23-09-2022, 05:58 PM
My personal view :- I have a metal cased speedo cable on a 3 speed box for a 32 RN saloon. I replaced a much older cable as the speedo needle jittered back and forth. After a few hundred miles, the new speedo cable was as bad as the ancient one and got so bad that the top end of the cable was HOT to touch and was noisier than the gearbox which is saying something. Oh, and I can confirm that the cable was not being used as an EARTH return..