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post #31 of 79 Old 05-05-2008, 05:40 PM
DonAltman3
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probably a dumb question but....

I wonder if somehow you could just modify the stock smog pump into an air compressor. Maybe put a swich to devert the air into a tank you could do while ideling or something.. then switch the valve back and it operae as normal.. you could just fill a tank up as you needed.

Maybe it has been attempted or even done.. I am not sure.. I'm just thinking out loud.

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post #32 of 79 Old 05-05-2008, 08:34 PM
arctichalo
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With a 350 SBC, we tried OBA with the GM air conditioner compressor (2x) (Hamilton if I remember correctly). After learning they are lubed by freon (and killed both within momemnts of the tryout), we searched around the junkyards for a York, around $20 or so. With all the extras (toggle switch, wiring, separator, check valve, regulator, brass, lines, etc), and some fab work to mount and plumb for the sepentine, we have around $150 invested. We used the rear bumper for a hold tank, ran the line through the body and made a control manifold for it inside the old glove box hole. It charges to 100 psi in less than a minute while in use, so we don't complain. It is mounted to handle severe trail use, and in a year or so of use, we have had no problems with the system. We use it for swapping / inflating tires mostly. Air tools for trail fixes when needed.
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post #33 of 79 Old 05-06-2008, 08:51 AM
j33pman
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Quote:
Originally Posted by DonAltman3 View Post
I wonder if somehow you could just modify the stock smog pump into an air compressor. Maybe put a swich to devert the air into a tank you could do while ideling or something.. then switch the valve back and it operae as normal.. you could just fill a tank up as you needed.

Maybe it has been attempted or even done.. I am not sure.. I'm just thinking out loud.

I have actually thought about it before, but I don't think they can build enough pressure to be useful at all, but I'm not 100% on this.

Maybe JeepHammer would know?

Bill H. - 1984 CJ-7
Now with Fiberglass!
My Rebuild thread
http://www.schohariecountyjeepclub.org
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post #34 of 79 Old 05-06-2008, 12:27 PM
DonAltman3
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Yeah

Although my front bumper looks a bit ugly, it is functional.

Mine holds enough air to fully inflate the 4 tires that are on it.
I put a quick connect air fitting with a gauge and on it.. I make sure to pump it up before I leave but honestly its probably not a great idea for everyone to be driving with an air tank under pressure. I used 1/4 inch thick 3x5 inch tubing and it is welded directly onto the frame.
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post #35 of 79 Old 05-10-2008, 10:09 AM
nichols077
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Where can I find an electric air compressor? Iv searched and searched but all i can find is the portable rechargeable ones.
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post #36 of 79 Old 05-10-2008, 05:52 PM
mike_dippert
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Viair - they sell both portable and hardmounted compressors
Extreme Outback - same type a deal as viair
some ppl have a Puma brand compressor, but I can only find an industrial site by that name so i don't know where they come from

4wd.com sells Viair kits, w/ everything you need.
http://www.4wd.com/jeep-parts.aspx?plID=867
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post #37 of 79 Old 05-10-2008, 09:44 PM
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thanks man
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post #38 of 79 Old 05-16-2008, 06:58 PM
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Does any one have a source for the small switches? I would like to get one for my system but don't know what part # or source. I don't want the regular air compressor switch. It looks to booty fab. A simple Air Conditioner switch from an automotive system would be perfect, but I don't know what cars had what psi high side switch.
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post #39 of 79 Old 05-16-2008, 09:23 PM
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Quote:
Originally Posted by Mudbuggy View Post
Does any one have a source for the small switches? I would like to get one for my system but don't know what part # or source. I don't want the regular air compressor switch. It looks to booty fab. A simple Air Conditioner switch from an automotive system would be perfect, but I don't know what cars had what psi high side switch.
you are referring to the pressure switch? if so, i'm also interested in a source, besides kilby ($40 is a lil steep)

pic of what I'm talking about (from kilby's site)
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post #40 of 79 Old 05-18-2008, 06:09 PM
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OK I have searched and found that you can get other switches. These switches run about 20 bucks retail. I don't know how killby says buy direct and save! they are way steep. I googled MP# 24551. It seems to be the right thing.I can't remember the settings of it off the top of my head, but I did look at the specs and they seemed about right.
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post #41 of 79 Old 05-21-2008, 12:00 AM
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i found another source for the smaller style pressure switches
http://suicidedoors.com/AirManagemen...reSwitches.php
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post #42 of 79 Old 06-12-2008, 11:36 AM
duffer
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Pressure switches

A response to JeepHammer's condemnation of "pump type" pressure switches is in order. First, the one shown in his jpg does look pretty mickymouse. That said, Square D pressure switches of this type are OEM on a lot of shop air compressers and there are at least a dozen different configerations available for a wide range of pressures and differentials (and they do not give a damn if the media is water or air). I have been using a 100-200 lb version with a 20 lb differential for some time with a 10" York with absolutely no problems. It is currently set to start @ 120 and off @ 140, with a 150 lb safety. The advantage of these switches is that you can set the off/on any place you want within seconds and if you want to spend about $55, you can even get one that you can set the width of the differential range. As for the AC vs DC, I will wager a bet the contacts on these switches will stand far more than any of the "canned" DC versions. Some of the Square D versions are rated to 15 amps @ 220 DC! The only downside to these is that they are not sealed units, and if submerged, most certainly will short. I mounted mine right below the top of the hood and plugged the conduit openings with tight fitting pannel plugs. If you are planning to do a bit of snorkeling, a tube of silicone would do the seal job, but then you would have to remove the gunk to do any adjustments.

Another tidbit: I use a line regulator also, but fitted it with male and female quick connects and just pop it between the hose and bumper outlets. I suppose you could also use it right at the chuck, but it would be a little awkward.
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post #43 of 79 Old 06-16-2008, 12:11 PM
cwajciec
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I have had GREAT luck with Seige Engineering for tanks, switches, etc... They run air horns, air suspension, and also OBA.

See below on EBAY. Switches for $12. I have their tank and switch and it has worked for the past year.

http://stores.ebay.com/Siege-Engineering-Equipment

I have a slight oil blowby issue, but I just drain the tank after hard use and refill the crank. I have seen very little oil in the actual air line to the tires. It seems to separate in the tank.
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post #44 of 79 Old 06-25-2008, 05:02 AM
Mudbuggy
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Seems EBAY is the place to go for the switch. I searched air horn switch and it pulled up a few of these small switches. Thanks!
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post #45 of 79 Old 07-03-2008, 07:50 PM
Mudbuggy
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I gave suicide doors a try. I ordered ever thing I needed and it should be here next week. The switch was a couple bucks more, but they had all the DOT air lines and fittings. Seems like a one stop shop. I like it. Thanks!
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