Originally Posted by
Hammer007
I have a Sora R3000 brake lever that I can't seem to figure out. This is what I've done. The barrel adjuster is screwed all the way in. I've pulled the cable taut and secured it with the pinch bolt. I've cleaned the lever arm on the caliper. I've checked to make sure the cable isn't getting stuck or pinched when running through the housing/frame. After I've done all this when I pull the lever it feels fine at first but then I hear click at the lever like something didn't engage and it becomes loose.
First thing I think of is not fully seating the cable's head in the lever's fitting.
Next up is not having the casing fully seated in the various stops, ferules and adjuster barrels.
When the problem happens is the cable head still as engaged in the lever's fitting as before? Are you sure, take a photo of the before arrangement to compare if you're not sure.
Make sure the problem isn't elsewhere. Rim brake pads when not properly centered on the rim's brake track can develop a unworn "ridge" which can hinder pad/rim engagement.
So, after the problem happens and you go back to the cable and anchor bolt, do a retightening of the cable (loosen the anchor bolt, pull the "slipped" amount of cable further through the bolt and retighten it) what happens?
I suspect this is a very basic and simple issue that we can't see from long distance and you can't up close. Andy