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View Full Version : Operation: "Craig Air", cheap CO2.



2ndGen
03-22-2009, 05:16 PM
the Motive: cant stand for spending $300 on CO2 tank setup while i'm jobless.
the Mission: put together a capable system for less than $75
i got all the pieces either from Craig's list or Harbor Freight, except for the pressure gauge.

parts list:
1.) CO2 tank, $30 off craig's list, there were shat load of them floating after spring break, the one i got is almost full.

2.) Victor SR5B innert gas regulator, $10 off craiglist, it's was an $150 unit but no gauges, no inlet plug. the key feature is the large gas passage bores won't freeze up, the cheapo $60 Harris regultor(Airgas carries them) won't work.

3.) air hose, $5 HF, 20ft coil.

4.) couplers, $6 total, $3 each push-button Quick-Discounnect couplers from HF, one female thread, one male thread.

5.) pressure gauge: $13 from Grainger, 160psi max liquid filled, American made. that's one part i don't want to go cheap.

6.) plug: $0 i've got one. it was used to plug off the hi-pressure gauge port on the gas regulator, since CO2 is liquid unlike other gases, i don't need a hi-pressure gauge to tell me if the tank is running low. and the gas turns to liquid when reach 1500 psi, it won't exceed the designed load of the regulator. plus, the burst disk on the tank will release pressure when tank reaches 3000psi. now you know i have safety in my mind.

7.) CO2 inlet tube: $2.50 from Airgas

tire filler probe: $0, i've got one, $2 for a new one.

so far, ~$66

8.) bonus: Ingersoll Rand 231C 1/2" impact wrench, $25 off craigslist. the seller was a total drunk, sold it as parts cause it wasn't working. i cleaned it up the gunk inside and buffed off the rust with a wirewheel, it works like charm, shinny too.

here you go: totally $91, i got:

http://i172.photobucket.com/albums/w38/tonniechengca/spare/0087.jpg

http://i172.photobucket.com/albums/w38/tonniechengca/spare/0078.jpg

http://i172.photobucket.com/albums/w38/tonniechengca/spare/0084.jpg

http://i172.photobucket.com/albums/w38/tonniechengca/spare/0085.jpg

http://i172.photobucket.com/albums/w38/tonniechengca/spare/0086.jpg

i rotated all 4 tires on the wife's RAV4, took me less than 20 minutes, just perfect. now, would i pay $50+ for a vehicle mounting bracket? i guess not.

Scuba
03-22-2009, 05:26 PM
Now that I see this it makes me want to do the same with the bottle we have in the garage...

Looks good man !!


:bling:

CJM
03-22-2009, 06:06 PM
Did you do all that just to be able to use an impact on the road?

Cause I just spend a nice load on a snap on 1/2 battery impact that would blow its sock off. Not knocking you but I never saw the practicality of those c02 tanks when you can get some kinda compressor and have a battery impact for when you need it.

2ndGen
03-22-2009, 06:44 PM
i used to have a 20 gal compressor back in L. A., but it was noisey and every time i need to use it i have to let it run a bit till the pressure builds up. with a CO2 tank, it just turns on instantly. now her in Indy, the garage is so stuff, there's no way it can hold a compressor. i also have a MAC 19.2V 1/2" drive cordless impact wrench, which i have used it on Scuba's old truck in Pismo last year. it's not as nice as the $500 Snap-On honestly, i'm planning selling it if the CO2 setup works out. boy that IR impact is a beast.

4x4mike
03-22-2009, 06:48 PM
Good deal. When I was looking at building something I couldn't find everything I needed for cheap. Craigslist did have a lot of bottle but the ones in the size and price I wanted had expired or soon to be expired dates on them. Plus around here most places only fill their own bottles or make you leave them over night. For 20-25 dollars a fill I decided to go the York route.

You say you didn't want to cheap out of the gauge. Of all things why? That's probably the only thing I would have cheaped out on.

I noticed you have 2 couplers on the impact. Why? I would cut this down to one and maybe invest in a larger diameter hose. Do this and you'll have more flow not to mention IR wants that gun to have 3/8" hose.

4x4mike
03-22-2009, 06:49 PM
IR impact is a beast

I've got the 3/8" and 1/2" TiMAX impacts. They are pretty sweet and much lighter than my 231c. I haven't gotten rid of the 231 because for the money you cannot beat that impact.

