I refurbished the speedometer on my ‘46 project using the Tech Tip provided in the Stovebolt. It was a worthwhile learning experience and the effort worked, for a short while. I ended up having to send it in for a more work. I used a guy in Grand Island, NE. He went through the whole thing again and recalibrated it. It turned out there was more dismantling needed to clean and lubricate parts than the Tech Tip shows for this model speedometer. He told me to get into the parts not cleaned previously that some “special” tool(s) were required. The AD model speedos are apparently slightly different than the ‘46 version.
