musubk Posted April 13, 2016 Share Posted April 13, 2016 I took apart a set of EA82 front calipers today, to replace the seals inside the cylinders. One of them I'm having trouble getting back together. On the 'inside' of the piston, there's a female threaded hole that should screw onto a threaded rod inside the caliper. My problem is that female threaded hole in the piston spins freely within the piston. That bit, which seems to be set into a thin rectangular plate that connects to the outer piston body, doesn't seem to be retained in that rectangular plate at all. I can't screw it onto the rod in the caliper because, after a couple of threads engage and I get some resistance, the outer body of the piston just spins forever without turning the hole about the threaded rod in the center. I hope this description is making sense. The threaded hole inside the piston just spins freely when turned clockwise to install, but is retained when spinning counterclockwise - which allowed me to unscrew the piston from the caliper but not reinstall it. Is it supposed to do this, or is the retention of that part somehow broken and I need a new piston? I feel like I may be missing something simple. The piston on the other caliper screwed back in with no trouble other than being very difficult to turn. Quote Link to comment Share on other sites More sharing options...
two85s Posted April 13, 2016 Share Posted April 13, 2016 Sorry I can't be of more direct help but this video may give you some tips. There are more you can search or look it up in a FSM. Good luck. Quote Link to comment Share on other sites More sharing options...
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