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American Kellogg 321 compressor


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  #1  
Old 03-30-2015, 06:57:50 PM
EnginePat EnginePat is offline
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Default American Kellogg 321 compressor

I have a American Kellogg 321 compressor that I can hear leaking inside, not from the check valve but from the air intake area. I have not worked on one of these so any hints of where I should go first would be appreciated.

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  #2  
Old 03-30-2015, 11:15:34 PM
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Default Re: American Kellogg 321 compressor

Without knowing what is going on it could be ok. if not my guess rings or valves
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Old 03-31-2015, 12:50:47 AM
Marshall Henderson Marshall Henderson is offline
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Default Re: American Kellogg 321 compressor

Couple of questions to help narrow down the problem.
Does it leak while running or when it shuts down?
Is it start/stop or continuous run?

any pictures of the heads and/or control lines, unloaders, etc.

My first thought is that the valves are leaking, along with the check valve.
It has been 20 plus years since I have touched a Kellogg compressor, is the 321 a single or two stage unit? If two stage there should be a pressure safety valve on the intercooler. What is pressure rating on valve and can you manually release it, assuming of course that it has one.

Marshall
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Old 03-31-2015, 08:41:36 PM
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Default Re: American Kellogg 321 compressor

Thanks for the replys, I pulled the check valve to look at it and possibly clean it, it was ok. I pulled the head, a very different story. rusty valves (discs) and the springs are shot so I ordered a kit for it. I will get so pics up as I go.
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Old 03-31-2015, 09:36:11 PM
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Default Re: American Kellogg 321 compressor

Is it the unloader hissing when it shuts off? If so this is likely normal.
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Old 03-31-2015, 11:10:53 PM
dalmatiangirl61 dalmatiangirl61 is offline
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Default Re: American Kellogg 321 compressor

I'm not sure about the Kellogg valve discs, but the Quincy valve discs can be flipped over, or just lapped smooth, if the pitting is not too bad.
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Old 04-01-2015, 08:39:14 AM
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Default Re: American Kellogg 321 compressor

No on the unloader, the discs and springs were shot, 1 spring was rusty. So I can guess that is so of the trouble.

Not sure about flipping them, I need gaskets anyway and the valve kit is cheap enough, I will look at them this morning to see if flipping can happen.
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Old 04-01-2015, 09:33:37 PM
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Default Re: American Kellogg 321 compressor

I got the seats out of the head today they unscrew also. One seat was loose and the others were so tight it took a breaker bar to get them loose. The seats are hammered and really
grooved. The discs have really deep grooves in them so no reusing any of this.

I have edited the content of this post.**

I was looking on craigslist and saw a compressor head that looked like the one I have so I called and went to look at it. It was a lot bigger than mine so for $60. I bought it, I thought it was a 352tv but it turned out to be a Kellogg 331TV and mine is a 321tv it a lot bigger. It turns out the 331tv is perfect with a 5hp baldor. So I will get a 3-b 6.4 pulley and get it up and running.
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Last edited by EnginePat; 04-02-2015 at 05:45:11 PM.
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Old 04-04-2015, 10:05:58 PM
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Default Re: American Kellogg 321 compressor

I did a few things to the compressor today, I had to make a new motor mounting bracket because the motor was to close to the compressor head. I had to order the pulley bushing and three belts from freemont supply it will be a few days before I get the parts. In the meantime I need to replace the copper lines to the head and unloader. I had a new hose made from the compressor head to the tank but I think I am going to make a finned aftercooler to cool the air before it goes into the tank and after the air comes out of the tank. I have 20 ft of industrial baseboard that I am going to hook into the air line.
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Old 04-05-2015, 02:42:28 PM
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Default Re: American Kellogg 321 compressor

I finished the mount this morning. made the motor sliding ajuster. Turned 4 aluminum spacers, welded a nut under it and made and welded a tab on the bottom part. Now to get a bolt for it and some paint.
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Old 04-09-2015, 08:39:27 PM
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Default Re: Now new American Kellogg 331 compressor

I bought the new belts and sheave and bushing (pulley) from Fremont Industrial Supply last week, there prices are good but they are slow shippers. It took 6 days to process and ship. They just shipped them today, I tried to call them to get them overnighted but they did not call me back and now I get the email they shipped first class mail? I may see them next week so until then.
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Old 04-11-2015, 10:43:12 PM
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Default Re: Now new American Kellogg 331 compressor

I got a package from the supply house today, 3 belts and no pulley? can you believe it! I ordered both at the same time.
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Old 04-13-2015, 08:46:46 AM
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Default Re: Now new American Kellogg 331 compressor

They did not ship it.
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Old 04-15-2015, 11:44:59 PM
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Default Re: Now new American Kellogg 331 compressor

Well today I got the new pulley! I install it and fired up the New used 331 head. It ran great built pressure, I can use a right angle 2in rolex wheel with a small right angle air tool and it stays at 125 psi never falls below! It goes up to 140 and stops and starts at 100 so everything was working fine. But I noticed after about 20-25 mins of sitting the compressor will really struggle to start. so if I blow the air down it will start right up. It only does this after sitting. The unloader is working after it shuts off it blows I ton of air out. Could the check valve do this?
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Old 04-16-2015, 12:29:19 AM
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Default Re: Now new American Kellogg 331 compressor

The sheave is the right one
6.15 is the one I wanted, medium speed I think it was 625 rpm, I am checking the check valve tomorrow . load the tank up then take off the
line to the check valve if it is leaking replace valve. that's the plan
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Old 04-20-2015, 06:50:12 PM
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Default Re: Now new American Kellogg 331 compressor

I took the check valve out and put a new one in, Took care of the problem, and I thought about the size of the Sheave size after reading the post, and I put a 5.50 on now there is no problem starts stops, starts again no problems. So this ends it and my thanks to any suggestions given.
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Old 05-03-2015, 03:09:36 AM
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Default Re: American Kellogg 321 compressor

Can't beat American iron and steel! My shop pump is a Kellogg 335TVX with a 5HP Baldor on an 80 Gal tank. Found it at a yard sale, seller said his company was "replacing all the outdated pumps."

Came with a box full of spares. Valves, rings, bearing's etc. Best $100 I spent and that included two 5HP Baldors!
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Old 05-03-2015, 02:30:38 PM
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Default Re: American Kellogg 321 compressor

I used to buy compressors to refurbish and sell, but in the last few years it seems like a no win situation. Most people just do not appreciate the quality of the older compressors, they prefer new shiny screamers that they have to replace every few years. Had a customer yesterday that almost seemed proud of the fact that he replaced compressors every 2 years

I purchased my Quincy in 1990 for $800, and its still running strong, why people prefer junk is something I just don't understand.........
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Old 05-04-2015, 02:50:16 AM
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Default Re: American Kellogg 321 compressor

Quote:
Originally Posted by dalmatiangirl61 View Post
I used to buy compressors to refurbish and sell, but in the last few years it seems like a no win situation.

Me too! DeVilbiss, Worthington, Binks, Ingersoll-Rand etc. Primarily piston types, 20HP and under. Gas and electric. One of the favorites being the Devilbiss V4's, 432 & 445 models. Cheap import crap really did a number on the small business/homeowner market. Why buy something that will last decades?

I purchased my Quincy in 1990 for $800, and its still running strong, why people prefer junk is something I just don't understand.........
When I tore down my 1976 Kellogg 335 it was like new inside. But with lots of new spares no way I could put it back together without fresh goodies. The Timkin tapered crank main bearings were in perfect shape. 10 Years now since it was put into service in my shop, zero issues and I expect to say the same in another 10 years.
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