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Dion |
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RN ![]() ![]() ![]() ![]() Group: Members Posts: 2,767 Joined: 16-September 04 From: Audubon,PA Member No.: 2,766 Region Association: MidAtlantic Region ![]() ![]() ![]() |
I’m working on the front S calipers on the GT build and hit a snag.
The pads do not seem to be for this application. Wondering if different pads are warranted. I know these Porterfields have more meat on them. That could be the reason. The pistons are seated all the way in. (Fresh rebuild). I even tried moving them with a wooden dowel. They budge just enough to collapse seal slightly but when relaxed sit as they are. Am I doing it wrong? (IMG:style_emoticons/default/dry.gif) Help appreciated!! Note: no fluid in system yet. Any brake pad recommendations? Pics Attached thumbnail(s) ![]() ![]() ![]() ![]() Attached image(s) ![]() ![]() |
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Eric_Shea |
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PMB Performance ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Admin Posts: 19,279 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains ![]() ![]() |
I recommend pulling the backing plate off the 45T's. That's standard procedure here.
Also, on new pads, new rotors and S-Calipers, it is not unusual to have some rubbing until the pads have been bedded properly. The "knockback" mechanism in the pistons is designed to push the pistons out a bit keeping them right on the pad and facilitating a higher pedal in the cockpit. Finally, crack a bleeder when installing brand new pads on brand new calipers and brand new rotors. New seals in the caliper can contribute to pistons being pushed out excessively. New pads with (again) the backing plates that they began installing over the last two or three years (still don't like them) can be a few .000's thick. Cracking a bleeder allows each piston to relax to their base position allowing you to insert the pads. Don't be alarmed if there's rubbing however, the wheel should turn by hand. A bedding session will have you in perfect form. Hope that helps. P.S. I don't recommend milling pads. The material is extremely abrasive. To do it properly will take some specialized carbide bits and a good mill. |
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