So i replaced my head gasket this weekend. It was kinda fun. Had a nice crack in the gasket around cylinder number one. Well everything went back in place after many hours and now my car run great in that is doesn't eat coolant or start up rough. but now i have a question about the turbo. So i decided to have some fun for once and use that turbo a good amount. After using it a couple times it didn't want to go past the middle part of the orange. And i didn't notice any wierd noises. just didn't want to spool up. So when i get back and let it idle for a couple min i just rev the engine up to around 2000 rpm and as the engine come back down to idle i hear a metal noise. Its like something is a little loose of something... i only hear this when i use the turbo.. any ideas... should i try and record it?