Spigot bearing removal

[Tatey]

I'm currently trying to remove the spigot bearing from my 1.8 silvertop zetec engine to replace it with the sierra spigot bearing. However I am having some difficulty in removing it. I have tried the molly grease method, of packing the crank with grease and getting something which fits tightly into the bearing and give it a good hard whack to try and force the bearing out. But the grease just seems to ooze out of the sides.

I am trying to use a 3/8" breaker bar as the ground bar as it fits nicely and I have nothing else that will fit.

Has anyone got any ideas as to what im doing wrong or any other methods that are proven to work? I dont have access to a bearing puller, but would be willing to buy one if they are cheap enough. Does anyone have any recommendations for a bearing puller?