html

It's 3 holes in a new paint can with glycerin in a soup can inside.
https://www.turboimagehost.com/p/368...moke3.jpg.html

The top has a 12VDC diesel glow plug which gets red hot. It is stuck into
the glycerin in a soup can. That generates the smoke.
https://www.turboimagehost.com/p/368...moke5.jpg.html

We push that smoke out regulated at about 3 psi with an air gun mounted on
the side.
https://www.turboimagehost.com/p/368...moke8.jpg.html

There's just not enough smoke.
https://www.turboimagehost.com/p/368...moke9.jpg.html

Do you know what fluid would generate more non-sticky smoke?
Or do you know of a hundred dollar smoke machine that can do the two thing?
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

[Phil Hobbs]

On 12/15/2017 10:14 AM, Arthur Wood wrote:
All we need to find vacuum leaks in a complex engine is a smoke machine
that works. All it needs to do is...
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

We made a smoke machine to work on a friend's kid's old bimmer but the
smoke machine we made failed to generate enough smoke. And now I need a
smoke machine.
https://www.turboimagehost.com/p/368...moke2.jpg.html

It seems so simple, and yes, we've seen the "cigar in a can" and "burning
rags in a can" videos but they all have problems of not generating enough
smoke for a long enough period of time.

Our machine generates smoke for a long time but not enough smoke!
https://www.turboimagehost.com/p/368...moke7.jpg.html

It's 3 holes in a new paint can with glycerin in a soup can inside.
https://www.turboimagehost.com/p/368...moke3.jpg.html

The top has a 12VDC diesel glow plug which gets red hot. It is stuck into
the glycerin in a soup can. That generates the smoke.
https://www.turboimagehost.com/p/368...moke5.jpg.html

We push that smoke out regulated at about 3 psi with an air gun mounted on
the side.
https://www.turboimagehost.com/p/368...moke8.jpg.html

There's just not enough smoke.
https://www.turboimagehost.com/p/368...moke9.jpg.html

Do you know what fluid would generate more non-sticky smoke?
Or do you know of a hundred dollar smoke machine that can do the two thing?
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

https://www.amazon.com/gp/product/B01N2XYORX

Cheers

Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
https://hobbs-eo.com

[trader_4]

On Friday, December 15, 2017 at 10:23:04 AM UTC-5, Phil Hobbs wrote:
On 12/15/2017 10:14 AM, Arthur Wood wrote:
All we need to find vacuum leaks in a complex engine is a smoke machine
that works. All it needs to do is...
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

We made a smoke machine to work on a friend's kid's old bimmer but the
smoke machine we made failed to generate enough smoke. And now I need a
smoke machine.
https://www.turboimagehost.com/p/368...moke2.jpg.html

It seems so simple, and yes, we've seen the "cigar in a can" and "burning
rags in a can" videos but they all have problems of not generating enough
smoke for a long enough period of time.

Our machine generates smoke for a long time but not enough smoke!
https://www.turboimagehost.com/p/368...moke7.jpg.html

It's 3 holes in a new paint can with glycerin in a soup can inside.
https://www.turboimagehost.com/p/368...moke3.jpg.html

The top has a 12VDC diesel glow plug which gets red hot. It is stuck into
the glycerin in a soup can. That generates the smoke.
https://www.turboimagehost.com/p/368...moke5.jpg.html

We push that smoke out regulated at about 3 psi with an air gun mounted on
the side.
https://www.turboimagehost.com/p/368...moke8.jpg.html

There's just not enough smoke.
https://www.turboimagehost.com/p/368...moke9.jpg.html

Do you know what fluid would generate more non-sticky smoke?
Or do you know of a hundred dollar smoke machine that can do the two thing?
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

https://www.amazon.com/gp/product/B01N2XYORX

Cheers

Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
https://hobbs-eo.com

That's what I was telling him about in the other thread here, that I've
heard people have used one of those disco smoke gizmos. Seems you
should be able to rig up something to pipe it in. Plus, with a boom box
and some songs, you can have a business at parties and weddings as a DJ.

[Arthur Wood]

trader_4 wrote:

https://www.amazon.com/gp/product/B01N2XYORX
That's what I was telling him about in the other thread here, that I've
heard people have used one of those disco smoke gizmos. Seems you
should be able to rig up something to pipe it in. Plus, with a boom box
and some songs, you can have a business at parties and weddings as a DJ.

I thank you for coming to my aid, and I apologize for not having "believed"
in your previous suggestion. (See below why.)

For some reason, I had thought that the "party foggers" had a big opening
at low pressure (like the size you can put your hand through) but this one
in the Amazon picture seems to have a one-inch opening with a tiny 1/4-inch
nozzle.

Is that right?

If so, I don't see why it's not perfect for the task - if it generates the
smoke at enough of a pressure to get us a couple of psi for a long period
of time. It has to be in the goldilocks range of a few psi (maybe 2 to 4
psi?).

The output is 2000 CFM, which seems like a lot.
Is there a way to *convert* that to PSI?

The "wired control" might even be useful for one-man operation while
debugging a vaccum leak on an engine.

The machine holds 0.5 liters (1/8 gallon) where a gallon of the fog juice
(propylene glycol perhaps?) is $20 which means the machine, over time, is
cheaper than the fluid used to make the smoke!
https://www.amazon.com/Gallon-Great-Party-Fog-Machines/dp/B005UQPPK4/ref=pd_sim_267_1/135-2052768-3676406

So I do agree, for forty something bucks, it's about the same cost as what
it cost me to make that tin-can smoke machine that didn't work.
https://www.turboimagehost.com/p/368...moke1.jpg.html

Any idea how to calculate the PSI out from the 2000CFM spec?

[=?iso-8859-15?Q?Tekkie=AE?=]

Arthur Wood posted for all of us...



All we need to find vacuum leaks in a complex engine is a smoke machine
that works. All it needs to do is...
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

We made a smoke machine to work on a friend's kid's old bimmer but the
smoke machine we made failed to generate enough smoke. And now I need a
smoke machine.
https://www.turboimagehost.com/p/368...moke2.jpg.html

It seems so simple, and yes, we've seen the "cigar in a can" and "burning
rags in a can" videos but they all have problems of not generating enough
smoke for a long enough period of time.

