I think some newer calipers have threads such that the only way the piston will go back in is to screw it back in with the tool. I think you can tell if it is screw-in if it has indentions on the piston for a tool. My guess is the threads are an attempt to keep the pad snug as it wears to reduce the chance of chatter. On Tue, Oct 6, 2009 at 1:54 PM, <STILLFRANKSFAULT@xxxxxxx> wrote: > I don't buy into contaminates going up the line in a sealed system. IMO > Whatever is in the line belongs there. I only bleed to remove air, or any > time a section of the system is opened for repair. > If ya open the bleeder ya won't need the C clamp. I use to do that in > the early years until I figured it a useless/messy step, for changing pads. > > -Staten Island Frank- > > In a message dated 10/6/2009 1:19:07 P.M. Eastern Daylight Time, > jryan@xxxxxxxxxxxx writes: > > That's what I do. A bit C clamp works fine. I actually do it before >>> removing the caliper from its mount. I also tend to open the bleeder >> screw >>> right before pushing the piston in. The thinking is to keep from >>> pushing trash up the brake line. If you tighten it right after >>> pushing the >> piston >>> all the way, you shouldn't need to bleed the brakes. >>> > Rules: Please play nicely with others. -List members page (text & pic links): http://www.myelcamino.net/eclist.htm -List members page (all pics): http://www.myelcamino.net/ec_list.htm