Does anyone know the final ratio of the speedo gearbox? The chap servicing the speedo off my Comet needs to know this in order to check the calibration of the speedo.
One revolution of the front wheel produces something like 2 and a bit??? revolutions of the cable. Both Richardson and Stevens tell me the ratio is 1.5:1 between the drive gear and pinion but the worm/wheel must give it a bit more. Anyone know the exact figure?
thanks
Dave
One revolution of the front wheel produces something like 2 and a bit??? revolutions of the cable. Both Richardson and Stevens tell me the ratio is 1.5:1 between the drive gear and pinion but the worm/wheel must give it a bit more. Anyone know the exact figure?
thanks
Dave