Our machine generates smoke for a long time but not enough smoke!
https://www.turboimagehost.com/p/368...moke7.jpg.html

It's 3 holes in a new paint can with glycerin in a soup can inside.
https://www.turboimagehost.com/p/368...moke3.jpg.html

The top has a 12VDC diesel glow plug which gets red hot. It is stuck into
the glycerin in a soup can. That generates the smoke.
https://www.turboimagehost.com/p/368...moke5.jpg.html

We push that smoke out regulated at about 3 psi with an air gun mounted on
the side.
https://www.turboimagehost.com/p/368...moke8.jpg.html

There's just not enough smoke.
https://www.turboimagehost.com/p/368...moke9.jpg.html

Do you know what fluid would generate more non-sticky smoke?
Or do you know of a hundred dollar smoke machine that can do the two thing?
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

From reading replies you don't any research on anything before posting, then
you argue and ask more questions. Are you a previous poster under another
name?

--
Tekkie

[rickman]

Arthur Wood wrote on 12/15/2017 12:46 PM:
trader_4 wrote:

https://www.amazon.com/gp/product/B01N2XYORX
That's what I was telling him about in the other thread here, that I've
heard people have used one of those disco smoke gizmos. Seems you
should be able to rig up something to pipe it in. Plus, with a boom box
and some songs, you can have a business at parties and weddings as a DJ.

I thank you for coming to my aid, and I apologize for not having "believed"
in your previous suggestion. (See below why.)

For some reason, I had thought that the "party foggers" had a big opening
at low pressure (like the size you can put your hand through) but this one
in the Amazon picture seems to have a one-inch opening with a tiny 1/4-inch
nozzle.

Is that right?

If so, I don't see why it's not perfect for the task - if it generates the
smoke at enough of a pressure to get us a couple of psi for a long period
of time. It has to be in the goldilocks range of a few psi (maybe 2 to 4
psi?).

How did you come up with that number?


The output is 2000 CFM, which seems like a lot.
Is there a way to *convert* that to PSI?

Not really. Most likely they are using a fan designed to move air against
very little pressure, like the "muffin" fans in a PC. They will move a
decent volume of air at very low pressure, but the air flow falls off very
quickly as the pressure increases. The only way to know for sure is to get
the spec sheet of the fan.

Here is a spec sheet of a typical DC cooling fan.

http://www.nmbtc.com/content/pdfs/08015JE.pdf

Notice the flow goes to zero at pressures around 0.1 inches of H2O. Your 2
psi would be 55 inches of H2O.

Maybe they are using a different type of fan, but I don't think you are
going to get 2 psi from one of these machines. Maybe you could rig your
compressor to it to boost the pressure.


The "wired control" might even be useful for one-man operation while
debugging a vaccum leak on an engine.

The machine holds 0.5 liters (1/8 gallon) where a gallon of the fog juice
(propylene glycol perhaps?) is $20 which means the machine, over time, is
cheaper than the fluid used to make the smoke!
https://www.amazon.com/Gallon-Great-Party-Fog-Machines/dp/B005UQPPK4/ref=pd_sim_267_1/135-2052768-3676406

So I do agree, for forty something bucks, it's about the same cost as what
it cost me to make that tin-can smoke machine that didn't work.
https://www.turboimagehost.com/p/368...moke1.jpg.html

The same cost for something that also isn't likely to work without
modification.

Any idea how to calculate the PSI out from the 2000CFM spec?

See above...

--

Rick C

Viewed the eclipse at Wintercrest Farms,
on the centerline of totality since 1998

[[email protected]]

On Fri, 15 Dec 2017 17:46:23 -0000 (UTC), Arthur Wood
wrote:

trader_4 wrote:

https://www.amazon.com/gp/product/B01N2XYORX
That's what I was telling him about in the other thread here, that I've
heard people have used one of those disco smoke gizmos. Seems you
should be able to rig up something to pipe it in. Plus, with a boom box
and some songs, you can have a business at parties and weddings as a DJ.

I thank you for coming to my aid, and I apologize for not having "believed"
in your previous suggestion. (See below why.)

For some reason, I had thought that the "party foggers" had a big opening
at low pressure (like the size you can put your hand through) but this one
in the Amazon picture seems to have a one-inch opening with a tiny 1/4-inch
nozzle.

Is that right?

If so, I don't see why it's not perfect for the task - if it generates the
smoke at enough of a pressure to get us a couple of psi for a long period
of time. It has to be in the goldilocks range of a few psi (maybe 2 to 4
psi?).

The output is 2000 CFM, which seems like a lot.
Is there a way to *convert* that to PSI?

The "wired control" might even be useful for one-man operation while
debugging a vaccum leak on an engine.

The machine holds 0.5 liters (1/8 gallon) where a gallon of the fog juice
(propylene glycol perhaps?) is $20 which means the machine, over time, is
cheaper than the fluid used to make the smoke!
https://www.amazon.com/Gallon-Great-Party-Fog-Machines/dp/B005UQPPK4/ref=pd_sim_267_1/135-2052768-3676406

So I do agree, for forty something bucks, it's about the same cost as what
it cost me to make that tin-can smoke machine that didn't work.
https://www.turboimagehost.com/p/368...moke1.jpg.html

Any idea how to calculate the PSI out from the 2000CFM spec?
You can calculate the PSI if you know the viscosity of the fluid and
the size of the orifice the fluid has to pass through. So you will
need to guess at the size of the orifice on the party smoke machine
and then look online for about 5 minutes to find a page that will let
you just plug the numbers in. I am pretty sure that searching for a
"conversions" web site will provide you with a solution. Why do you
need 2 to 4 PSI?
Eric

[trader_4]

On Friday, December 15, 2017 at 12:46:27 PM UTC-5, Arthur Wood wrote:
trader_4 wrote:

https://www.amazon.com/gp/product/B01N2XYORX
That's what I was telling him about in the other thread here, that I've
heard people have used one of those disco smoke gizmos. Seems you
should be able to rig up something to pipe it in. Plus, with a boom box
and some songs, you can have a business at parties and weddings as a DJ.

I thank you for coming to my aid, and I apologize for not having "believed"
in your previous suggestion. (See below why.)

For some reason, I had thought that the "party foggers" had a big opening
at low pressure (like the size you can put your hand through) but this one
in the Amazon picture seems to have a one-inch opening with a tiny 1/4-inch
nozzle.

Is that right?

IDK, I'm not the manufacturer.



If so, I don't see why it's not perfect for the task - if it generates the
smoke at enough of a pressure to get us a couple of psi for a long period
of time. It has to be in the goldilocks range of a few psi (maybe 2 to 4
psi?).

