Hi guys I just bought a 83 300sd that needed a starter.I drove 11 hours both way to pick it up,got it loaded,back home and running in 12 hours.My problem is that at first it wasn't smoking at all but now that I have driven it a little bit it is starting to smoke horribly.It smokes blueish white smoke at idle if you drive it a few miles down the road it will quit.If you let it idle for a while again it will start to smoke again.If you drive it for a long distance more than 10 miles it will not smoke at idle any more after that.It had been sitting for over a year before I got it and I didnt drain the tank before starting it.When you shut it off it makes a weird noise like one of those old toys that are metal and you spin them and they make a grinding noise.Have owned several diesels but never a mercedes.So if you have any ideas write them in a way that a dummy can understand.Any help will be greatly appreciated.