Ok, as previously mentioned I have purchased two 83 saab 900 8v turbo's relatively cheaply. I have taken the turbo off of my "parts car" and determined it to be faulty because of significant play. I began to inspect the turbo on my "good" car by removing the exhaust elbow and I found it has play as well. Unfortunately I also found in the exhaust elbow and pipe that dreaded mayonaise indicating oil has mixed with water. I checked the forums for similar symtoms and I am assuming that I have a blown head on my "good" car. Am I correct and should I start planning for this repair?