The output is 2000 CFM, which seems like a lot.
Is there a way to *convert* that to PSI?

You'd think that when it's going into a limited space, ie your car,
that the PSI would rise. It doesn't have to rise much.




The "wired control" might even be useful for one-man operation while
debugging a vaccum leak on an engine.

The machine holds 0.5 liters (1/8 gallon) where a gallon of the fog juice
(propylene glycol perhaps?) is $20 which means the machine, over time, is
cheaper than the fluid used to make the smoke!
https://www.amazon.com/Gallon-Great-Party-Fog-Machines/dp/B005UQPPK4/ref=pd_sim_267_1/135-2052768-3676406

So I do agree, for forty something bucks, it's about the same cost as what
it cost me to make that tin-can smoke machine that didn't work.
https://www.turboimagehost.com/p/368...moke1.jpg.html

Any idea how to calculate the PSI out from the 2000CFM spec?

There is no way, without knowing about the design and specs of the blower.
I think if you google you'll find car folks that have done similar.
And if you buy it for $30 and it doesn't work, you can become a DJ.
Or sell it on Ebay and get most of your money back.


Me, I'd fix the known issues and not worry about whether there are
other vac leaks or not, until later, if it is still throwing lean
codes.

[micky]

In alt.home.repair, on Fri, 15 Dec 2017 17:46:23 -0000 (UTC), Arthur
Wood wrote:

trader_4 wrote:

https://www.amazon.com/gp/product/B01N2XYORX
That's what I was telling him about in the other thread here, that I've
heard people have used one of those disco smoke gizmos. Seems you
should be able to rig up something to pipe it in. Plus, with a boom box
and some songs, you can have a business at parties and weddings as a DJ.

I thank you for coming to my aid, and I apologize for not having "believed"
in your previous suggestion. (See below why.)

For some reason, I had thought that the "party foggers" had a big opening
at low pressure (like the size you can put your hand through) but this one
in the Amazon picture seems to have a one-inch opening with a tiny 1/4-inch
nozzle.

Is that right?

If so, I don't see why it's not perfect for the task - if it generates the
smoke at enough of a pressure to get us a couple of psi for a long period
of time. It has to be in the goldilocks range of a few psi (maybe 2 to 4
psi?).

The output is 2000 CFM, which seems like a lot.
Is there a way to *convert* that to PSI?

Why are you concerned with PSI. AIUI, you only need enough pressure to
get the smoke out of the machine, or out of the hose**. Plainly it has
that much pressure, or the machine wouldn't function for its original
purpose.

After that the smoke just has to float around near the vacuum leak and
the vacuum will suck it into the engine.

If anything too much pressure would make the smoke zoom by the leak
without stopping. LOL Well, not unless it was r eally fast, you'd
still probably see some of it get waylaid and sucked into the engine

**Or are you saying it needs enough pressure to get through the hose?
The pictures don't show it being used with a hose, but if it doesn't
have enough pressure to get it through the hose, then skip the hose and
just blow from the machine to the engine. You can put the machine on a
chair or stepladder if need be. You can hold it closer to the engine
if need be.

The pictures show the smoke going out 3 feet or more. That seems like
enough pressure to me, and a bigger problem is likely that there is too
much smoke. Is that why you want to use a hose? If there's too much,
cut a hole in a big piece of paper near the engine so that only so much
can get through the hole. It's not like you have to do this for 50,000
miles, only long enough to find the vacuum leak.

The "wired control" might even be useful for one-man operation while
debugging a vaccum leak on an engine.

The machine holds 0.5 liters (1/8 gallon) where a gallon of the fog juice
(propylene glycol perhaps?) is $20 which means the machine, over time, is
cheaper than the fluid used to make the smoke!
https://www.amazon.com/Gallon-Great-Party-Fog-Machines/dp/B005UQPPK4/ref=pd_sim_267_1/135-2052768-3676406

So I do agree, for forty something bucks, it's about the same cost as what
it cost me to make that tin-can smoke machine that didn't work.
https://www.turboimagehost.com/p/368...moke1.jpg.html

Any idea how to calculate the PSI out from the 2000CFM spec?

No.


Typically, fog is created by vaporizing proprietary water and
glycol-based or glycerin-based fluids or through the atomization of
mineral oil. This fluid (often referred to colloquially as fog juice)
vaporizes or atomizes inside the fog machine.
https://en.wikipedia.org/wiki/Fog_machine

[TimR[_2_]]

On Friday, December 15, 2017 at 10:23:04 AM UTC-5, Phil Hobbs wrote:
On 12/15/2017 10:14 AM, Arthur Wood wrote:
All we need to find vacuum leaks in a complex engine is a smoke machine
that works. All it needs to do is...
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

We made a smoke machine to work on a friend's kid's old bimmer but the
smoke machine we made failed to generate enough smoke. And now I need a
smoke machine.
https://www.turboimagehost.com/p/368...moke2.jpg.html

It seems so simple, and yes, we've seen the "cigar in a can" and "burning
rags in a can" videos but they all have problems of not generating enough
smoke for a long enough period of time.

Our machine generates smoke for a long time but not enough smoke!
https://www.turboimagehost.com/p/368...moke7.jpg.html

It's 3 holes in a new paint can with glycerin in a soup can inside.
https://www.turboimagehost.com/p/368...moke3.jpg.html

The top has a 12VDC diesel glow plug which gets red hot. It is stuck into
the glycerin in a soup can. That generates the smoke.
https://www.turboimagehost.com/p/368...moke5.jpg.html

We push that smoke out regulated at about 3 psi with an air gun mounted on
the side.
https://www.turboimagehost.com/p/368...moke8.jpg.html

There's just not enough smoke.
https://www.turboimagehost.com/p/368...moke9.jpg.html

Do you know what fluid would generate more non-sticky smoke?
Or do you know of a hundred dollar smoke machine that can do the two thing?
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

https://www.amazon.com/gp/product/B01N2XYORX

Cheers

Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
https://hobbs-eo.com

I have one that looks just like that.

We bought it for Halloween.

We tested it inside, it filled the entire basement with smoke. We were afraid the neighbors would call the fire department. Lucky we didn't have alarms there.

It has a heater, a fan, and a bottle of glycol. Pretty simple.

