I noticed a small leak from underneath the v band clamp on the turbo that holds the exhaust turbine housing to the cartridge. Have I not tightened it enough or could there be something wrong? I really cranked on the clamp when I put it back together after the rebuild. Is there a certain direction the factory clamps have to go?

 

So the turbo was rebuilt?

 

Yes, the turbo was rebuilt and it's loving the new lease on life with the exception of the small leak. I pegged 14 and hit cutoff last night and had to turn down the boost controller. My only issue is the leak and it's not great for spool time. I ran the turbo through miles and miles of low stress driving before really getting into it. I stopped to check everything and blipped the throttle under the hood to noticed a little bit of exhaust coming through the v band.

 

Okay, update on this situation. I tightened the clamp as much as I could and it solved both the rattling heat shield and the leak. I also tightened the wastegate about 9 turns and now it snaps right up. I will be replacing this turbo once I pay off my debt on the fuel pump I bought due to a crack in the wastegate port. It didn't appear to be a major issue yet and it's a small crack so I will run it until it pops or I replace it. You guys were right about the fuel cutoff, it is literally a brick wall. I wasn't expecting it when it dropped on me and I lost my hat to the visor.