Speedo cable with Columbia overdrive

[solidaxle]

All good suggestions. I would take everything apart, clean and lube. When my Harley panhead speedo quit. I thought it was lack of lubrication to the cable. John Bordas in Texas, the guy I sent it to for repair, like ford38v8 mentioned, said it could have been the lube in the speedometer itself that has dried up causing it to lock up and twist the cable. He also mentioned make sure the cable is not too long or short, this will damage the speedometer. An 1/8"and no more then a 1/4" long past the end. Running the speedometer off a drill may or may not prove proper lubrication, since the drill will not lock up like a speedometer cable.