[trader_4]

On Friday, December 15, 2017 at 5:17:10 PM UTC-5, micky wrote:
In alt.home.repair, on Fri, 15 Dec 2017 17:46:23 -0000 (UTC), Arthur
Wood wrote:

trader_4 wrote:

https://www.amazon.com/gp/product/B01N2XYORX
That's what I was telling him about in the other thread here, that I've
heard people have used one of those disco smoke gizmos. Seems you
should be able to rig up something to pipe it in. Plus, with a boom box
and some songs, you can have a business at parties and weddings as a DJ.

I thank you for coming to my aid, and I apologize for not having "believed"
in your previous suggestion. (See below why.)

For some reason, I had thought that the "party foggers" had a big opening
at low pressure (like the size you can put your hand through) but this one
in the Amazon picture seems to have a one-inch opening with a tiny 1/4-inch
nozzle.

Is that right?

If so, I don't see why it's not perfect for the task - if it generates the
smoke at enough of a pressure to get us a couple of psi for a long period
of time. It has to be in the goldilocks range of a few psi (maybe 2 to 4
psi?).

The output is 2000 CFM, which seems like a lot.
Is there a way to *convert* that to PSI?

Why are you concerned with PSI. AIUI, you only need enough pressure to
get the smoke out of the machine, or out of the hose**. Plainly it has
that much pressure, or the machine wouldn't function for its original
purpose.

You do need enough pressure to force it through wherever you inject it
in the car through the whole vacuum system. I don't think you need a lot
of pressure, but it's still different than just dumping smoke out an
opening onto a floor.


After that the smoke just has to float around near the vacuum leak and
the vacuum will suck it into the engine.

That isn't how it works. You're pumping it into the vacuum system of
the car and looking for where it comes out. But the other alternative
is an interesting possibility too.

[trader_4]

On Friday, December 15, 2017 at 6:32:12 PM UTC-5, TimR wrote:
On Friday, December 15, 2017 at 10:23:04 AM UTC-5, Phil Hobbs wrote:
On 12/15/2017 10:14 AM, Arthur Wood wrote:
All we need to find vacuum leaks in a complex engine is a smoke machine
that works. All it needs to do is...
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

We made a smoke machine to work on a friend's kid's old bimmer but the
smoke machine we made failed to generate enough smoke. And now I need a
smoke machine.
https://www.turboimagehost.com/p/368...moke2.jpg.html

It seems so simple, and yes, we've seen the "cigar in a can" and "burning
rags in a can" videos but they all have problems of not generating enough
smoke for a long enough period of time.

Our machine generates smoke for a long time but not enough smoke!
https://www.turboimagehost.com/p/368...moke7.jpg.html

It's 3 holes in a new paint can with glycerin in a soup can inside.
https://www.turboimagehost.com/p/368...moke3.jpg.html

The top has a 12VDC diesel glow plug which gets red hot. It is stuck into
the glycerin in a soup can. That generates the smoke.
https://www.turboimagehost.com/p/368...moke5.jpg.html

We push that smoke out regulated at about 3 psi with an air gun mounted on
the side.
https://www.turboimagehost.com/p/368...moke8.jpg.html

There's just not enough smoke.
https://www.turboimagehost.com/p/368...moke9.jpg.html

Do you know what fluid would generate more non-sticky smoke?
Or do you know of a hundred dollar smoke machine that can do the two thing?
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

https://www.amazon.com/gp/product/B01N2XYORX

Cheers

Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
https://hobbs-eo.com

I have one that looks just like that.

We bought it for Halloween.

We tested it inside, it filled the entire basement with smoke. We were afraid the neighbors would call the fire department. Lucky we didn't have alarms there.


Keep talking like that and I may buy one.

[trader_4]

On Friday, December 15, 2017 at 1:52:35 PM UTC-5, Tekkie® wrote:
Arthur Wood posted for all of us...



All we need to find vacuum leaks in a complex engine is a smoke machine
that works. All it needs to do is...
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

We made a smoke machine to work on a friend's kid's old bimmer but the
smoke machine we made failed to generate enough smoke. And now I need a
smoke machine.
https://www.turboimagehost.com/p/368...moke2.jpg.html

It seems so simple, and yes, we've seen the "cigar in a can" and "burning
rags in a can" videos but they all have problems of not generating enough
smoke for a long enough period of time.

Our machine generates smoke for a long time but not enough smoke!
https://www.turboimagehost.com/p/368...moke7.jpg.html

It's 3 holes in a new paint can with glycerin in a soup can inside.
https://www.turboimagehost.com/p/368...moke3.jpg.html

The top has a 12VDC diesel glow plug which gets red hot. It is stuck into
the glycerin in a soup can. That generates the smoke.
https://www.turboimagehost.com/p/368...moke5.jpg.html

We push that smoke out regulated at about 3 psi with an air gun mounted on
the side.
https://www.turboimagehost.com/p/368...moke8.jpg.html

There's just not enough smoke.
https://www.turboimagehost.com/p/368...moke9.jpg.html

Do you know what fluid would generate more non-sticky smoke?
Or do you know of a hundred dollar smoke machine that can do the two thing?
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

From reading replies you don't any research on anything before posting, then
you argue and ask more questions. Are you a previous poster under another
name?

--
Tekkie

Funny, I was wondering the same thing. Does the name start with a D?

[Clare Snyder]

On Fri, 15 Dec 2017 17:46:23 -0000 (UTC), Arthur Wood
wrote:

trader_4 wrote:

https://www.amazon.com/gp/product/B01N2XYORX
That's what I was telling him about in the other thread here, that I've
heard people have used one of those disco smoke gizmos. Seems you
should be able to rig up something to pipe it in. Plus, with a boom box
and some songs, you can have a business at parties and weddings as a DJ.

I thank you for coming to my aid, and I apologize for not having "believed"
in your previous suggestion. (See below why.)

For some reason, I had thought that the "party foggers" had a big opening
at low pressure (like the size you can put your hand through) but this one
in the Amazon picture seems to have a one-inch opening with a tiny 1/4-inch
nozzle.

Is that right?

If so, I don't see why it's not perfect for the task - if it generates the
smoke at enough of a pressure to get us a couple of psi for a long period
of time. It has to be in the goldilocks range of a few psi (maybe 2 to 4
psi?).

The output is 2000 CFM, which seems like a lot.
Is there a way to *convert* that to PSI?

The "wired control" might even be useful for one-man operation while
debugging a vaccum leak on an engine.

