hi again i just got my new engine in and there is a rattlr realy load when i take my foot of the gas ,i looked and listend and it seems its coming from the heat sheild so i took it of and it was still there so i noticed that the wastgate bar is loose ..the bar comes from the wastegate and the it has another pice of metel on it to make it join the turbo well tere is play in that what do i do or how to fix ,,its realy melting my head thanks lads and lassies