Magnetic Speedometer Repair
Dr Mike Flannery
Welcome To Cleaning and Servicing NEMAG Speedometers
The Smiths Jaeger make of speedometers were fitted in very many British cars light vans and motorcycles of the 1930-1960 and even beyond. They work on a simple principle of magnetic eddy currents. In most cases they are reliable and generally give trouble free operation. Smiths Jaeger referred to them as the NEMAG instruments.
We can clean and service your damaged or faulty speedometer. We hold a dedicated range of parts but also have the specialist facilities to make any part that is required. From having new bespoke dials made in the traditional fashion or new central arbors, shafts, gears, we can re pivot worn shafts and re-bush where required. We can calibrate your speedometer after a service, using a specially made state of the art recalibration machine. Most of the speedometers we work on are well over fifty years old and calibration is carried out setting the speedometer to run as close as possible at an indicated 30mph.