Doug,

I think that part rotates 90 degrees and changes the pull ratio.  The part
I think that's broken is the plastic ratcheted pieces. When I get home I'll
pull it apart and investigate.

On Oct 12, 2016 7:56 PM, "dougP" <dougpn...@gmail.com> wrote:

Now you've got my curiousity.  I'm thinking the wear part is the silver
plastic goodie that Bill mentions having to be in correct alignment.  It's
a loose part so it is replaceable.  Whether they're readily available is
another question.  On my 8 speed, I just switched to friction a couple of
years ago but admit having index would be nice.

dougP


On Wednesday, October 12, 2016 at 5:27:48 PM UTC-7, Hugh Smitham wrote:

> And to my understanding not replaceable.
>
> On Oct 12, 2016 5:27 PM, "Hugh Smitham" <hughs...@gmail.com> wrote:
>
>> I wouldn't even know where to start looking for that? Nor what that is. I
>> think the issue is the small internal ratchets.
>>
>> On Oct 12, 2016 5:17 PM, "dougP" <doug...@gmail.com> wrote:
>>
>>> Is it possible to buy just the indexing washer?
>>>
>>> dougP
>>>
>>> On Wednesday, October 12, 2016 at 10:43:05 AM UTC-7, Hugh Smitham wrote:
>>>>
>>>> Very often people rotate the shifter base by 90 degrees by mistake
>>>> because the shifter has been on and off its based several times in its life
>>>> and people just lose track.
>>>>
>>>> I tried that Bill.
>>>>
>>>> Sounds like the shifter is shot.
>>>>
>>>> ~Hugh
>>>>
>>>> “Life is like riding a bicycle. To keep your balance, you must keep
>>>> moving.” ― Albert Einstein
>>>>
>>>> http://velocipeedemusings.com/
>>>>
>>>>
>>>>
>>>> On Wed, Oct 12, 2016 at 10:40 AM, Bill Lindsay <tape...@gmail.com>
>>>> wrote:
>>>>
>>>>> The internals of a shimano indexed barcon shifter are not repairable.
>>>>>
>>>>> 1.  What model exactly is your shifter?
>>>>> 2.  exactly which index positions are missed?
>>>>>
>>>>> The answers to 1 and 2 might imply a setup mistake.  Very often people
>>>>> rotate the shifter base by 90 degrees by mistake because the shifter has
>>>>> been on and off its based several times in its life and people just lose
>>>>> track.  The base piece fits onto a square protuberance on the shift pod.
>>>>> The shifter itself has a round recess with a single rectangular keyway.
>>>>> The corresponding round feature and keyway on the shifter base must be
>>>>> oriented correctly.  The correct orientation has the keyway pointing DOWN
>>>>> towards the ground, tilted slightly towards the REAR of the bicycle.
>>>>>
>>>>> If you are missing random middle shifts, and are not missing one end
>>>>> or the other, then this setup error is not your problem and your shifter 
>>>>> is
>>>>> just shot.
>>>>>
>>>>> Bill Lindsay
>>>>> El Cerrito, CA
>>>>>
>>>>>
>>>>> On Wednesday, October 12, 2016 at 10:30:49 AM UTC-7, Hugh Smitham
>>>>> wrote:
>>>>>>
>>>>>> I have a right dura ace bar con shifter that misses some of the index
>>>>>> positions. It works fine in friction but I like my index. Does anyone 
>>>>>> know
>>>>>> whether the internals are repairable?
>>>>>>
>>>>>> ~Hugh
>>>>>>
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