I got what was wrong with mine figured out, but can't get it all back together right. The brass part that spins was seized and one of the weight fell off. I got it loose, greased and free and replaced the weighted part from an Alpine. I have it reassembled but without all springs, which is probably why now it doesn't work.
I have enough parts between mine and the Alpine donor speedo and will ship it all to someone who can fix it.
I have enough parts between mine and the Alpine donor speedo and will ship it all to someone who can fix it.