so went to have a propper look in daylight,
can see a gap between turbo and dump.
check stud seems loose, go to tighten and it comes out, stud sheared in turbo.
so looks like turbo has to come out stud removed and re fitted,
great.
at least it drivable so can take it chaser to get it done.
but..do I replace turbo or keep running as is...
got a few months b4 Nats to work that out.