The machine holds 0.5 liters (1/8 gallon) where a gallon of the fog juice
(propylene glycol perhaps?) is $20 which means the machine, over time, is
cheaper than the fluid used to make the smoke!
https://www.amazon.com/Gallon-Great-Party-Fog-Machines/dp/B005UQPPK4/ref=pd_sim_267_1/135-2052768-3676406

So I do agree, for forty something bucks, it's about the same cost as what
it cost me to make that tin-can smoke machine that didn't work.
https://www.turboimagehost.com/p/368...moke1.jpg.html

Any idea how to calculate the PSI out from the 2000CFM spec?


Not really possible to be really accurate. You could determine how
much poressure is required by calculating the velocity of the fog
escaping from the nozzle size and roughly approxemate the pressure
utilized to force that flow, but that won't tell you the pressure
capability of the system. (it might put out 2000 cfm of smoke at
1/2PSI, and be capable of pumping 1000cfm at 2.5psi, for example.

[Clare Snyder]

On Fri, 15 Dec 2017 14:22:41 -0500, rickman wrote:

Arthur Woodwrote on 12/15/2017 12:46 PM:
trader_4 wrote:

https://www.amazon.com/gp/product/B01N2XYORX
That's what I was telling him about in the other thread here, that I've
heard people have used one of those disco smoke gizmos. See Hpressure but it is s you
should be able to rig up something to pipe it in. Plus, with a boom box
and some songs, you can have a business at parties and weddings as a DJ.

I thank you for coming to my aid, and I apologize for not having "believed"
in your previous suggestion. (See below why.)



They don't use a fan. They use a liquid pump to squirt the fluid
through the heater, which vapourizes , producing steam pressure. No
fan. I have onem and I've had it apart. The poressure is reasonable,
but I'd say less than 5 psi. Commercial smokemachiners run somewhere
around 1 - 2 PSI maximum.

The only olproblem I see is getting the HOT smoke (really more like
steam) into the fuel system you are testing. It will melt a plastic
hose attached to the output - so you need an adapter that acts as a
cooler as well - which WILL reduce the pressure somewhat.


If so, I don't see why it's not perfect for the task - if it generates the
smoke at enough of a pressure to get us a couple of psi for a long period
of time. It has to be in the goldilocks range of a few psi (maybe 2 to 4
psi?).

How did you come up with that number?


The output is 2000 CFM, which seems like a lot.
Is there a way to *convert* that to PSI?

Not really. Most likely they are using a fan designed to move air against
very little pressure, like the "muffin" fans in a PC. They will move a
decent volume of air at very low pressure, but the air flow falls off very
quickly as the pressure increases. The only way to know for sure is to get
the spec sheet of the fan.

Here is a spec sheet of a typical DC cooling fan.
\



http://www.nmbtc.com/content/pdfs/08015JE.pdf

Notice the flow goes to zero at pressures around 0.1 inches of H2O. Your 2
psi would be 55 inches of H2O.

Maybe they are using a different type of fan, but I don't think y

ou are
going to get 2 psi from one of these machines. Maybe you could rig your
compressor to it to boost the pressure.


The "wired control" might even be useful for one-man operation while
debugging a vaccum leak on an engine.

The machine holds 0.5 liters (1/8 gallon) where a gallon of the fog juice
(propylene glycol perhaps?) is $20 which means the machine, over time, is
cheaper than the fluid used to make the smoke!
https://www.amazon.com/Gallon-Great-Party-Fog-Machines/dp/B005UQPPK4/ref=pd_sim_267_1/135-2052768-3676406

So I do agree, for forty something bucks, it's about the same cost as what
it cost me to make that tin-can smoke machine that didn't work.
https://www.turboimagehost.com/p/368...moke1.jpg.html

The same cost for something that also isn't likely to work without
modification.

Any idea how to calculate the PSI out from the 2000CFM spec?

See above...

[Clare Snyder]

On Fri, 15 Dec 2017 17:17:05 -0500, micky
wrote:

In alt.home.repair, on Fri, 15 Dec 2017 17:46:23 -0000 (UTC), Arthur
Wood wrote:

trader_4 wrote:

https://www.amazon.com/gp/product/B01N2XYORX
That's what I was telling him about in the other thread here, that I've
heard people have used one of those disco smoke gizmos. Seems you
should be able to rig up something to pipe it in. Plus, with a boom box
and some songs, you can have a business at parties and weddings as a DJ.

I thank you for coming to my aid, and I apologize for not having "believed"
in your previous suggestion. (See below why.)

For some reason, I had thought that the "party foggers" had a big opening
at low pressure (like the size you can put your hand through) but this one
in the Amazon picture seems to have a one-inch opening with a tiny 1/4-inch
nozzle.

Is that right?

If so, I don't see why it's not perfect for the task - if it generates the
smoke at enough of a pressure to get us a couple of psi for a long period
of time. It has to be in the goldilocks range of a few psi (maybe 2 to 4
psi?).

The output is 2000 CFM, which seems like a lot.
Is there a way to *convert* that to PSI?

Why are you concerned with PSI. AIUI, you only need enough pressure to
get the smoke out of the machine, or out of the hose**. Plainly it has
that much pressure, or the machine wouldn't function for its original
purpose.

After that the smoke just has to float around near the vacuum leak and
the vacuum will suck it into the engine.

Again, you have NO IDEA what you are talking about, Micky. The smoke
is pumped INTO the system, with the engine not running - under a low
pressure to force it OUT through the leak.

If anything too much pressure would make the smoke zoom by the leak
without stopping. LOL Well, not unless it was r eally fast, you'd
still probably see some of it get waylaid and sucked into the engine

Gettin in deeper, Micky

**Or are you saying it needs enough pressure to get through the hose?
The pictures don't show it being used with a hose, but if it doesn't
have enough pressure to get it through the hose, then skip the hose and
just blow from the machine to the engine. You can put the machine on a
chair or stepladder if need be. You can hold it closer to the engine
if need be.

The pictures show the smoke going out 3 feet or more. That seems like
enough pressure to me, and a bigger problem is likely that there is too
much smoke. Is that why you want to use a hose? If there's too much,
cut a hole in a big piece of paper near the engine so that only so much
can get through the hole. It's not like you have to do this for 50,000
miles, only long enough to find the vacuum leak.

The "wired control" might even be useful for one-man operation while
debugging a vaccum leak on an engine.

