Turning AC unit into an Air Compressor? - Pirate4x4.Com : 4x4 and Off-Road Forum

74 PowerWagon · 02-05-2002, 10:58 AM

I have a buddy who has offered me an old air conditioning pump that he is using for a door stop. It looks to be in good condition but I have no clue what it came off of or anything else about it. My question is what should I look for on this AC pump to turn it into an onboard air compressor to fit on my Power Wagon? And what is involved in this conversion? I would love to here the sound of my impact wrench in the middle of nowhere.
Any ideas?

Pavemen · 02-05-2002, 01:26 PM

Normally the R134 or R12 coolant in the a/c unit will keep it oiled. Since you won't be using that, you will have to add a pre-oiler before and then a oil separator after the unit.

You can also find converted a/c units that have greasable bearings and such to use instead.

geberhard · 02-06-2002, 09:35 PM

I setup my onboard air with an AC compressor. I posted some pics and diagram here. It is very straight forward and it came out as an awesome setup. Definitely usefull for powertools on the trail or garage:

http://www.geocities.com/guieberhard...negadeair.html

here is a diagram I developed on top of Jon's previous setup:

http://www.geocities.com/guieberhard...rdair_carb.jpg

74 PowerWagon · 02-07-2002, 12:56 PM

Hey thanks alot, those web pages help out alot, It looks like on your setup you have a preoiler, where do you get one? And how does the oil stay out of the air lines?

02-05-2002, 10:58 AM	#1 (permalink)
74 PowerWagon Registered User Join Date: Jan 2002 Member # 9580 Location: Alamosa CO Posts: 13	Turning AC unit into an Air Compressor? I have a buddy who has offered me an old air conditioning pump that he is using for a door stop. It looks to be in good condition but I have no clue what it came off of or anything else about it. My question is what should I look for on this AC pump to turn it into an onboard air compressor to fit on my Power Wagon? And what is involved in this conversion? I would love to here the sound of my impact wrench in the middle of nowhere. Any ideas?

02-05-2002, 01:26 PM	#2 (permalink)
Pavemen Registered User Join Date: Jul 2001 Member # 5670 Location: Modesto, CA Posts: 1,789	Normally the R134 or R12 coolant in the a/c unit will keep it oiled. Since you won't be using that, you will have to add a pre-oiler before and then a oil separator after the unit. You can also find converted a/c units that have greasable bearings and such to use instead. __________________ Nothing to see here, move along

02-06-2002, 09:35 PM	#3 (permalink)
geberhard Moderator Join Date: Jul 2001 Member # 5861 Location: California Posts: 8,491	I setup my onboard air with an AC compressor. I posted some pics and diagram here. It is very straight forward and it came out as an awesome setup. Definitely usefull for powertools on the trail or garage: http://www.geocities.com/guieberhard...negadeair.html here is a diagram I developed on top of Jon's previous setup: http://www.geocities.com/guieberhard...rdair_carb.jpg __________________ Help us cure kids cancer! Shave for the cause :) Tips on how to build your Jeep bigger! New build, daily driver TJ on 44" rubbers Project hot 40 year old

02-07-2002, 12:56 PM	#4 (permalink)
74 PowerWagon Registered User Join Date: Jan 2002 Member # 9580 Location: Alamosa CO Posts: 13	Web sites Hey thanks alot, those web pages help out alot, It looks like on your setup you have a preoiler, where do you get one? And how does the oil stay out of the air lines?

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