YORK HP B2CH090A25A. Removed the second stage compressor and LL dryer then on to blowing out the lines with nitro. I could tell this compressor had been changed out before (definitly not factory welds and new LL dryer) the owner of the store had been there for two years and has no idea when. While blowing out the lines there was a sh-t ton of oil coming out of the acumalator ( I have never seen this much come out before). I am wondering if all the oil in this system would have been the reason for the comp. valves to warp in the first place. I blew out all the oil i could get out but not sure how much could still be in there. I am worried about there still being enough oil in the accumalater to cause a similar problem. Should i have replaced the accumalator? What else could i have done?