to clean out glass bead, first, make sure all the grease is off the part, and that you mask any threaded holes or just put screws in them first. to clean out the bead media, blast with compressed air first, then fill a large sink with really really hot water and dish soap or simple green, wash the part really thoroughly, use those pipe brushes to clean passages, then when you're totally sure it's clean, take it out, empty the sink, wash down the sink really well, fill it up and do it again, then when you're sure it's clean, rinse, wait until dry and blow off with compressed air again, that'll get 99.999% of bead out, which means there'll only be about 20 little beads left hiding somewhere ;D