CJM
03-22-2009, 07:01 PM
i used to have a 20 gal compressor back in L. A., but it was noisey and every time i need to use it i have to let it run a bit till the pressure builds up. with a CO2 tank, it just turns on instantly. now her in Indy, the garage is so stuff, there's no way it can hold a compressor. i also have a MAC 19.2V 1/2" drive cordless impact wrench, which i have used it on Scuba's old truck in Pismo last year. it's not as nice as the $500 Snap-On honestly, i'm planning selling it if the CO2 setup works out. boy that IR impact is a beast.


20 gallons, of course it was always on-your pump and tank werent large enough. 30 gallon min with 6cfm min. Course a smaller tank with a large real compressor motor (read oil lubed and belt driven) will keep a 20 gallon tank always full.

I can see the reasoning on the C02 tank tho, cheap way to get things done. I think what woulda been really cool is to find someone with a welding tank you coulda nabbed, cheap and probably larger

2ndGen
03-22-2009, 07:56 PM
You say you didn't want to cheap out of the gauge. Of all things why? That's probably the only thing I would have cheaped out on.

I noticed you have 2 couplers on the impact. Why? I would cut this down to one and maybe invest in a larger diameter hose. Do this and you'll have more flow not to mention IR wants that gun to have 3/8" hose.


the impact comes with a automotive air plug, and i'm out of indutrial plugs, all my female couplers are industrial. i used the doulbe coupler as a Automotive-Industrial adapter. i have been having this thing for a long time. these two are not interchangeable.
Automotive air plug:http://www.harborfreight.com/cpi/photos/94100-94199/94136.gif

Industrial air plug: http://www.harborfreight.com/cpi/photos/94100-94199/94149.gif

as for the gauge. good ones have stainless steel casing filled with oil, they are stronger and the liquid can damp the shock and vibration. if your gauge don't give you the correct pressure reading, it can cause all kinds of problems. i.e. your tool won't work right, got broken, putting too much pressure on the lug nuts, even it can be a safety hazard, with a line burst. remember, the tank is metal, tank valve metal, regulator body, inlet tube are all metal, they all can handle 10k psi. but after the low pressure gauge, there comes the plastic/rubber hose, the weakest link of the whole thing.

i'm only running 80psi, so 1/4" hose is plenty, cheap, easy to store.

4x4mike
03-22-2009, 10:29 PM
I like the industrial fittings although I haven't had a lot of time with the automotive ones. I buy quality brass ones because the cheap one will leak over time and I have had a few develop cracks just installing them on to a hose or tool.

Scuba
03-22-2009, 11:27 PM
Haha, That impact kinda saved our asses..I forgot about that neat thing.. :D

Cebby
03-23-2009, 05:02 AM
Is that Victor a 580 or a 320?

2ndGen
03-23-2009, 05:06 PM
Victor 580 gauge. it can be used on CO2, O2 and Argon.

4runnerchevy
03-23-2009, 05:42 PM
Did you do all that just to be able to use an impact on the road?

Cause I just spend a nice load on a snap on 1/2 battery impact that would blow its sock off. Not knocking you but I never saw the practicality of those c02 tanks when you can get some kinda compressor and have a battery impact for when you need it.


Thats a crock, when I ran my CO2, you could not beat it with your impact. I could seat a bead on a 36" tire, run an impact and die grinder, fill my tires and run my blender. Fit your impact where an air wrench can go !. Get the CFM you need from a Viair, very questionable. I would take a 20lb CO2 over a battery impact and tiny little viair anyday. 8 bucks to fill and plenty for the whole crew on a weekend run.

My 2 cents, after using one for ten + years.

CJM
03-23-2009, 08:31 PM
Thats a crock, when I ran my CO2, you could not beat it with your impact. I could seat a bead on a 36" tire, run an impact and die grinder, fill my tires and run my blender. Fit your impact where an air wrench can go !. Get the CFM you need from a Viair, very questionable. I would take a 20lb CO2 over a battery impact and tiny little viair anyday. 8 bucks to fill and plenty for the whole crew on a weekend run.

My 2 cents, after using one for ten + years.


I didnt plan on seating beads or running air tools out of my truck really, or running a blender lol. I mostly like it for tire changes and removing bolts and such with it.

