Rattling noise from engine
Changed the blade 2 days ago and ran mower a little worked great. Yesterday went to mow the lawn 1 min in engine started losing power and stalled. Pulling rope to restart seemed tight, loosen blade a bit to see if helped. (didn't over tighten imo) Engine restarted 1 min in large BAM noise then sounded like a large nut was spinning around in my engine and mower quit cutting.
Briggs & Stratton 4.75 hp Craftsman push mower