I have a sixty gallon porter cable Devilbiss compressor that suddenly started blowing oil out the air hose while blowing dust off of some stock. I have a new ring kit, valve kit, and gasket kit on order (hopefully it’s one of these, as I could see nothing wrong when I tore it down). How do I get the oil out of the tank, filters, hose, etc.? I spray water bourne and am nervous of contamination. Any help is appreciated.
From contributor D:
I would suggest letting the compressor build up in pressure several times and then release it trying to blow as much oil through the lines as possible. Then I would place an inline water/oil filter and replace the hose from the filter to the gun. It will be a lot cheaper than fighting with the possible contaminated pieces you finish.
Contributor D has the right idea, though. Fill and bleed the compressor tank several times and replace any flexible lines that go to your gun. Air and oil filters are a must, and if you don't have a refrigerated dryer, the desiccant dryer works well for me.
Of course though, the best suggestion is a 3 stage desiccant system. The first stage is a water trap (mostly around 1-5 microns), the second is the coalescor (0.1-0.01 microns), and the last stage is a chemical desiccant system. They are a bead that absorbs the moisture. That would be the best way to go.