I use Diggers Wax & Grease Remover, and you'll want to use it to clean everything, not just the felt washers. As for tools, you'll need a small paintbrush for applying grease and another to aid in cleaning parts. This guide of Slinky's may be helpful. http://www.fishraider.com.au/Invision/index.php?showtopic=46630 The only issue you may have is with the bearings. They need to be opened, cleaned and oiled, but they can be annoying to open even with the appropriate tools. I would ring Shimano and replace them all. Their part numbers can be found on the schematics I posted in my above post.