The machine holds 0.5 liters (1/8 gallon) where a gallon of the fog juice
(propylene glycol perhaps?) is $20 which means the machine, over time, is
cheaper than the fluid used to make the smoke!
https://www.amazon.com/Gallon-Great-Party-Fog-Machines/dp/B005UQPPK4/ref=pd_sim_267_1/135-2052768-3676406

So I do agree, for forty something bucks, it's about the same cost as what
it cost me to make that tin-can smoke machine that didn't work.
https://www.turboimagehost.com/p/368...moke1.jpg.html

Any idea how to calculate the PSI out from the 2000CFM spec?

No.


Typically, fog is created by vaporizing proprietary water and
glycol-based or glycerin-based fluids or through the atomization of
mineral oil. This fluid (often referred to colloquially as fog juice)
vaporizes or atomizes inside the fog machine.
https://en.wikipedia.org/wiki/Fog_machine

[Clare Snyder]

On Fri, 15 Dec 2017 15:32:04 -0800 (PST), TimR
wrote:

On Friday, December 15, 2017 at 10:23:04 AM UTC-5, Phil Hobbs wrote:
On 12/15/2017 10:14 AM, Arthur Wood wrote:
All we need to find vacuum leaks in a complex engine is a smoke machine
that works. All it needs to do is...
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

We made a smoke machine to work on a friend's kid's old bimmer but the
smoke machine we made failed to generate enough smoke. And now I need a
smoke machine.
https://www.turboimagehost.com/p/368...moke2.jpg.html

It seems so simple, and yes, we've seen the "cigar in a can" and "burning
rags in a can" videos but they all have problems of not generating enough
smoke for a long enough period of time.

Our machine generates smoke for a long time but not enough smoke!
https://www.turboimagehost.com/p/368...moke7.jpg.html

It's 3 holes in a new paint can with glycerin in a soup can inside.
https://www.turboimagehost.com/p/368...moke3.jpg.html

The top has a 12VDC diesel glow plug which gets red hot. It is stuck into
the glycerin in a soup can. That generates the smoke.
https://www.turboimagehost.com/p/368...moke5.jpg.html

We push that smoke out regulated at about 3 psi with an air gun mounted on
the side.
https://www.turboimagehost.com/p/368...moke8.jpg.html

There's just not enough smoke.
https://www.turboimagehost.com/p/368...moke9.jpg.html

Do you know what fluid would generate more non-sticky smoke?
Or do you know of a hundred dollar smoke machine that can do the two thing?
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

https://www.amazon.com/gp/product/B01N2XYORX

Cheers

Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
https://hobbs-eo.com

I have one that looks just like that.

We bought it for Halloween.

We tested it inside, it filled the entire basement with smoke. We were afraid the neighbors would call the fire department. Lucky we didn't have alarms there.

It has a heater, a fan, and a bottle of glycol. Pretty simple.
A fluid pump - no fan. Look again. The heater heats up to the
required pressure, turning on the "ready" light. Pressing the switch
turns onthe pump, forcing the fluid through a heated nozzle, creating
smoke which billows out under it's own pressure. No air is added.No
fan is used. At least not in the one's I've had apart and the one I
own. (a pretty standard unit)

[Clare Snyder]

On Fri, 15 Dec 2017 13:52:41 -0500, Tekkie®
wrote:

Arthur Wood posted for all of us...



All we need to find vacuum leaks in a complex engine is a smoke machine
that works. All it needs to do is...
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

We made a smoke machine to work on a friend's kid's old bimmer but the
smoke machine we made failed to generate enough smoke. And now I need a
smoke machine.
https://www.turboimagehost.com/p/368...moke2.jpg.html

It seems so simple, and yes, we've seen the "cigar in a can" and "burning
rags in a can" videos but they all have problems of not generating enough
smoke for a long enough period of time.

Our machine generates smoke for a long time but not enough smoke!
https://www.turboimagehost.com/p/368...moke7.jpg.html

It's 3 holes in a new paint can with glycerin in a soup can inside.
https://www.turboimagehost.com/p/368...moke3.jpg.html

The top has a 12VDC diesel glow plug which gets red hot. It is stuck into
the glycerin in a soup can. That generates the smoke.
https://www.turboimagehost.com/p/368...moke5.jpg.html

We push that smoke out regulated at about 3 psi with an air gun mounted on
the side.
https://www.turboimagehost.com/p/368...moke8.jpg.html

There's just not enough smoke.
https://www.turboimagehost.com/p/368...moke9.jpg.html

Do you know what fluid would generate more non-sticky smoke?
Or do you know of a hundred dollar smoke machine that can do the two thing?
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

From reading replies you don't any research on anything before posting, then
you argue and ask more questions. Are you a previous poster under another
name?
You thinking the same guy that argued about tire mounting and
ballancing???

My thought too. Mabee his twin brother from a different mother???

[trader_4]

On Friday, December 15, 2017 at 7:48:27 PM UTC-5, Clare Snyder wrote:
On Fri, 15 Dec 2017 14:22:41 -0500, rickman wrote:

Arthur Woodwrote on 12/15/2017 12:46 PM:
trader_4 wrote:

https://www.amazon.com/gp/product/B01N2XYORX
That's what I was telling him about in the other thread here, that I've
heard people have used one of those disco smoke gizmos. See Hpressure but it is s you
should be able to rig up something to pipe it in. Plus, with a boom box
and some songs, you can have a business at parties and weddings as a DJ.

I thank you for coming to my aid, and I apologize for not having "believed"
in your previous suggestion. (See below why.)



They don't use a fan. They use a liquid pump to squirt the fluid
through the heater, which vapourizes , producing steam pressure. No
fan. I have onem and I've had it apart. The poressure is reasonable,
but I'd say less than 5 psi. Commercial smokemachiners run somewhere
around 1 - 2 PSI maximum.

The only olproblem I see is getting the HOT smoke (really more like
steam) into the fuel system you are testing. It will melt a plastic
hose attached to the output - so you need an adapter that acts as a
cooler as well - which WILL reduce the pressure somewhat.


If so, I don't see why it's not perfect for the task - if it generates the
smoke at enough of a pressure to get us a couple of psi for a long period
of time. It has to be in the goldilocks range of a few psi (maybe 2 to 4
psi?).

How did you come up with that number?


The output is 2000 CFM, which seems like a lot.
Is there a way to *convert* that to PSI?

Not really. Most likely they are using a fan designed to move air against
very little pressure, like the "muffin" fans in a PC. They will move a
decent volume of air at very low pressure, but the air flow falls off very
quickly as the pressure increases. The only way to know for sure is to get
the spec sheet of the fan.

