Tank rating for very old Kellogg American A320A compressor

Published Categorized as Kellogg 9 Comments on Tank rating for very old Kellogg American A320A compressor

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by Dave H
(Shelton Ct)

I’ve had in my possession for about 3 1/2 years now a very old Kellogg American compressor. It was traded to me for mechanic work on a friends vehicle.

There is no plate on the tank other than the plate next to the compressor that says “The American Brake Shoe Company Kellogg Division Model A320A”

Kellogg American A320A Air Compressor
Kellogg American A320a Air Compressor
Kellogg American A320a Air Compressor
Kellogg American A320A Air Compressor

The compressor is a 2 stage unit that runs up to ~150 psi. The tank appears to be 60 gallons from the very slim pickings i’ve found on the internet, but to me the tank looks larger than that, maybe 70-80 gallons.

The Cutout switch is adjustable, and the blowoff valve reads 200 psi on it. Is there any way to figure out what the tank is rated at?

I was hoping to run the unit to 175 psi like the information i found here.


The compressor is off for a rebuild right now, and a Kellogg American 325TV is in it’s place for temporary use only.

The Electric motor reads “Delco Motor Model A5397 Serial G-3-46 110/220 Volts 20/10 Amps 1 1/2 HP and there’s more i just can’t remember it.

I know it’s very old, I’m guessing 1940s, going by the Brush-type motor and poured Babbitt connecting rod bearings in the compressor.

I’ve attached a few pictures as well.

Thank you Bill.


Parts for Kellogg American compressor
by: Dave

I ordered my valve rebuild parts from Scales Air Compressor out of New York. They had a full rebuild kit in stock (gaskets, seals, valve parts, new rings).

They also have the tools to rebuild the head yourself, save for one. There are 4 tools, but one they sent me ended up being a defective batch(mine failed on first use and all the others failed the same way when the guys at the shop tested them). I ended up using one of those disc brake squares from an auto parts store in place of the defective tool and it worked fine.

Does your 1.5 HP motor ever make something not unlike a vibrating sound sometimes? Sometimes mine will just hum along silently and other times it makes that noise. If i put my hand on the motor while it’s running i don’t feel any vibration. The motor shaft has play in and out, but no side to side play like bad bushings.

Any idea if it’s just some odd occurrence or if it sounds more severe?




1946 or 1947 A320A compressor
by: Grant

I’ve got a 46 or 47 a320a, and that 1.5hp motor was all it ever needed.

The head on mine gave out earlier this week and I’ve been on the search for parts or someone who can refurb it.

I’ve had the compressor since the mid 90’s and it’s never let me down. It’s amazing the torque the old 1.5 motor has, and it just hums along nice and quiet.


A320A motor
by: Dave

I can guarantee the motor is original. From the pictures I’ve seen straight out of the ancient Kellogg(then American Brake Shoe Kellogg Division) books online that’s what the motor looked like. Also the A320A was rated to have a 1 1/2 HP Delco motor, which is exactly what mine has.

The serial number is G-3-46, so I’m guessing March of 1946 for build date.

Not sure what else such a simple serial number would be used for otherwise.

I was surprised that it was only 1 1/2 HP, being as large as it is, but it has a ton of torque. It’s not an over rated capacitor start motor like now a days. Now you see compressors with motors 1/2 the size of mine that say “6 hp” on the compressor tank, but the tag on the motor is blank under the “HP” section, because the motor isn’t that strong.


Kellogg American compressor
by: pcbeachrat

Please let me know what happens here and what you find out.

I have a problem with the motor must have been changed,but yet I am guessing..I just cannot see a 1 1/2 horsepower motor being on A 2 STAGE PUMP?

Possibly if it was 3 phase electrical but not on a 10 or 20 amp electrical option…the 20 amps will pair up with a light 2 stage pump,but 10 amps on the 110 side will not,I don’t think,so I cannot answer your question,but would like to know the outcome myself when you find out…RThanks..

The above are just my suspicions,and own thoughts,so the thoughts are not written in gold..but just wanna know…BTW..kellog is one of the best pumps made!!

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Need to replace my motor on my Kellogg A320-A compressor. tag on motor is model # A-5397. other info on tag is: B-1-42, 40/110/220 20/10 60/1-1/2 1760. My question is can you suggest a replacement motor. This is for home use. Thank You

Could you post a pic of that label please? Are you running it on 110 or 220V?
Reading elsewhere, I believe that’s a 1 1/2 HP motor, old style,
If you look at current motors, look for 3HP or more, 1750 RPM, “compressor duty” and the same shaft diameter, so you can use the old pulley with any luck.
Why 3HP? Because newer motors are overrated, and older ones underrated.
Check the mount bolt pattern to be sure it will fit on the platform. You may have to drill new holes for it.

Good luck.

Doug, yes I believe you are correct. I am running it on 220v. I am going tomorrow to check out replacement motor. I have attached pic of label. Appears to have a 1″ shaft diameter. Thank You for your help. More to follow.

Boy, that’s hard to read…anyway, you ought to also pay attention to the method used to secure the pulley to the motor – there are a few variations.

Yes it is hard to read. I am finding it hard to find motor with same size shaft for pulley. May have to get new pulley with same dimensions. I’ve attached some pics of motor. Its setting on a 2 wheel dolly. And I really appreciate your help!

Yeah, I see what you mean. Maybe a bushing would be cheaper…can you do 220-240 volts?

I believe its move than a bushing issue! LOL. No I am not educated on electrical motors, however I have a close friend that is schooled in this area, just haven’t been able to contact due to COVID- 19 issues. Still thinking new replacement motor is the way to go all and all. Once again Thank You.

Uhm…perhaps you misunderstood. The motor issue, aside from finding a single phase, is finding one with a 1 inch shaft. They seem to run to 5/8ths. Hence a bushing rather than a pulley, which tend to be not cheap, for some reason. But I’m not buying motors or pulleys as a routine thing so maybe your friend will be able to find something.
Anyway, good luck and please keep us posted.

Copy on the pulley bushing. I definitely will keep you posted. Thanks again.