I recently disassembled an 83 bike that alll of the components had been properly greased when assembled 25 years ago. This bike had been poorly stored in a shed and was in very poor condition. It all came apart with no trouble. Seat post just slid right out. Pedals came loose quite easy. It was like taking a brand new bike apart except for the years of dirt accumulation. Use anti sieze or grease on all components and threads upon assembly and you will smile years later when you need to disassemble.