| > 1) The Speedometer indication can be adjusted with re-
magnetization of 
> an age reduced drag magnet and reaction spring that 
makes the needle 
> read a specific number at a specific cable rotational 
rate.  This can be 
> done over a wide range of incorrect values for the 
rest of the driving 
> chain (below). Usually it is accurate at the 
calibration speed 
> indication chosen, and falls off on either side. This 
is normal even 
> with correct driving set-up, but gets worse the more 
you divert from the 
> correct set.
> 
Steve,
Rather than re-magitize, I have been successful in doing 
the following:
If you look at the face down where your revs/mile number 
is located, you will notice a small dot.  I believe this 
is the needle pre-load point.  This is where the needle 
should sit when you let it go below the spring loaded 0 
stop.  Putting the needle back on with more or less pre-
load compensates for the different magnet attraction 
(well you physics guys might not agree, but it works for 
me!).  When I was younger and stupider, I used to drive 
the car at a know speed (by the Tach) and THEN put the 
needle on at the correct speed indication.
Gary
 |