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Antique ex-freon now used as air compressor seen this type?
Hi, I enjoy lurking here and liked flying because of my ex-stepfather
flew private planes and built Osprey II later crashed it of pilot's error (has three tanks, one was selected on empty.), survived with minor injuries. Anyway back to the attention on this odd compressor. I have photo of thing: http://www3.sympatico.ca/jpero/compr...compressor.jpg And poorer photo: http://www3.sympatico.ca/jpero/compressor/overall.jpg Air compressor was cobbled together decades ago using old freon compressor. Rather poorly I add. Now I'm rebuilding this compressor because of head gasket blew and a "hsss" leak from short pipe nipple, so it has to be shut down. This thing has gasket made of lead foil. (!!) That thing made big racket *CLACK CLACK CLACK*! while pumping and repeatedly cycles every hour because of this leak. So the noise is driving me up the wall. :-) It was the small end rod clattering on the wrist rods. But by jove that thing pumps up to 120PSI cut off if you wait long time, all the awhile pumping on 1 cylinder and both pistons doesn't have ring by design. Regulator is set for 50PSI. Air is used to blow off built up dust on customers' units under repair, TV, audio, TV projector etc. Have questions on that "unique" compressor if you are willing. I have many more photos of this in disassembly stages. I have tried two other newsgroups for HVAC and other one rec.crafts.metalworking with little success. Thanks & cheers, Jason (Wizard) |
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"Jason D." wrote Anyway back to the attention on this odd compressor. I have photo of thing: http://www3.sympatico.ca/jpero/compr...compressor.jpg And poorer photo: http://www3.sympatico.ca/jpero/compressor/overall.jpg Air compressor was cobbled together decades ago using old freon compressor. Rather poorly I add. Now I'm rebuilding this compressor because of head gasket blew I have tried two other newsgroups for HVAC and other one rec.crafts.metalworking with little success. Thanks & cheers, Jason (Wizard) My thinking, is that unless you can come up with a data plate from the unit, you are gong to end up having to cobble together what you need to fix it, yourself. Cobbled unit, more cobble, right? g Or bite the bullet, and go get a small oilless compressor, at a flea market or such, and pay 50 to 100 bucks to replace it. On the subject of the lengths we must sometimes go to, to keep old "stuff" running, I have a story. I have a 194? (2, I think) Gibson tractor. It looks to most people like it is home made. The trans-axle looks like the rear end came from an old pickup, but it is their own casting. I had something go wrong (input bearing failed) in the transmission, and broke 2 1/2 teeth off the sliding (spider or shuttle) gear. My choices were to try to find a gear from another junker of the same vintage, throw the whole tractor away, or find a way to fix it myself. I could not find a donor for the gear, and did not want to toss the tractor, so I made up my mind that I would do whatever I needed to do, to fix it myself. I used a wire welder, and welded, and welded and ground and welded to make sure there were no porous areas, until I had built up the gear in the area of the broken teeth with solid metal, to the full outside diameter of the missing teeth. About 3 hours, as I recall. I then sat down and made a cardboard template from the other side of the gear, and ground and ground out the built up weld, using a die grinder with a cutoff blade, until the teeth re-appeared. I used the mating gear to keep checking my progress, to get the mesh just right, by eye. Oh, this was a helical cut gear, by the way, and done with a hand held tool, and hand held workpiece. It took about 3 1/2 hours as I recall. It was not perfect, but it was serviceable. The over design factor of the gear was probably 10 times the stress the relatively small engine would ever stress the part. I did not heat treat it, other than normalize it, then do a heat up to red, and a quick oil quench. So, how set are you on making this old unit run again? g -- Jim in NC --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.794 / Virus Database: 538 - Release Date: 11/11/2004 |
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#4
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"Lennie the Lurker" wrote I have one of the oilless compressors, and find it the most irritating little prick anyone could ask for. I agree, with the noise part, but they are great for outside use, in construction, mainly trim work. Leave the little prick outside, and run the hose in a window. Jim, until you've tried to find the treadle and lower pulley for an 1890's WF&John Barnes lathe, you haven't discovered what hard to find is. (I'm still looking.) I don't know the significance of that particular part, but understand anything 1890, must be really hard, unless millions were made, and it is bulletproof. Why don't you make one. Oh, sorry you need the lathe running for that. ;-) It is good to see you are back for a while. Take care. -- Jim in NC --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.794 / Virus Database: 538 - Release Date: 11/10/2004 |
#5
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Anyone tried http://www.emachineshop.com/ for making unobtanium parts?
--- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.796 / Virus Database: 540 - Release Date: 11/13/2004 |
#6
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"Morgans" wrote in message ...
Jim, until you've tried to find the treadle and lower pulley for an 1890's WF&John Barnes lathe, you haven't discovered what hard to find is. (I'm still looking.) I don't know the significance of that particular part, but understand anything 1890, must be really hard, unless millions were made, and it is bulletproof. Why don't you make one. Oh, sorry you need the lathe running for that. ;-) The lathe was originally foot powered, could be worth a bundle if complete, scrap price if not. This one's not. That old, they don't have to be running, just complete. The treadle and pulley would increase it's value by a factor of ten. Having a lathe isn't a problem, I only have 11 now. Three not running, some of the others not in use, just stored. 11 lathes, 3 milling machines, 3 surface grinders, 6 drill presses, not much room left for me. |
#7
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How about the treadle and so on from an old sewing machine?
My Mum's old Singer is still going strong and it has heaps of control when used from slow speeds to flat out! 11 lathes, 3 milling machines, 3 surface grinders, 6 drill presses, means you will only need 23 sewing machines and a few extra for the odd extra part you need. Some of them even will have a lot of nice timberwork that could be used for other projects as well. Hope you don't have a fabric aircraft in you hanger when you pick them up 'cause it will take a month of Sundays to sort it all out! Hope this helps, Peter |
#8
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"Bushy" wrote in message ...
How about the treadle and so on from an old sewing machine? Way too light. and too small, the lower pulley, as close as I can tell is about 24 inches dieameter, almost 4 inches thick with three steps for the different belt speeds. Uses a 1"wide by 1/8" thick flat leather belt. There were more that were pedal powered than treadle, but mine is set for both, don't know which it originally had. I've seen and run a lot of Barnes drills, but this is the only Barnes lathe I've ever seen, in 44 years of machining. Nice little machine, the old machines had a charm and grace in the curves that modern manufacture doesn't. |
#9
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Man, you still lurking?!
I've been around these parts 5 years and you still pop up sometimes "Lennie the Lurker" wrote in message om... "Bushy" wrote in message ... How about the treadle and so on from an old sewing machine? Way too light. and too small, the lower pulley, as close as I can tell is about 24 inches dieameter, almost 4 inches thick with three steps for the different belt speeds. Uses a 1"wide by 1/8" thick flat leather belt. There were more that were pedal powered than treadle, but mine is set for both, don't know which it originally had. I've seen and run a lot of Barnes drills, but this is the only Barnes lathe I've ever seen, in 44 years of machining. Nice little machine, the old machines had a charm and grace in the curves that modern manufacture doesn't. |
#10
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"Fly" wrote in message ...
Man, you still lurking?! I've been around these parts 5 years and you still pop up sometimes Still here, just celebrated the third anniversary of the last time my foot stepped into a cockpit. Metalworking, machine questions, repair methods for same, no problem, I'll answer what I can. Bankruptcy by tow plane, we ain't gonna go there again. I almost opened the "Fright locker" of taking a flight this summer, but fortunately, circumstances worked in my favor, preventing me from opening that can of worms again. (Towplane down twice, prop strike on a runway light the third time, I ain't supposed to do this.) (The sound of six hours of machining time falling through crack, into deep hole in ground, hole closing behind it. Oh well.) |
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