Hallo Bjoern,[p]
die Tageskilometerzaehler reagieren sauer, wenn man sie zuruecksetzt waehrend das Fahrzeug in Bewegung ist. Selbst habe ich das Problem noch nicht beheben muessen, aber in einer amerikanischen Newsgroup gab es einen Beitrag dazu. Der Einfachheit halber habe ich ihn einfach kopiert und angehaengt.[p]
Gruss,[br]
Eberhard[p]
odometer fix[br]
Richard Soennichsen (richas@pacbell.net)[br]
Wed, 7 Oct 1998 08:19:40 -0700 [p]
A Possible odometer fix. (For older mechanical, i.e. not electronic,[br]
speedos made by VDO)[p]
Symptom: No odometer movement or erratic operation.[p]
Read this entire document before proceeding.[p]
I claim no responsibility for the validity of this advice. Resetting of a[br]
odometers mileage is illegal. Blah blah blah[p]
Remove the speedometer.[p]
Remove the back plate. Notice that there are two sets of number wheels, the[br]
trip odometer and the main. Notice that at one end of the main there is a[br]
grey aluminum gear/cog.[p]
Push on this cog. Does it spin easily? If so this is you problem and you[br]
may read on. If not you must look elsewhere.[p]
This cog is press fit to the shaft and should turn with the shaft.[p]
First the shaft, and the gear on its end, must be removed. The number[br]
wheels and the cog must be supported while the shaft is being removed. THIS[br]
IS IMPORTANT! If the assembly is not carefully supported you will lose you[br]
mileage and it will be difficult to reset it.[p]
Find a rod the same diameter as the shaft. Maybe a coat hanger section? I[br]
used a piece of welding rod.[p]
Begin by prying (gently) the rod out at the gear end. AT THE SAME TIME feed[br]
the section of rod into the other end. As the original shaft is pushed out[br]
it is being replaced by your replacement rod. Maintain constant pressure[br]
‘inwards' by the replacement rod or all is lost.[p]
Hopefully at this point you have the geared rod removed and the temporary[br]
rod holding the number wheel/cog assembly in place.[p]
Locate the part on the rod where the aluminum cog rides. Sometimes there is[br]
a polished band where it has been slipping. (For years?)[br]
This section of the rod (~1-2 mm) needs to be ‘roughed up' in order for the[br]
cog to turn with the shaft. I used a pair of locking vise-grips to knurl[br]
the shaft. Be careful! It only needs a little. Too much and reinstallation[br]
will be difficult.[p]
Replacement is the opposite of removal. The temporary rod is pushed out by[br]
the original. Watch the numbers as you reinstall to make sure they are[br]
correct and also not stuck half way in-between a digit. (My ones place is[br]
like this but heck if I am taking it apart again!) When the knurled section[br]
gets to the cog it will take some force to get it to slid through. A small[br]
hammer helps. (Egads!) Or if used wisely, large channel locks.[p]
I have done this fix many times with great success.[p]
Good Luck[p]
Richard Soennichsen[p]
[br]