how clean is your oilIJ dad pulled a pair off of one of our parts machines and noticed oil with a lot of filings in it. apparently, metal fines never leave the rams once they get introduced, so I would say change oil in the system, and try and purge the rams of old oil. I would think to do this properly, rams will need removed and stroked by hand till free of oil. also agree about pitted rams, that will also take out seals.