Post by
Hijacker »
https://forums.nicoclub.com/hijacker-u9394.html
Sun Jun 27, 2004 5:22 pm
If you've been keeping up with my recent postings, you know I recently received a turbo rebuild kit for the T-25. Originally I was gonna send it to a shop in town to get rebuilt, but someone convinced me I could do it myself. I did some research, and it looked fairly easy. This turbo has been a b1tch to work on the moment I sent the lift sailing skywards with my car balanced on it. None of the oil and cooling fittings wanted to work with me, the elbow nuts had rust welded on so tight, that we had to use a spline bit to bite into one of the nuts to get it to break loose. The housing bolts didn't want to come loose from the turbine housing, and I have learned that some mastermind of pure evil is the person who invented lock tabs for the manifold bolts.
Now onto the real thread! I pulled the turbo apart and removed the bearings and snap rings. It should look like this. Starting at the bottom, it should be journal bearing, snap ring, snap ring, journal bearing, snap ring, thurst bearing/washer and seal washer.
Instead it looked like this when I pulled it apart. Snap ring, journal bearing, snap ring, thrust bearing/washer, seal washer.
Best I can tell is that the lower journal snap ring came unseated, allowing the journal bearing to shift around. When I pulled the shaft, the bearing fell into the oil return area so I missed it until I began cleaning the CHRA. Unfortunately, I couldn't find the snap ring, so who knows where it went. It didn't cause any lubrication failures, so I'm not going to worry about it.