stuck odometer, type 44, infamous gear is intact

[kbogach]

One possible reasons is that I put replacement gear in wrong position - 
boss up, instead of down.  After staring at the thing, it seems to me 
that it is not enough connection between gears (15 tooth one and rotor's 
gear) if the boss is up.  Anyone remember right orientation?
I did not notice position of original gear when I took it apart first 
time.  But what throws me off is that the original gear was intact and 
it was positioned right, I assume, and it got intermittent at some point 
anyway.

Oh...Huw, where are you?

Konstantine


kbogach wrote:
> I took apart odometer very carefully, trying not to push on reset 
> knob, not shaking internals.   And what?  When I rotate magnetic rotor 
> of the stepper motor with my fingers everything works smoothly, no 
> cogging, anything.  When it was on the car it did not work!  I would 
> think it is electrical problem but resetting the odometer does changes 
> something - it starts working for sometime.  Not always, but most of 
> the time.  It solidly stuck a few days ago - pressing reset know did 
> not help.  It is when I decided to get it apart again and try if I 
> notice something if I rotate stepper's rotor by myself.  Now I stuck 
> too.  Not sure what else to do.   I think I need a bench test setup 
> like Huw used when he fixed his odometer.   I contacted him off list 
> asking for help.
>
> Konstantine
>
> kbogach wrote:
>> Hi everyone,
>> I got sick of stuck odometer in my UrS4'93.  I said type 44, I know, 
>> but instrument cluster is virtually the same as in my 200tqa.  At 
>> least, odometer/speedo part.  First thing I did is  searching  
>> digests I stored unread for the last 2 years (unfortunately, I am 
>> still that crazy busy and I am lucky that both cars do not give me 
>> big problems for the last 3 years. Except broken clutch pedal, but it 
>> was on another 200tq which I lost to divorce.   By the way, it was 
>> foolishly "got rid of" for $500 to some lucky guy).
>> So, I found out that Huw dealt with the similar problem in January 
>> 2007,  a little after I replaced that  15 tooth gear, which was 
>> completely fine, by the way, with one I bought from Southern 
>> Electronics (I posted a question and got a pointer right away.  
>> Thanks again!)    Did not help.   Odometer  was still  intermittent.  
>> Taking it apart 2 more times and trying to figure out a cause did not 
>> do any good.  I lived with it until today.   By the way,  I seems to 
>> me, it works better at colder temps.  Bug rather than planning to 
>> move to colder state I decided to poke into the odometer again.
>>
>> I've never heard about similar scenario on these clusters(I spent 
>> some time searching through archives before).   All posts about the 
>> stuck odometer concluded with broken gear. But just in case,  anyone 
>> can think of something?  I am planning, if I don't find anything 
>> mechanical, to solder 2 thin wires to odometer's motor, lead them 
>> outside and solder a LED to them to exclude electrical problem.  
>> Unfortunately,  I don't have a pulse generator to test it on a bench.
>>
>> Konstantine (feeling very sentimental while typing.  Nice to see so 
>> many familiar names are still active on the list)
>>
>