Hi all , first proper post and on the scrounge for information/ experience. I have just bought a 54 plate cdti. The exhaust manifold was cracked so i had a look around on the web and read a post from a guy who had succesfully repaired his by welding it up, so i thought that was the way to go.... so i pulled off the manifold , sorted that out good as gold, built the car back up , started it ( nice and quiet ) drove the 10 miles back home with no problems, just before i got to my street i opened the window to smugly listen to my nice quiet engine and i noticed a horrible squeal when the turbo came in!!! . I know what a turbo should sound like and it ain't right , i get a nasty grindy squeal as the turbo spools then it goes but the same sort of sound as the turbo slows. The car drives fine but after noticing that i don't want to drive any more till i sort it ... any ideas folks??? before i pull the turbo off again to investigate. kind regards in advance Sid.