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Old 23-06-17, 09:11 PM   #1
billy_bunter
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Default Another Odemeter thread with a twist

Me again. Been driving 80 B2 to and from work the odometer is not working.
Found this in the instrument cluster on the speedo side of the binnacle today



Come of this I assume



from somewhere in here?



2 Questions I am hoping someone can answer

How do I get it apart to find out where the cog came from?
Where can I obtain a new cog from?
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Old 24-06-17, 07:00 AM   #2
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No need to take apart.

The cog should be on the shaft that sticks out on the LHS - It meshes perpendicular with the worm drive ( the white /cream coloured shaft)
If you are VERY careful you could stick the gear back together with some quick setting plastic weld - I would advise against superglue as it sets too hard and will probably cause more damage than it repairs - however, if I were you I would get a unit from a scrapper and replace just the broken bit on yours.
ISTR that the cog is secured with some sort of epoxy on the shaft - may need to GENTLY warm it up to get it off.

Mark
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Old 24-06-17, 12:37 PM   #3
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Thanks Mark

That makes sense now. Any recomendations for the plastic weld....

Cheers
Ewan
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Old 24-06-17, 01:04 PM   #4
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Old 24-06-17, 01:22 PM   #5
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Superb !

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Old 25-06-17, 08:39 AM   #6
billy_bunter
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Fantastic Photo Soren. Is that standard or a repair? What is the circlip doing? - Thats what its doing http://forums.vwvortex.com/showthrea...roken-odometer


Just found this Blog on a late 70's Passat -

http://ost-blog.passat32.de/2014/04/...ag-mich-nicht/

Looks the same as mine.

Last edited by billy_bunter; 25-06-17 at 08:21 PM.
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Old 25-06-17, 09:00 AM   #7
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Found picture on internet. There is a guy in hungary (?) selling new cogs on ebay... 3D printed cogs...
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Old 25-06-17, 12:12 PM   #8
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Thank you. Found the picture link on VW Vortex...

http://forums.vwvortex.com/showthrea...roken-odometer

found him on ebay based in Zaalegerzeg i've been there :-). Mine is a 21 tooth :-( Think the one he has fixes the later odometers. I will send him an email. If I am correct in my assumptions my part also fits the early golfs so may be worht him looking into it.

Last edited by billy_bunter; 25-06-17 at 12:22 PM. Reason: more infoon the Hungary angle
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Old 25-06-17, 01:47 PM   #9
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Quote:
Originally Posted by billy_bunter View Post
Thanks Mark

That makes sense now. Any recomendations for the plastic weld....

Cheers
Ewan
try this - worked a treat on mine

https://www.amazon.co.uk/d/Outlet/Ta...ent/B0053WXLVU

That's a good fix with the circlip that SorenR found though!!
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Old 09-08-17, 09:15 PM   #10
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As always takes longer than you hoped. I tried a repair using the plastic weld abut it would not take. Even got a washer made at work and tried to use an epoxy whilst in a vice. This did not work as the cog would not grip the rod. I could have glued this to the rod but decided to source a new cog
I ordered a new cog from a bloke in Germany pretty sure he gets them from America.

American site - http://www.mediafire.com/file/2hr265...6x/cc.bt.b.zip
Euro site - http://speedometercogs-gears.com/aud...eedometer.html

Part arrived and I fitted it the other week. Finally got it into the car on Monday night.

Note the blob of epoxy to make sure it stays on.



and working :-)

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