Oil in automatic drain bottle. Oil leaking through motor

by Kevin
(walnut, CA)

I have a Jun-Air 12-40 dual motor 6 oiled compressor. I notice oil being collected in the automatic drain bottle. I assume this means oil is leaking through the pump motor.


I read somewhere that the valve plate kit will alleviate this problem, as the compressor still functions normally, albeit the recovery time is slower than when the compressor was brand new.

How would I go about replacing/rebuilding the valve plate for my compressor? I can already get access to the inside of the motor.

Comments for Oil in automatic drain bottle. Oil leaking through motor

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Feb 07, 2016
Jun-Air 12-40 rebuild
by: Bill

Not quite sure what you are after?

It seems to me that the pump rebuild is exactly what you want.

Parts are available from Jun-Air.

http://www.jun-air.com/product_detail.aspx?ProductID=635&ProductTypeID=50

Also available from them are the data sheets for the compressor and the manual.

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