On 9/19/2021 9:52 PM, Tom Kunich wrote:
> Andrew, maybe you can help with this. I was changing the new style Centaur 10 speed levers from one bike to another and the right lever wouldn't work properly. I unscrewed that cap that covers the spring and discovered that s strand of the shift wire had broken and caught up in the mechanism. I cleared that out and is appeared to be OK but reassembled it doesn't work quite right. Is there some special position that the spring cover has to be in to allow it to shift properly? Though I haven't reassembled the rear derailleur on it, pulling the wire seems to cause it to skip over several gears.
#1 problem is the return lever ( thumb lever) sticking. That
will lock up the mechanism, sometimes randomly.
Check that the rubber lever cover is in place (tabs in the
lever slots) and not impeding it. Then flip your bike over
and look at the pivot and spring for the thumb lever. See
rust? Oil it and work it a bit.
There could be other troubles such as more gear wire swarf
but that's the most likely cause. Care to expound on
"doesn't work properly" ?
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