Quincy 325 oroject

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762frmafr
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Quincy 325 oroject

Post by 762frmafr »

In my search for an air compressor, I found this Quincy 80 gallon 325 sitting behind a neighbor's barn. It is full pressure lubricated with an 80 gallon tank. Needs a motor obviously. Plan is for a Baldor l1430t. Pump turns over great and makes the "compressor noise" so I'm thinking it's gonna be ok. I also put my hand over the intake and turned it over and it does create suction. Along with motor, I plan to get a new belt new Solberg filter and new pressure switch. Hope to have it running soon. Anyone with experience with these compressors please chime in.
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acourtjester
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Re: Quincy 325 oroject

Post by acourtjester »

I had one many years ago If I remember right Quincy compressors were the only ones you could re-bore the cylinders when rebuilding it.
Looks like a great find.
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762frmafr
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Re: Quincy 325 oroject

Post by 762frmafr »

Today I drained the oil, which looked like new, and pulled the filter off. I decided to also pull of the inspection cover on the side of the pump. Just to give me a little more piece of mind as to the condition of the pump. As far as I can tell, everything is tight and how it should be. No excessive play on either end of the rods. No excessive rust in the crank case. I will be ordering all the electrical parts next week some time.
762frmafr
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Re: Quincy 325 oroject

Post by 762frmafr »

Well the compressor is up and running. It has been supplying air to my cnc plasma table for the last 4 days. I ended up with a Dayton 5hp farm duty motor... a new belt... a new motor pulley... a new 175 psi pressure switch... installed an hour meter.... made a mount for the air to air aftercooler. .. plumbed that all in... new solberg filter/silencer... and changed the oil and filter. Once I had it running for the first time, I found that the high pressure discharge valve was leaking. So I went ahead and rebuilt all 4 valves and unloader tower. I also rebuilt the hydraulic unloader and replaced the unloader piston. Fired it up again and it holds air like a champ. It takes 15 minutes from completely empty to 175psi for 200 gallons of air. I have less in the whole project than I would have on a sub par IR compressor retail. And WAY less than a new Quincy with QR25 pump. So on to the pics.
762frmafr
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Re: Quincy 325 oroject

Post by 762frmafr »

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muzza
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Re: Quincy 325 oroject

Post by muzza »

762frmafr wrote:Image
While saving valuable floor space, I would have though that hanging your compressor from the ceiling like that would cause excessive upper cylinder lubrication and even made the crankshaft run too dry. :lol: :lol: :lol:
762frmafr
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Re: Quincy 325 oroject

Post by 762frmafr »

Pressure lubrication. .. ;-) Posted the pic from my phone. It does stupid stuff sometimes.
Metriccar
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Re: Quincy 325 oroject

Post by Metriccar »

You must have an iPhone... I have one and it likes to flip images upside down:)

Great find on the 325. I know if I had one it would be a prized possession, sort of like my Gibson Les Paul.
A Quincy compressor with an oil pump should be with you for the rest of your life.
Had I not been in a hurry I'd have tried to find a used one I could buy... they're not easy to find used.
Good score.
762frmafr
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Re: Quincy 325 oroject

Post by 762frmafr »

Metriccar wrote:You must have an iPhone... I have one and it likes to flip images upside down:)

Great find on the 325. I know if I had one it would be a prized possession, sort of like my Gibson Les Paul.
A Quincy compressor with an oil pump should be with you for the rest of your life.
Had I not been in a hurry I'd have tried to find a used one I could buy... they're not easy to find used.
Good score.
No they are not. And wouldn't you know, this one was behind a neighbor's barn that I drive past everyday going to my shop. I just happened to stop by there for something completely different and saw this one.
Diesel
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Re: Quincy 325 oroject

Post by Diesel »

EXCELLENT find!

Attached is a video of my pride and joy. I found it on Craigslist and went through it soup to nuts. They're built like a brick outhouse, but some of the parts can be a little spendy compared to other industrial brands (IR, Champion for example).

My generation 325 pump uses the older style valves. While the valves are 100% rebuildable, the head on these older units is more susceptible to corrosion due to its architecture. One easy solution is to run it hard and burn off the moisture. I never just fire mine off for a quick project - I always run it at least 15 or so minutes to get it good and hot.

Your pump is definitely a newer ROC (Record Of Change) - so you won't likely have any issues with valve/head corrosion.
Someday I'd love to upgrade to your style bearing housing with the spin-on oil filter - all I have is a screen in mine, but it's still full pressure lubricated with drilled conrods. 8-)

http://youtu.be/ZpFPUWdqOzg

Good luck with it and be sure to put it in your will! :D

Regards,

Matt
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