Thread: Air compressor got water in the oil

Tweet

Unless you can get the crankcase hot enough to burn off the water, I'm thinking you just need to keep replacing the oil on a frequent basis until the milky color goes away.

Originally Posted by 34_40

Unless you can get the crankcase hot enough to burn off the water, I'm thinking you just need to keep replacing the oil on a frequent basis until the milky color goes away.

Yep, I'm thinking the same as you. I may do some fill and run time with some regular detergent motor oil and see if it helps to disperse the milky coating off the crankcase. Just looking for something to speed the process. I was thinking along the line of adding a bit of Marvel Mystery oil or something to help clean it up. The compressor oil is seven bucks a quart and I don't want to put it in service until I know the crankcase is clean. Its likely pretty sticky because it sat for over a year before I decided to repair it and give it to a friend. Crankcase barely gets warm after running for an hour or so. I may open the drain bleed and let it run for a few hours to get the crankcase hotter.