Mac Grubered this to remove valve springs , works slicker than snot , 2 springs at once , no pulling , just tighten bolt and loosen bolt .
http://i71.photobucket.com/albums/i1...Compressor.jpg
Copied Crane Cams design , used a 10.9 harden M6 1.0 bolt , little rough around the edges , but worked great .

