Odometer Gears

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sideshowbob
Posts: 238
Joined: Mon Aug 01, 2011 2:18 pm
Location: Hampshire UK

Odometer Gears

Post by sideshowbob »

The odometer has stopped working on my '88 BMW 635 CSi. After a bit of a struggle I have managed to remove the instrument cluster and remove the speedometer from the cluster.

On inspection of the gears to the odometer they have basically disintegrated .

My problem now is where do I source new gears as in the UK we measure in miles and not in Km.

The cluster is a VDO unit and all the gears for sale on the internet appear to be for KM units.

Also I did not take a picture of the gears as I took them apart and if I can source new gears will struggle to sequence them back in the right order when I reassemble the unit.

Help needed
TimU
Posts: 280
Joined: Tue Dec 14, 2021 2:16 am
Location: Sydney

Re: Odometer Gears

Post by TimU »

Here are all the instructions you'll need to complete this job:

https://www.odometergears.com/products/ ... 9+Elec./30
04/1986 635csi Euro spec
Australian Delivered, RHD
sideshowbob
Posts: 238
Joined: Mon Aug 01, 2011 2:18 pm
Location: Hampshire UK

Re: Odometer Gears

Post by sideshowbob »

Yes, I have seen that, but I have all the gears out and it is not that obvious when on the bench where they all go and in what relationship.
I could do with a side on photograph of all the gears in situ.
But thanks for the help
TimU
Posts: 280
Joined: Tue Dec 14, 2021 2:16 am
Location: Sydney

Re: Odometer Gears

Post by TimU »

How's this?
I have stacks more photos I can share if needed.
IMG_20220705_184655.jpg
IMG_20220705_184655.jpg (2.67 MiB) Viewed 545 times
IMG_20220705_204228.jpg
IMG_20220705_204228.jpg (2.7 MiB) Viewed 545 times
04/1986 635csi Euro spec
Australian Delivered, RHD
sideshowbob
Posts: 238
Joined: Mon Aug 01, 2011 2:18 pm
Location: Hampshire UK

Re: Odometer Gears

Post by sideshowbob »

Hi TimU,
Thanks for the pictures. They are exactly what I was looking for.

Do I assume that the top picture is the first combination of cogs going into the odometer with the second picture the final 'layer'

Really helpful and once again, thanks
TimU
Posts: 280
Joined: Tue Dec 14, 2021 2:16 am
Location: Sydney

Re: Odometer Gears

Post by TimU »

sideshowbob wrote: Wed Sep 20, 2023 1:17 pm Do I assume that the top picture is the first combination of cogs going into the odometer with the second picture the final 'layer'
Yep, that's correct.
The black gear is a dual-layer gear, with the smaller gear-face on the inside.
04/1986 635csi Euro spec
Australian Delivered, RHD
sideshowbob
Posts: 238
Joined: Mon Aug 01, 2011 2:18 pm
Location: Hampshire UK

Re: Odometer Gears

Post by sideshowbob »

Thanks again, all back together.......just got to get it back, with all the plugs fitted and then back into dashboard !!
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