MXSeatPro.com
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So I need some advice...I'm working on getting this bike road ready, that was last registered in 1984. I came with a dismantled front brake Master, but the caliper was still in tact. I put on a newer Nissin Master off a '05 GSXR, and had Stream Line make me a new line. I then filled and bled just to see what it would do and found the caliper wouldn't release. So I rebuilt the caliper and bled it again. Its been working perfectly for the past month or so until it decided to stay engaged again. What is causing this hang up and what tricks do you know to keep it from happening. It has a new seal and boot on it, and I thoroughly cleaned the caliper housing and piston. Is the new Master creating a vacuum? Is this common with late 70's Nissin calipers? Or is my best bet to just break it down and do it again? What are your thoughts on scoring the surface of the piston and creating a cross hatch to reduce stiction from the seal? Any thoughts?