FWIW friend of mine has a 20 gallon tank and I dont know the exact specifics of the compressor but it will run a DA for a good bit. Then again not everyone can fit it on thier truck. He has his mounted on a 26ft long flatbed along with a generator/welder setup.

It depends on the uses but I could see it coming in handy havng a tank.

2ndGen
03-24-2009, 09:11 AM
i should have taken some pictures with both mine and wife's Rav4 parked inside the garage, i'm 100% positive there is no room for a compressor. i was forced to sell my spare set of tires because there's no room indoors. even the garage is 1 stink'n foot wider or longer, i'll be good. actually, my safari roof rack is sitting in one of the bedrooms because of the space issue.
http://i172.photobucket.com/albums/w38/tonniechengca/road/_IMG0254.jpg

CJM
03-24-2009, 09:42 AM
Park your truck/wifes outside?

2ndGen
03-24-2009, 10:04 AM
nope, the HOA is on my butt for doing that for the first couple months i moved here, the rule is residents have to fill their garage parking spaces before they can park outside, driveway or curb side. see the lawn mower on the right? i have to keep it in the garage, too because i am NOT allowed to have a tool shed outside or in the back of my own yard, unless it's structurly connected to the house. i even have to keep the trash bin inside.

CJM
03-24-2009, 10:11 AM
Ah, I hate those HOA things..worst idea ever. Yea it keeps everyones house good looking, but at the price of them being practically nazis if you leave the trash can outside.

Sorry man..

garrett
03-24-2009, 04:08 PM
i should have taken some pictures with both mine and wife's Rav4 parked inside the garage, i'm 100% positive there is no room for a compressor. i was forced to sell my spare set of tires because there's no room indoors. even the garage is 1 stink'n foot wider or longer, i'll be good. actually, my safari roof rack is sitting in one of the bedrooms because of the space issue.
http://i172.photobucket.com/albums/w38/tonniechengca/road/_IMG0254.jpg


i see a ton of empty wall space.... you could get some taller shelving units

i thought our garage was full. then my dad and i brought back a table saw, jointer, planer, belt sander, router table, and drill press from my grandfather's house over Christmas break. now the garage is REALLY full. :confused:

However, it has even more floor space than before after reorganizing and adding shelving. Still fits both my parents' cars.

CJM
03-24-2009, 05:16 PM
You wouldnt even want to see mine its so bad.

Besides the 1 side being taken up by our 84 vette, and the other with my moms car, I have shelves all along the one wall, cabinets, had 2 quads (now one), snowblower, more shelves, tools, you name it.

Dude, your garage is clean.

L33T35T Tacoma
03-24-2009, 08:12 PM
Go buy a POS non-running geo metro, park that in the garage. now you have to park your truck or your wifes outside, lol. and you'll have plenty of room for that compressor

CJM
03-24-2009, 08:18 PM
Nah i got one better. Make a cardboard picture of a full garage with cars and all..hehe..

reggie 00
03-24-2009, 09:14 PM
Put the compressor outside.

You said an attached structure, Norm on the New Yankee workshop built a garden tool shed on the side of the shop on one of his shows.
Basically framed in a narrow long storage area on the side of the house nad painted it to match. Fit under the eves.

Kid down the street put his in the spare bedroom in the closet. Said it was quieter in the garage that way.

Scuba
03-24-2009, 11:10 PM
You guys dont even wanna see my garage then... :confused:

2ndGen
04-11-2009, 09:38 PM
Put the compressor outside.

I called the HOA manager, his answer on compressor was "ha ha....ha...". I don't have the $500 for one anyway.
The reason I called was the neighbor straight across the stree was broken in last Friday in the afternoon, crooks parked in the driveway, walked to the back, kicked the back franch door open, took everything they could, include 2 flat screen TV's, walked out from the frond door. I want build fences around my back yard, now. But it needs the HOA board approval, 4 weeks mininum. I have to work on a detailed plan in writing and turn them in by mail.

The impact worked great, I have to say. Got a chance to test it this afternoon, I have heard from people who replaced the 3rd gen steering rack bushings, the 2 big bolts are supposely very very tight, and indeed they are. with the CO2 cranked to 95psi, the IR 231 gun took them out just like very little effort.