spock345
Well-known member
- Joined
- Nov 3, 2016
- Location
- Livermore, CA
Slow going on the Amazon. M41 started making bearing noise. So I gotta pull that soon. I didn't feel like doing that right now and the 240 is occupying the garage for rust and windshield work.
Instead I decided to fix a 164 clock to put in the dash somewhere. These things are interesting. They seem to be a mechanical movement but the spring is wound by 12v? There is also a fusable link in the clock that is a low temp solder with a 120C fusing point. So when the solder hits 120C the solder joint will break one contact will separate from the other under spring pressure.
https://www.pelicanparts.com/bmw/techarticles/Borrowed/mult_vdo_clock_repair.htm
So the fix is to find the right solder, which in my case was 52% Indium/48% Selenium stuff I found online.
Hooked it up to 12V and nudged the little wheel inside and it started ticking.
https://i.imgur.com/V9vt7G5.mp4
Instead I decided to fix a 164 clock to put in the dash somewhere. These things are interesting. They seem to be a mechanical movement but the spring is wound by 12v? There is also a fusable link in the clock that is a low temp solder with a 120C fusing point. So when the solder hits 120C the solder joint will break one contact will separate from the other under spring pressure.
https://www.pelicanparts.com/bmw/techarticles/Borrowed/mult_vdo_clock_repair.htm
So the fix is to find the right solder, which in my case was 52% Indium/48% Selenium stuff I found online.

Hooked it up to 12V and nudged the little wheel inside and it started ticking.
https://i.imgur.com/V9vt7G5.mp4