compressor is throughing all oil from sump to air tank

by Fahad
(Pakistan)

hello

compressor is throughing all oil from sump to air tank

i am much worry about this condtion of my compressor

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Bill says...

Hello Fahad,

You don't include much info about your air compressor. I am going to guess that it's a reciprocating type in my response.

As the piston moves up and down, oil from the sump is supposed to splash up around the crank shaft, into the cylinder, and all parts, to provide lubrication and cooling.

The part that is supposed to keep the oil in the sump and out of your air stream are the seals on the piston.

If these seals are worn badly, oil stays on the cylinder wall as the piston cycles, and makes it's way from the sump into the air stream.

All recip compressors do this. The amount of oil that moves from the sump to the tank is a measure of how badly these seals are worn.

From what you say, I think yours are worn pretty badly, and it's time to tear down the pump for a rebuild. My two cents worth, at least.

Cheers and good luck,

Bill