Removing Pilot Bearing?

I think you leave the flywheel in. You can pack behind the bearing with grease, find a metal rod that would fit perfectly in the bearing and tap. That will lift the bearing out hydrolicaly. :D

But I'd remove the flywheel anyway and change the rear main oil leaky thingy lol Damn I need to get some sleep...
 
Yes you will have to remove the flywheel and Yes their is a special tool. It is called a slide hammer and you can rent it from auto parts stores like Autozone for free. Might look something like this.
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I have had to do this more than a few times and I have tried the slide hammer and a special tool that screws into the bearing with a grease zerk on it to hydraulic it out. Limited success and serious frustration with both. The easiest thing I have found (don't laugh it works) is to pack it with wet toilet paper and then hammer it in with a round metal rod. Its not as messy as the grease method and the TP doesnt have a tendancy to sneak out around the rod if its a little too small.

And DO remove the flywheel and change the rear main while the motor is out. It IS leaking.