Here is a spec sheet of a typical DC cooling fan.
\



http://www.nmbtc.com/content/pdfs/08015JE.pdf

Notice the flow goes to zero at pressures around 0.1 inches of H2O. Your 2
psi would be 55 inches of H2O.

Maybe they are using a different type of fan, but I don't think y

ou are
going to get 2 psi from one of these machines. Maybe you could rig your
compressor to it to boost the pressure.


The "wired control" might even be useful for one-man operation while
debugging a vaccum leak on an engine.

The machine holds 0.5 liters (1/8 gallon) where a gallon of the fog juice
(propylene glycol perhaps?) is $20 which means the machine, over time, is
cheaper than the fluid used to make the smoke!
https://www.amazon.com/Gallon-Great-Party-Fog-Machines/dp/B005UQPPK4/ref=pd_sim_267_1/135-2052768-3676406

So I do agree, for forty something bucks, it's about the same cost as what
it cost me to make that tin-can smoke machine that didn't work.
https://www.turboimagehost.com/p/368...moke1.jpg.html

The same cost for something that also isn't likely to work without
modification.

Any idea how to calculate the PSI out from the 2000CFM spec?

See above...

Hard to imagine that these things inject hot steam level smoke that
can melt car components onto a dance floor.
Just sayin........

[trader_4]

On Friday, December 15, 2017 at 7:51:31 PM UTC-5, Clare Snyder wrote:
On Fri, 15 Dec 2017 17:17:05 -0500, micky
wrote:

In alt.home.repair, on Fri, 15 Dec 2017 17:46:23 -0000 (UTC), Arthur
Wood wrote:

trader_4 wrote:

https://www.amazon.com/gp/product/B01N2XYORX
That's what I was telling him about in the other thread here, that I've
heard people have used one of those disco smoke gizmos. Seems you
should be able to rig up something to pipe it in. Plus, with a boom box
and some songs, you can have a business at parties and weddings as a DJ.

I thank you for coming to my aid, and I apologize for not having "believed"
in your previous suggestion. (See below why.)

For some reason, I had thought that the "party foggers" had a big opening
at low pressure (like the size you can put your hand through) but this one
in the Amazon picture seems to have a one-inch opening with a tiny 1/4-inch
nozzle.

Is that right?

If so, I don't see why it's not perfect for the task - if it generates the
smoke at enough of a pressure to get us a couple of psi for a long period
of time. It has to be in the goldilocks range of a few psi (maybe 2 to 4
psi?).

The output is 2000 CFM, which seems like a lot.
Is there a way to *convert* that to PSI?

Why are you concerned with PSI. AIUI, you only need enough pressure to
get the smoke out of the machine, or out of the hose**. Plainly it has
that much pressure, or the machine wouldn't function for its original
purpose.

After that the smoke just has to float around near the vacuum leak and
the vacuum will suck it into the engine.

Again, you have NO IDEA what you are talking about, Micky. The smoke
is pumped INTO the system, with the engine not running - under a low
pressure to force it OUT through the leak.

If anything too much pressure would make the smoke zoom by the leak
without stopping. LOL Well, not unless it was r eally fast, you'd
still probably see some of it get waylaid and sucked into the engine

Gettin in deeper, Micky

**Or are you saying it needs enough pressure to get through the hose?
The pictures don't show it being used with a hose, but if it doesn't
have enough pressure to get it through the hose, then skip the hose and
just blow from the machine to the engine. You can put the machine on a
chair or stepladder if need be. You can hold it closer to the engine
if need be.

The pictures show the smoke going out 3 feet or more. That seems like
enough pressure to me, and a bigger problem is likely that there is too
much smoke. Is that why you want to use a hose? If there's too much,
cut a hole in a big piece of paper near the engine so that only so much
can get through the hole. It's not like you have to do this for 50,000
miles, only long enough to find the vacuum leak.

The "wired control" might even be useful for one-man operation while
debugging a vaccum leak on an engine.

The machine holds 0.5 liters (1/8 gallon) where a gallon of the fog juice
(propylene glycol perhaps?) is $20 which means the machine, over time, is
cheaper than the fluid used to make the smoke!
https://www.amazon.com/Gallon-Great-Party-Fog-Machines/dp/B005UQPPK4/ref=pd_sim_267_1/135-2052768-3676406

So I do agree, for forty something bucks, it's about the same cost as what
it cost me to make that tin-can smoke machine that didn't work.
https://www.turboimagehost.com/p/368...moke1.jpg.html

Any idea how to calculate the PSI out from the 2000CFM spec?

No.


Typically, fog is created by vaporizing proprietary water and
glycol-based or glycerin-based fluids or through the atomization of
mineral oil. This fluid (often referred to colloquially as fog juice)
vaporizes or atomizes inside the fog machine.
https://en.wikipedia.org/wiki/Fog_machine

Uh oh, Micky, I don't think Clare likes you.....

Watch out, he'll have you in his blocked bucket next.

[Scott Dorsey]

Clare Snyder wrote:
Again, you have NO IDEA what you are talking about, Micky. The smoke
is pumped INTO the system, with the engine not running - under a low
pressure to force it OUT through the leak.

I have seen people do it manually. They take a big puff on the cigar
and blow into a piece of vacuum hose. It works okay if you have good
enough side-lighting that you can see where the smoke is coming out.
--scott


--
"C'est un Nagra. C'est suisse, et tres, tres precis."

[micky]

In alt.home.repair, on Fri, 15 Dec 2017 17:00:37 -0800 (PST), trader_4
wrote:

On Friday, December 15, 2017 at 7:51:31 PM UTC-5, Clare Snyder wrote:
On Fri, 15 Dec 2017 17:17:05 -0500, micky
wrote:

In alt.home.repair, on Fri, 15 Dec 2017 17:46:23 -0000 (UTC), Arthur
Wood wrote:

trader_4 wrote:

https://www.amazon.com/gp/product/B01N2XYORX
That's what I was telling him about in the other thread here, that I've
heard people have used one of those disco smoke gizmos. Seems you
should be able to rig up something to pipe it in. Plus, with a boom box
and some songs, you can have a business at parties and weddings as a DJ.

I thank you for coming to my aid, and I apologize for not having "believed"
in your previous suggestion. (See below why.)

For some reason, I had thought that the "party foggers" had a big opening
at low pressure (like the size you can put your hand through) but this one
in the Amazon picture seems to have a one-inch opening with a tiny 1/4-inch
nozzle.

Is that right?

