Okay, here is a couple pictures. I did find something also on another website dealing with a 240sx, some people claim to have problems fitting in a new bushing, they end up breaking them because it appears they are too big, it could be because of this, below the pictures I posted the section from the other site. This cap could be for an automatic, my old motor was manual and it wasn't on there, but the JDM could of been an automatic. Anyway here is the pics.
Untitled-1 | Flickr - Photo Sharing!
POST FROM ANOTHER SITE
"Remove the automatic bushing adaptor
from the crankshaft and install the manual pilot bushing. The automatic adaptor is a real PITA to get out. The most effective way that "I" know of is to use a carbide side cutter and carefully cut a slot in it, then compress it with a good set of vice grips and then pull it out. I have broken 3 pilot bushing pullers trying to get it using the "right tool".
I successfully used the bushing puller after cutting the automatic bushing with a dremel and cutting wheel at 12/3/6/9 o'clock and then at 1:30/4:30/7:30/10:30. Warning! Be careful to NOT cut into the crankshaft with any tool. (WJ)The boy's over at Team Clockwork Performance use a large pipe wrench (monkey wrench) inserted into a large pipe for leverage and use a twisting motion to get the bushing out. One person holds the crank from spinning with a socket and breaker bar while the other spins the bushing enough times for it to slide off. Use this method with caution."
This doesn't look like fun to me! Just when you think something is gonna be easy.