1979 chevy van engine noise

Please help…just purchased 1979 chevy van 30 shasta motorhome…got it home and now have loud metallic noise…starts and idles fine…noise sounds like it is coming from the area of a pulley

Any chance you can give the motorhome back? Of all the posts asking advice on if a purchase should be made,yours was the one that should have been posted.I honestly feel sorry for you…good luck

Look at the fan and see if it’s scraping something, look at the alternator fan blades, try turning over the engine by hand with a socket and breaker bar and see if you can tell where it’s coming from. Also, get under it while it’s running (or pull off the doghouse cover) and listen where the transmission attaches to the back of the engine, you may have a damaged flywheel. Good luck!