I read all your stuff a few days ago, JimF, and was very grateful for the pictures.

I'm assuming the people that rebuild these units professionally do have a source for a new circuitboard that has the resistance element in it. We just don't know what source that is and obviously nobody is talking.

I wouldn't either if I were rebuilding something that cost 2-300 to fix and could be sold with an +130% markup.

Porsche 944 owners apparently have a similar problem with a pot based sensor, but they have it worse, as Porsche has quit selling a replacement part! Many of those people apparently extend the pot swingarm so that the contact element crosses a slightly different section of the resistance element, which is presumably intact.

Looking at your pictures JimF, it looks like the contact element crosses the entire width of the two strips of resistance element. So that might not be a way to go.

There may be a way however to redesign the part or to rebuild or re-make the resistance element circuit board. Dad does have circuit board fabrication experience, and loves a challenge to be sure.

You're right about cores though, I'll be careful.

Justin