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| | | | Joined: Apr 2005 Posts: 926 Shop Shark | | Shop Shark Joined: Apr 2005 Posts: 926 | Hi all;
Does anybody make the mount and an accompanying crank pulley to install an Air Conditioner compressor to a GMC six? I'm hoping to convert an A/C compressor to on-board-air use on my '54 GMC 2 ton w/302,similar to the set up I have on my Bronco II. Main difference is on the B-II I just used the pump and brackets from my parts rig-that made it a bolt-on. This one's a little harder.
Speed | | | | | Joined: Dec 2004 Posts: 1,897 Shop Shark | | Shop Shark Joined: Dec 2004 Posts: 1,897 | Many 302s had air compressors bolted to them from the factory. Look at Memphis equipment, craigslist, and ebay. Most guys using the 302s pull all the truck stuff off them. | | | | | Joined: Apr 2005 Posts: 926 Shop Shark | | Shop Shark Joined: Apr 2005 Posts: 926 | I had 2 of 'em available last Summer,but missed out due to no $$. That's part of why I'm going this route;I already have everything to do the job,with several of some parts. Just need one bracket and one pulley. I especially like my set up because the compressor's controlled electrically. The compressor pulley free-wheels until air pressure drops to 90#,then it kicks in,pumps like crazy until it reaches 125#,then it kicks out. No compressor drag when it's not needed. HOWEVER-if I find a complete air system I can afford,I'd gladly go that route. BTW-what do the factory compressors use for lube and cooling? My set up uses 4 oz. of synthetic 0W-20 and really doesn't need a cooling system since it only runs when needed,for 1-1/2 or 2 minutes at a time.
Speed
| | | | | Joined: Jun 2003 Posts: 565 'Bolter | | 'Bolter Joined: Jun 2003 Posts: 565 | The lubricant in an a/c system circulates with the refrigerant. I think an a/c compressor might pump any lubricating oil out with your application. Plus they are not designed to compress air. And they rely on the circulating refrigerant for cooling.
But I've been wrong before. I am more familiar with household a/c.
"Do not walk behind me, for I may not lead. Do not walk ahead of me, for I may not follow. Do not walk beside me either. Just leave me alone, you're starting to freak me out."
1957 GMC 150
| | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | It's been done before with the AC compresors. http://www.jedi.com/obiwan/jeep/yorkair.htmlI still think a real air compressor makes more sense, and they were designed to do exactly what you're asking of them... Grigg | | | | | Joined: Apr 2005 Posts: 2,832 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,832 | A friend of mine has a salvage yard and has used a/c compressors for air supply on his trucks and forklifts for years but he uses the square York (usually found on old Fords) or Chrysler "V" type since both has it's own oil supply. I don't think the round rotary type would hold up long since it's lube is in the freon. He uses a large fuel filter on the suction side to keep the grit out.
Evan
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