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FJR Motorcycle Forums
Technical & Mechanical Problems
Fjr stuck brakes
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<blockquote data-quote="Harald" data-source="post: 1227890" data-attributes="member: 8054"><p>I suspect you pushed crud back into the o-ring sealed bores when you pushed the pistons back.</p><p></p><p>I always recommend extending the pistons out further than they were with old pads installed so that you can clean the pistons before pushing them back. The easy way to do this is to stick a piece of material (that's about the thickness of 2 pad backing plates and the rotor) in between the pistons and apply the brakes. I have a "calibrated" <img src="https://www.fjrforum.com/forum//public/style_emoticons/default/wink.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /> piece of wood for this purpose.</p><p></p><p>In your case, you've got nothing to lose by trying this cleaning method because it may very well push the crud off the O-rings and free up your pistons. If it doesn't work, it didn't cost you anything other than a little time and you can proceed to rebuilding your calipers.</p></blockquote><p></p>
[QUOTE="Harald, post: 1227890, member: 8054"] I suspect you pushed crud back into the o-ring sealed bores when you pushed the pistons back. I always recommend extending the pistons out further than they were with old pads installed so that you can clean the pistons before pushing them back. The easy way to do this is to stick a piece of material (that's about the thickness of 2 pad backing plates and the rotor) in between the pistons and apply the brakes. I have a "calibrated" [IMG]https://www.fjrforum.com/forum//public/style_emoticons/default/wink.png[/IMG] piece of wood for this purpose. In your case, you've got nothing to lose by trying this cleaning method because it may very well push the crud off the O-rings and free up your pistons. If it doesn't work, it didn't cost you anything other than a little time and you can proceed to rebuilding your calipers. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Fjr stuck brakes
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