Please help I.D. this old compressor

by Rich
(Shrewsbury, PA)

Help I.D. this old compressor sheave side

Help I.D. this old compressor sheave side

Help I.D. this old compressor sheave side
Help I.D. this old compressor motor end view
Help I.D. this old compressor pump view
Help I.D. this old compressor pump end view

I found this compressor in my garage when I purchased the house.


It runs and makes pressure, but is kinda cruddy.

I want to clean it up and maintenance it as needed.

Can someone identify it for me and let me know if there are parts available?

I drained the oil and it was a creamy milky color. Also there was a significant amount of this creamy milky "pancake batter" inside the receiver tank.

Any suggestions?

Comments for Please help I.D. this old compressor

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Sep 23, 2016
nice compressor
by: Anonymous

Old commercial refrigeration compressor. king valve on head appears to be altered.

if the valve has a stem under the cap nut with a square end on it this must remain in the open position or the compressed air cant exit the head and can cause damage to the unit and sometimes a rupture.

i would make sure its fully back-seated and cut the stem off with a hack saw as it has no purpose as an air compressor.

Aug 16, 2016
Refrigeration pump?
by: Anonymous

It's look like an old piston type refrigeration pump , the manifold on head looks to be
Refrigeration

Apr 11, 2016
Casting Numbers
by: Rich

Left Side: "F-5" and "MADE IN UNITED STATES OF AMERICA"
Right Side: "63820" and "R" and riveted tag "1-7"
Crankcase End: "639083" and "638280" and riveted tag "1-12"
Head Top: "638207"

Apr 10, 2016
old compressor
by: Doug in s.d.ca

Interesting plumbing...

I see some casting numbers, but can't read - they might help.

I'm afraid the milky is air/water blowing by the pistons - probably bad rings.

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