If you have not had any training on adjusting the hair spring you can end up with a speedometer that is spot on at 60 MPH but 5 to 15 MPH off at the 10 to 25 MPH speeds.
Antique car speedometer not accurate. This speedometer error is due mainly to variations in tire diameter tire wear tire temperature pressure and vehicle load. They will read high but its for a different reason. In this instance your speedometer will need to go to a shop for repaircalibration.
Not always it depends on. The most a speedometer can be off at that same 100 mph 160 kph is nearly 13 mph. A malfunctioning speedometer sensor can also cause a.
Antique speedometer restorations are our specialty. One of the biggest signs your speedometer sensor is not working properly is the speedometer will display inaccurate readings or the needle or digital numbers will not move at all on the speedometer display. Without an accurate and functional speedometer any classic car restoration project would not be completeWe have the necessary facilities for rebuilding and restoring all antique classic and vintage car speedometers.
In this particular case lets say that your speedometer was reading 55mph. If the odometer numbers measure accurately but the needle is not accurate for your speed the problem is in the internal speedometer mechanism. For a vehicle travelling at a true speed of 100kmh the speedo must read between 100kmh and 114kmh.
If thats the case changing gears is not going to help. Reasons why your speedometer is inaccurate Many things can throw off your speed or the way your speedometer reads it. Compare this chart to the first one.
That argument never works though because by design the vehicles speedometer is accurate by law or international agreement to about plus-or-minus 10. This particular fix should work for any car with an electronic speedometerso not your 67 Camaro with a gauge driven by a cable coming off the transmission. The speedo must not indicate a speed less than the vehicles true speed or a speed greater than the vehicles true speed by an amount more than 10 percent plus 4 kmh.