Idler pulley problems

Can you give a little more info on deleting the internals? I'd be interested in doing this to my old pump that I got with my 5.7. I'll still have to replace the pulley on the pump, as mine was chipped on the outer edge when the junkyard pulled the motor out of the Wagnum R/T.
it was easy. Just open carefully. Get the little wings out of it which are sticking in the inner assy and put together again. Just be carefull that it goes together the same way. easier than you might think...