I had to cut the boss of the Rover, and use my home made sliding hammer, eventually came off. I thought I'd use the boss off the burnt Victa...... But the key is a permanent piece, and doesn't look like coming out....... It must come out. I have to use the half moon old rover key. I have another Rover boss, so back to waiting for a old Rover blade plate.... cheers speedy
........................Keep your blades sharp......................