So last week I pulled my CAT for a repair and I was shaking it around. Out came this metal ball, now I only saw it for a split second cause it bounced away fast and it went out in to the street. So I think it might have been a ball bearing, not 100% sure though.

After this happened, I feel around the turbo to see if anything was wrong, but the thing is I never felt up the insides of my turbo before (no jokes please). However I did find something that I though was weird, theres something on the cat side that can spin maybe 3/4 of a full rotation but then stops and the shaft that it's connected to has a lot of in and out play but none sideways.

Also I've noticed that whenever I let go of the gas when the boost is around 10+ psi I'll get thi weird chatering noise.

 

bump

 

Got a picture or can you find a picture of what your talking about?
Our turbos don't have ball bearings so the ball didn't come out of your turbo.

 

Sorry but no pic, I couldn't get my head in there to even look at it and there was not enought space to get m camera in there to take a good pic.

 

thats the wastegate actuator, the sound you hear is the vibration. It has two small nuts that hold it tight, sometimes they loosen up and allow some vibration. mine is doing it too, but you gotta pull you turbo to get at then and retighten them.