If so, I don't see why it's not perfect for the task - if it generates the
smoke at enough of a pressure to get us a couple of psi for a long period
of time. It has to be in the goldilocks range of a few psi (maybe 2 to 4
psi?).

The output is 2000 CFM, which seems like a lot.
Is there a way to *convert* that to PSI?

Why are you concerned with PSI. AIUI, you only need enough pressure to
get the smoke out of the machine, or out of the hose**. Plainly it has
that much pressure, or the machine wouldn't function for its original
purpose.

After that the smoke just has to float around near the vacuum leak and
the vacuum will suck it into the engine.

Again, you have NO IDEA what you are talking about, Micky. The smoke
is pumped INTO the system, with the engine not running - under a low
pressure to force it OUT through the leak.

If anything too much pressure would make the smoke zoom by the leak
without stopping. LOL Well, not unless it was r eally fast, you'd
still probably see some of it get waylaid and sucked into the engine

Gettin in deeper, Micky

**Or are you saying it needs enough pressure to get through the hose?
The pictures don't show it being used with a hose, but if it doesn't
have enough pressure to get it through the hose, then skip the hose and
just blow from the machine to the engine. You can put the machine on a
chair or stepladder if need be. You can hold it closer to the engine
if need be.

The pictures show the smoke going out 3 feet or more. That seems like
enough pressure to me, and a bigger problem is likely that there is too
much smoke. Is that why you want to use a hose? If there's too much,
cut a hole in a big piece of paper near the engine so that only so much
can get through the hole. It's not like you have to do this for 50,000
miles, only long enough to find the vacuum leak.

The "wired control" might even be useful for one-man operation while
debugging a vaccum leak on an engine.

The machine holds 0.5 liters (1/8 gallon) where a gallon of the fog juice
(propylene glycol perhaps?) is $20 which means the machine, over time, is
cheaper than the fluid used to make the smoke!
https://www.amazon.com/Gallon-Great-Party-Fog-Machines/dp/B005UQPPK4/ref=pd_sim_267_1/135-2052768-3676406

So I do agree, for forty something bucks, it's about the same cost as what
it cost me to make that tin-can smoke machine that didn't work.
https://www.turboimagehost.com/p/368...moke1.jpg.html

Any idea how to calculate the PSI out from the 2000CFM spec?

No.


Typically, fog is created by vaporizing proprietary water and
glycol-based or glycerin-based fluids or through the atomization of
mineral oil. This fluid (often referred to colloquially as fog juice)
vaporizes or atomizes inside the fog machine.
https://en.wikipedia.org/wiki/Fog_machine

Uh oh, Micky, I don't think Clare likes you.....

He and I have been over that, remember? But at least he pointed out
that the engine wasn't running. Neither you nor the video I watched a
couple months ago about how to built one's own mentioned that.

Watch out, he'll have you in his blocked bucket next.

[Steve W.[_4_]]

Arthur Wood wrote:
All we need to find vacuum leaks in a complex engine is a smoke machine
that works. All it needs to do is...
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.

We made a smoke machine to work on a friend's kid's old bimmer but the
smoke machine we made failed to generate enough smoke. And now I need a
smoke machine.
https://www.turboimagehost.com/p/368...moke2.jpg.html

It seems so simple, and yes, we've seen the "cigar in a can" and "burning
rags in a can" videos but they all have problems of not generating enough
smoke for a long enough period of time.

Our machine generates smoke for a long time but not enough smoke!
https://www.turboimagehost.com/p/368...moke7.jpg.html

It's 3 holes in a new paint can with glycerin in a soup can inside.
https://www.turboimagehost.com/p/368...moke3.jpg.html

The top has a 12VDC diesel glow plug which gets red hot. It is stuck into
the glycerin in a soup can. That generates the smoke.
https://www.turboimagehost.com/p/368...moke5.jpg.html

We push that smoke out regulated at about 3 psi with an air gun mounted on
the side.
https://www.turboimagehost.com/p/368...moke8.jpg.html

There's just not enough smoke.
https://www.turboimagehost.com/p/368...moke9.jpg.html

Do you know what fluid would generate more non-sticky smoke?
Or do you know of a hundred dollar smoke machine that can do the two thing?
a. Emit lots of smoke that won't clog up an engine when it condenses, and,
b. Constantly push that smoke at a couple of psi for about a half hour.


First lose the glow plug, more smoke = more surface area for the oil to
cook on.
I built a paint can unit as a demo, generates a LOT of smoke, more than
my Snap-On unit does.

Used nichrome wire wrapped around fiberglass tiki wicks. Wound a total
of 4 coils. Two are in series and then those are in parallel with the
other 2, gives you a LOT of surface area and uses under 12 amps of 12
volt current.

Next a common propane regulator. You do not want high PSI in the system,
REAL easy to damage parts that cannot handle pressure. The propane
regulator can take 90-200 psi and drop it to under 1/2 psi (11-12 inches
of water column, OEM smoke machine standard is no higher than 13 in/wc)

Made an air bar that puts the air out in a nice even ring.

Made a low pressure check valve on the output, that way you can shut
down the machine with it attached and it won't pull fuel vapor back in.

And a flow meter and adjustable flow so you can tell what is actually
going on.

Basically a home built version of a red line unit.

--
Steve W.

[=?iso-8859-15?Q?Tekkie=AE?=]

Clare Snyder posted for all of us...



On Fri, 15 Dec 2017 13:52:41 -0500, Tekkie®
wrote:
You thinking the same guy that argued about tire mounting and
ballancing???

My thought too. Mabee his twin brother from a different mother???

Yup

--
Tekkie

[=?iso-8859-15?Q?Tekkie=AE?=]

trader_4 posted for all of us...



Funny, I was wondering the same thing. Does the name start with a D?

D does not sound familiar but then again my memory is bad. I thought it
started with a P and mutated.

--
Tekkie

[=?iso-8859-15?Q?Tekkie=AE?=]

posted for all of us...

Any idea how to calculate the PSI out from the 2000CFM spec?
You can calculate the PSI if you know the viscosity of the fluid and
the size of the orifice the fluid has to pass through. So you will
need to guess at the size of the orifice on the party smoke machine
and then look online for about 5 minutes to find a page that will let
you just plug the numbers in. I am pretty sure that searching for a
"conversions" web site will provide you with a solution. Why do you
need 2 to 4 PSI?
Eric

This mutant original poster (not you) doesn't do any research so when you
used that word it is out of his league.

--
Tekkie