I have a 225 short block and need to pull out the cam & lifters. How do I remove the oil pump shaft in order to pull the cam out?

I have the engine on a stand, oil pan off, and the engine upside-down. The oil pump rotor shaft is captured on both ends. On one end is the gear that drives off the cam, and the other end has the oil pump rotor with the lobes. It looks like both are pressed on the shaft. This is my first teardown of a /6.
Thanks