Why Atlas Copco G18 blows oil and smokes?
I have an Atlas Copco that was rebuilt a little over 1000hrs ago including a new air end.
I noticed the air inlet filter is wet with oil and when you shut the compressor off it will puff out a lot of white smoke from the air inlet filter.
Also when you open the manual drain you get a mix of oil and water.
We lent the compressor to another shop and they neglected to clean the cabinet air filter several times in turn running it hot.