Stop in for a cup of coffee

Good Morning Everyone. When we tried taking Dad's 413 apart we ran into the same issue as Rani. Soaked in several types of oils for a month - both from top and rotated to soak from the bottom. Even drilled the pistons to relieve some cylinder wall tension/stress. No go. Sledge hammer and a steel bar stock. Nothing. So I gave him a 440 I had.