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#446173 Chadmans06 (User) Fresh Boarder Posts: 22 Rear brake caliper 5 Months ago   Hello everyone, I am in the process of getting the new to me 06 Roadstar road worthy. The bike was in San Diego and sat for a bit. Long story short, the bike had some parts that are a little rusted, one being the rear brake caliper. The pistons are a bit rusted and I am not completely sure if it works properly. I am wondering if it is worth it to maybe take it apart or if there is a way to test its ability when it is off of the bike. If not what would be a reasonable price to pay for a good used one? I am hoping that the front ones aren't the same. Once again, thanks guys for any help you can provide. Chadman   Logged     The administrator has disabled public write access. #446178 huskerbob (User) Life is about monents that take your breath away Platinum Boarder Posts: 2186 Re:Rear brake caliper 5 Months ago   Well I go through it and rebuild it http://roadstarclinic.com/content/view/86/95/ there is more here also   Logged     Last Edit: 2011/12/23 20:47 By huskerbob.     The administrator has disabled public write access. #446183 Chadmans06 (User) Fresh Boarder Posts: 22 Re:Rear brake caliper 5 Months ago   Can I get new pistons for it or can I just blast them and clean them? Also what comes in rebuild kits for them?   Logged     The administrator has disabled public write access. #446186 huskerbob (User) Life is about monents that take your breath away Platinum Boarder Posts: 2186 Re:Rear brake caliper 5 Months ago   You can get kits to rebuild just like a car brake master cylinder .I don't know what your skill level on Cleaning them is.I myself not that trusting of my skill to do that!!! I like to stop   Logged     Last Edit: 2011/12/23 20:46 By huskerbob.     The administrator has disabled public write access. #446192 About_Time (User) Been there, swore at that! Platinum Boarder Posts: 1106 Re:Rear brake caliper 5 Months ago   You should be able to see if it works by removing it from it's mount and GENTLY applying the rear brake pedal, while looking for motion from the piston. I'm not sure what you get in a rebuild kit, but I'd bet a new piston would be hard to come by and would also be pricey. As for the blasting...I guess it's possible. Make sure you don't hit the sealing surface (the outside diameter). Getting that rough would be bad for the new seals. One of the best things I've found for protecting areas that you don't want to hit while sand blasting is electrical tape. Wrapping a couple layers of electrical tape around the od of the piston should help. Good luck. Let us know how it goes. AT   Logged     2004 Roadstar Silverado Marshall Gold/Beach Sand Tan Lots of chrome stuff   The administrator has disabled public write access. #446196 The Gardener (User) OCR Gold Boarder Posts: 625 Re:Rear brake caliper 5 Months ago   slip it off, leave pads in, place fingers between to keep pads in place. GENTLY apply pedal pressure, you should feel it move, move it out (allow to travel) just an eighth inch. usebrake cleaner and an old tooth brush, clean around the seal, wipe clean. reasonably clean. when you replace pads, the piston will travel back further than you need it to now (worn pads) and tth road grit ought to sandblast it somewhat. you could wet sand down anything rough. they are just like a handle less coffee cup and slide easily in the bore against the seal. a rebuild kit is just a new piston seal   Logged     you can find more about me & my R* on: http://www.facebook.com/davida.johansen   The administrator has disabled public write access. #446208 greenpus (User) Platinum Boarder Posts: 1674 Re:Rear brake caliper 5 Months ago   Chadmans06 wrote: Hello everyone, I am in the process of getting the new to me 06 Roadstar road worthy. The bike was in San Diego and sat for a bit. Long story short, the bike had some parts that are a little rusted, one being the rear brake caliper. The pistons are a bit rusted and I am not completely sure if it works properly. I am wondering if it is worth it to maybe take it apart or if there is a way to test its ability when it is off of the bike. If not what would be a reasonable price to pay for a good used one? I am hoping that the front ones aren't the same. Once again, thanks guys for any help you can provide. Chadman I doubt if the pistons are rusted but they could be. I'd do the easy stuff first. Take the pads off and just make sure the slider pins and pads are clean. The slider pins should be clean and smooth. Put the pads back on the caliper and bleed the rear brake and test. Unfortunately it's hard to test the rear by spinning the rear tire by hand. You have a lot of binding caused by the belt.   Logged     The administrator has disabled public write access. #446211 mkayx (User) Platinum Boarder Posts: 1125 Re:Rear brake caliper 5 Months ago   you do not blast them,remove the calibur using compressed air pop the piston out clean the inside of the cal. if the piston needs cleaning put some clean brake fluid on it and using very fine emerycloth polish the piston replace the parts in that come with the rebuild kit (normally a rubber o-ring the is on the piston and a dust boot) lube the o-ring with clean brake fliud before reinstalling it   Logged     The administrator has disabled public write access. #446275 huskerbob (User) Life is about monents that take your breath away Platinum Boarder Posts: 2186 Re:Rear brake caliper 5 Months ago   http://roadstarclinic.com/content/view/86/95/   Logged     Last Edit: 2011/12/24 18:07 By huskerbob.     The administrator has disabled public write access. #448008 HotRodRStar (User) Midnight Rider Senior Boarder Posts: 275 Re:Rear brake caliper 4 Months, 3 Weeks ago   I have a question on the real master cylinder piston assembly. I am wondering with the remote res. can the piston portion of the master cylinder be mounted upside down? Im working on on a floorboard/forwardcontrol/notsureexactlywhatyet but I want to move the res. up under the tank and reverse the piston but mount it upside down. Any thoughts??? Rod   Logged       The administrator has disabled public write access.

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